vertical scrubber (va 1123) - copy

Laporan ReengineeringPT. Putra Arkaca Sejati

Vertical ScrubberTag No.VA - 1123

Rev. 0

Page:

RINGKASAN EKSEKUTIF

1. PENDAHULUAN

Dalam usaha untuk menjamin keselamatan dan kelayakan penggunaan peralatan dan instalasi bagi manusia dan lingkungan serta demi kelangsungan produksi, khususnya di lingkungan Pengusahaan Minyak dan Gas, maka dipandang perlu adanya Pedoman dan Tata Cara Pemeriksaan Keselamatan Kerja atas instalasi.

Peralatan dan Teknik yang dipergunakan dalam lingkungan termasuk diatas, meliputi Bejana Tekan yang merupakan salah satu dari bagian dalam proses Sertifikasi SKPP (Sertifikat Kelayakan Penggunaan Peralatan), hal ini tertuang dalam SK Dirtjen Migas No. 84K/38/DJM/1998, tentang “Pedoman dan Tata Cara Pemeriksaan Keselamatan Kerja atas Instalasi, Peralatan dan Teknik yang Dipergunakan Dalam Usaha Minyak & Gas Bumi. Bejana Tekan yang dipakai berfungsi sebagai Scrubber dalam pengoperasian Stasiun Pengisian Bahan Bakar Gas.

Bejana Tekan ini digunakan sebagai peralatan untuk mendukung operasional di fasilitas produksi Minyak dan Gas Bumi dan untuk tujuan tersebut diatas pemeriksaan di laksanakan oleh instansi yang ditunjuk pemerintah dalam hal ini Direktorat Jendral Minyak dan Gas Bumi.

2. KODE & STANDARD

Dalam pelaksanaan inspeksi standard, kode dan spesifikasi yang digunakan sebagai acuan dalam melaksanakan inspeksi meliputi:

API 510, Pressure Vessel Inspection Code, Latest Edition. API RP 572, Inspection of Pressure Vessel, Latest Edition. NB-23- Nation Board Inspection Code, Latest Edition. ASME SECTION VIII DIVISION 1&2, “Boiler and Pressure Vessel Code: Nondestructive

Examination “ & “Boiler and Pressure Vessel Code: Rules For Construction of Pressure Vessels”, July 1, 2010.

3. REVIEW DOKUMEN

Dokumen yang diperoleh sudah dilakukan verifikasi dan hasil yang sesuai yang meliputi:

Perhitungan Bejana Takan NDE Report (Ultrasonic Testing)

4. LINGKUP INSPEKSI DAN TESTING

Seperti yang tertuang dalam SK Ditjen Migas No. 84K/38/DJM/1998, tertanggal 19 Agustus 1998, tentang “Pedoman dan Tata Cara Pemeriksaan Keselamatan Kerja atas Instalasi, Peralatan dan Teknik yang Dipergunakan Dalam Usaha Minyak & Gas Bumi dan Pengusahaan Sumber Daya Panas Bumi”, lingkup inspeksi adalah meliputi penelaahan dokumen, inspeksi dan verifikasi konstruksi, inspeksi dan verifikasi instrument pengukur, peralatan pengaman, fasilitas keselamatan dan tanda bahaya, kabel color coding, kekencangan baut pengikat penghantar dan verifikasi operasi normal operasi peralatan.

Visual Inspeksi- Shell : Tidak ditemukan bukti kerusakan secara visual akibat pengaruh korosi.- Head : Tidak ditemukan bukti kerusakan secara visual akibat pengaruh

korosi.- Manhole/Nozzle : Tidak ditemukan bukti kerusakan secara visual atau kondisi yang

kurang sesuai- Support : Tidak ditemukan bukti kerusakan secara visual atau kondisi yang

kurang sesuai- Pressure Safety Device

1. Pressure Gauge : Ada, pada jaringan pipa.2. Temperature Gauge : Tidak Ada.3. PSV : Tidak Ada.

- Coating : Tidak ditemukan bukti kerusakan secara visual pada cat pelindung

NDT testing (Ultrasonic Testing)NDT testing (Ultrasonic Testing) pada Bejana Tekan dilakukan oleh PT. Putra Arkaca Sejati (PT.PAS) yang meliputi pengukuran tebal dinding Shell yang dilakukan secara random, pada shell, top head, bottom head dan NozzleManhole. Berdasarkan hasil pengukuran untuk minimum tebal shell adalah 8.38mm dan minimum tebal head adalah 8.10mm.

5. TEMUAN HASIL INSPEKSI DAN PERHITUNGAN

Setelah dilakukan pemeriksaan secara visual, melakukan NDT testing dan perhitungan ulang dengan menggunakan beberapa parameter yang mengacu pada kode dan standard yang dipakai dan memverifikasi beberapa data dilapangan maka diperoleh spesifikasi teknis untuk komponen Bejana Tekan sebagai berikut ini:

DATA TEKNISOwner :PT.Gagas Energi IndonesiaTag No. : VA-1123Serial No. : -Year Build : 24-12/1993Ukuran : 933 mm (OD) X2300 mm (S/S)Type : VerticalLokasi :PortableUraian :Vertical ScrubberDesain Tekanan : 11.031 Kg/cm2.GDesain Tem. : 93 C (Asumsi)Shell Material : SA-283 Gr.C (Asumsi)Head Material :SA-283 Gr.C (Asumsi)Corrotion Allowance : 1.5 mm/YearKondisi Permungkaan: CatRadiography :TidakJoint Efficiency :0.75

6. EVALUASI HASIL PERHITUNGAN

- Berdasarkan hasil pemeriksaan visual pada Bejana Tekan yang disebutkan di atas, tidak ada ditemukan ketidaksesuaian pada komponen Bejana Tekan baik dari hasil pemeriksaan secara visual maupun dan dari hasil pemeriksaan non destruktif test (Ultrasonic Testing).

- Berdasarkan hasil perhitungan MAWP (Maximum Allowable Working Pressure dengan mengacu kepada kode ASME SECTION VIII DIVISION 1 dan API 510 diperoleh hasil MAWP : 11.89 Kg/cm2.G pada temperatur 93 oC

- Dari hasil perhitungan juga diperoleh tebal pelat minimum yang disarankan agar bisa beroperasi secara.

No. Element M.A.W.P(kgf/cm²)

Actual Thickness(mm)

Required Thickness(mm)

Result

1 Bottom Head 12.34 8.38 7.65 Acceptable2 Shell 12.28 8.38 7.68 Acceptable3 Top Head 11.86 8.10 7.64 Acceptable

7. KESIMPULAN

Setelah dilakukan pemeriksaan dan perhitungan ulang untuk komponen Bejana Tekan berdasarkan hasil inspeksi, verifikasi secara visual, melakukan NDT testing dan perhitungan ulang dengan menggunakan beberapa parameter yang diperoleh yang mengacu pada kode dan standard maka kami merekomendasikan Bejana Tekan masih dapat dipergunakan sampai jangka waktu 12 tahun, untuk mendapat sertifikas dari Migas.

8. REGULASI & REFERENSI

Peraturan pemerintah yang tertuang dalam SK Dirjen MIGAS

No.84K/38/DJM/1998, tertanggal 19 Agustus 1998 tentang “Pedoman dan Tata Cara Pemeriksaan Keselamatan Kerja atas Instalasi, Peralatan dan Teknik yang Dipergunakan Dalam Usahan Pertambangan Minyak dan Gas Bumi dan Pengusahaan Sumber Daya Panas Bumi”.

Eugene E Megyesy, “ Pressure Vessel HandBook ”, 1998 Edition.

NBIC, ” The National Board of Boiler and Pressure Vessel Inspectors ”, Dec 31, 2007.

Job No.:001/GEI/2013MECHANICAL DESIGN CALCULATION SHEET

Vertical ScrubberTag No.VA - 1123Document No.: 001

Rev. 0Page:

PROJECT NAME:

PT Gagas Energi Indonesia

MECHANICAL DESIGN CALCULATION SHEET

FOR

Vertical Scrubber

Tag No.VA-1123

0 Issue for Information 12-Nov-13

REV. DESCRIPTION OF REVISIONSPREPARED

BYREVIEWED

BYDISC.

APPROVALPROJECTAPPROVAL

ISSUE DATE

DESIGN SUMMARY

Tag No. VA-1123 Design Code : ASME Section VIII, Div.1

Hydrotest Requirement: UG99-b

Description Design

Dimension (mm) (933) OD x 2300 L (S/S)

Design Int. Pressure(kgf/cm²)

11.031

Design Ext. Pressure (bars)

FV @ 93 oC

Design Temp. (oC) 93

Hydrotests Pressure(kgf/cm²)

15.423

MAWP (kgf/cm²) 11.864 , limited by: Top Head

Joint Efficiency 0.75

Thickness (mm)8.38 (Shell)/ 8.10 (Top Head) /

8.38 (Bottom Head)Internal Corrotion Allowance (mm)

1.5

MDMT(oC) -29

PWHT No

Radiography None

Notes:

Table of Contents

Cover Sheet...............................................................................................................................................9Title Page...............................................................................................................................................10Warnings and Errors.........................................................................................................................11Input Echo...............................................................................................................................................12XY Coordinate Calculations.........................................................................................................16Internal Pressure Calculations...............................................................................................17External Pressure Calculations...............................................................................................20Element and Detail Weights.........................................................................................................22Nozzle Flange MAWP............................................................................................................................24Natural Frequency Calculation.................................................................................................25Wind Load Calculation.....................................................................................................................26Earthquake Load Calculation......................................................................................................29Wind/Earthquake Shear, Bending...............................................................................................30Wind Deflection...................................................................................................................................31Longitudinal Stress Constants.................................................................................................32Longitudinal Allowable Stresses.............................................................................................33Longitudinal Stresses Due to . . ......................................................................................34Stress due to Combined Loads....................................................................................................36Center of Gravity Calculation.................................................................................................40Leg Check, (Operating Case)......................................................................................................41Nozzle Calcs. N5:2'' Sch 40......................................................................................................43Nozzle Calcs. N2:6'' Sch 80......................................................................................................46Nozzle Calcs. N3:6'' Sch 80......................................................................................................50Nozzle Calcs. N4:10'' Sch 80....................................................................................................54Nozzle Calcs. N1:2'' Sch 40......................................................................................................58Nozzle Schedule...................................................................................................................................61Nozzle Summary.....................................................................................................................................62Vessel Design Summary.....................................................................................................................63

Cover Page

DESIGN CALCULATION

In Accordance with ASME Section VIII Division 1

ASME Code Version : 2007

Analysis Performed by : PT.Putra Arkaca Sejati

Job File : D:\PT.ARKACA\SCRUBBER (VA 1123).PVI

Date of Analysis : Nov 20,2013

PV Elite 2007, March 2007

9

Title Page

Note: PVElite performs all calculations internally in Imperial Units to remain compliant with the ASME Code and any built in assumptions in the ASME Code formulas. The customary Imperial database is used for consistency. The finalized results are reflected to show the users set of selected units.

Refer to Code Case 2523 for more information.

10

FileName : Scrubber (VA 1123)--------------------------------Warnings and Errors STEP: 0 7:20a Nov 20,2013

Class From To : Basic Element Checks.==========================================================================

Class From To: Check of Additional Element Data==========================================================================

There were no geometry errors or warnings.

PV Elite 2008 ©1993-2008 by COADE Engineering Software

11

FileName : Scrubber (VA 1123)--------------------------------Input Echo STEP: 1 7:20a Nov 20,2013

PV Elite Vessel Analysis Program: Input Data

Design Internal Pressure (for Hydrotest) 11.031 kgf/cm² Design Internal Temperature 93 C Type of Hydrotest UG99-c Hydrotest Position Horizontal Projection of Nozzle from Vessel Top 0.0000 mm Projection of Nozzle from Vessel Bottom 0.0000 mm Minimum Design Metal Temperature -29 C Type of Construction Welded Special Service None Degree of Radiography RT 1 Miscellaneous Weight Percent 0. Use Higher Longitudinal Stresses (Flag) Y Select t for Internal Pressure (Flag) N Select t for External Pressure (Flag) N Select t for Axial Stress (Flag) N Select Location for Stiff. Rings (Flag) N Use Hydrotest Allowable Unmodified Y Consider Vortex Shedding N Perform a Corroded Hydrotest N Is this a Heat Exchanger No User Defined Hydro. Press. (Used if > 0) 0.0000 kgf/cm² User defined MAWP 0.0000 kgf/cm² User defined MAPnc 0.0000 kgf/cm²

Load Case 1 NP+EW+WI+FW+BW Load Case 2 NP+EW+EE+FS+BS Load Case 3 NP+OW+WI+FW+BW Load Case 4 NP+OW+EQ+FS+BS Load Case 5 NP+HW+HI Load Case 6 NP+HW+HE Load Case 7 IP+OW+WI+FW+BW Load Case 8 IP+OW+EQ+FS+BS Load Case 9 EP+OW+WI+FW+BW Load Case 10 EP+OW+EQ+FS+BS Load Case 11 HP+HW+HI Load Case 12 HP+HW+HE Load Case 13 IP+WE+EW Load Case 14 IP+WF+CW Load Case 15 IP+VO+OW Load Case 16 IP+VE+OW Load Case 17 IP+VF+CW Load Case 18 FS+BS+IP+OW Load Case 19 FS+BS+EP+OW

Wind Design Code ASCE-7 93 Design Wind Speed 112.65 km/hr Exposure Constant C Importance Factor 1. Roughness Factor 1 Base Elevation 0.0000 cm Percent Wind for Hydrotest 33. Use Wind Profile (Y/N) N Damping Factor (Beta) for Wind (Ope) 0.0100 Damping Factor (Beta) for Wind (Empty) 0.0000 Damping Factor (Beta) for Wind (Filled) 0.0000

Seismic Design Code UBC 94 UBC Seismic Zone (1=1,2=2a,3=2b,4=3,5=4) 0.000 UBC Importance Factor 1.000 UBC Soil Type S1 UBC Horizontal Force Factor 3.000 UBC Percent Seismic for Hydrotest 0.000

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Design Nozzle for Des. Press. + St. Head Y Consider MAP New and Cold in Noz. Design N Consider External Loads for Nozzle Des. Y Consider Code Case 2168 for Nozzle Des. N

Material Database Year Current w/Addenda or Code Year

Complete Listing of Vessel Elements and Details:

Element From Node 10 Element To Node 20 Element Type Elliptical Description Bottom Head Distance "FROM" to "TO" 5.0800 cm Element Outside Diameter 933.00 mm Element Thickness 8.3800 mm Internal Corrosion Allowance 1.5000 mm Nominal Thickness 0.0000 mm External Corrosion Allowance 0.0000 mm Design Internal Pressure 11.031 kgf/cm² Design Temperature Internal Pressure 93 C Design External Pressure 1.0546 kgf/cm² Design Temperature External Pressure 93 C Effective Diameter Multiplier 1.2 Material Name SA-285 C Allowable Stress, Ambient 1103.8 kgf/cm² Allowable Stress, Operating 1103.8 kgf/cm² Allowable Stress, Hydrotest 1435.0 kgf/cm² Material Density 0.007833 kgm/cm³ P Number Thickness 31.750 mm Yield Stress, Operating 1933.4 kgf/cm² UCS-66 Chart Curve Designation A External Pressure Chart Name CS-2 UNS Number K02801 Product Form Plate Efficiency, Longitudinal Seam 0.75 Efficiency, Circumferential Seam 0.75 Elliptical Head Factor 2.

Element From Node 10 Detail Type Liquid Detail ID LIQUID Dist. from "FROM" Node / Offset dist -23.325 cm Height/Length of Liquid 28.405 cm Density of Liquid 0.0009996 kg/cm³

Element From Node 10 Detail Type Nozzle Detail ID N5:2'' Sch 40 Dist. from "FROM" Node / Offset dist 0.0000 mm Nozzle Diameter 2. in. Nozzle Schedule 40 Nozzle Class 150 Layout Angle 0. Blind Flange (Y/N) N Weight of Nozzle ( Used if > 0 ) 0.0000 kgf Grade of Attached Flange GR 1.1 Nozzle Matl SA-106 B

Element From Node 10 Detail Type Leg Detail ID LEGS Dist. from "FROM" Node / Offset dist 0.0000 cm Diameter at Leg Centerline 910.00 mm Leg Orientation 1 Number of Legs 3

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Section Identifier W8X24 Length of Legs 40.000 cm

Element From Node 20 Element To Node 30 Element Type Cylinder Description Shell Distance "FROM" to "TO" 230.00 cm Element Outside Diameter 933.00 mm Element Thickness 8.3800 mm Internal Corrosion Allowance 1.5000 mm Nominal Thickness 0.0000 mm External Corrosion Allowance 0.0000 mm Design Internal Pressure 11.031 kgf/cm² Design Temperature Internal Pressure 93 C Design External Pressure 1.0546 kgf/cm² Design Temperature External Pressure 93 C Effective Diameter Multiplier 1.2 Material Name SA-285 C Efficiency, Longitudinal Seam 0.75 Efficiency, Circumferential Seam 0.75

Element From Node 20 Detail Type Liquid Detail ID LIQUID Dist. from "FROM" Node / Offset dist 10.000 cm Height/Length of Liquid 0.0000 cm Density of Liquid 0.0009996 kg/cm³

Element From Node 20 Detail Type Nozzle Detail ID N2:6'' Sch 80 Dist. from "FROM" Node / Offset dist 194.92 cm Nozzle Diameter 6. in. Nozzle Schedule 80 Nozzle Class 150 Layout Angle 0. Blind Flange (Y/N) N Weight of Nozzle ( Used if > 0 ) 0.0000 kgf Grade of Attached Flange GR 1.1 Nozzle Matl SA-106 B



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Element From Node 30 Element To Node 40 Element Type Elliptical Description Top Head Distance "FROM" to "TO" 5.0800 cm Element Outside Diameter 933.00 mm Element Thickness 8.1000 mm Internal Corrosion Allowance 1.5000 mm Nominal Thickness 0.0000 mm External Corrosion Allowance 0.0000 mm Design Internal Pressure 11.031 kgf/cm² Design Temperature Internal Pressure 93 C Design External Pressure 1.0546 kgf/cm² Design Temperature External Pressure 93 C Effective Diameter Multiplier 1.2 Material Name SA-285 C Efficiency, Longitudinal Seam 0.75 Efficiency, Circumferential Seam 0.75 Elliptical Head Factor 2.

Element From Node 30 Detail Type Nozzle Detail ID N1:2'' Sch 40 Dist. from "FROM" Node / Offset dist 0.0000 mm Nozzle Diameter 2. in. Nozzle Schedule 40 Nozzle Class 150 Layout Angle 0. Blind Flange (Y/N) N Weight of Nozzle ( Used if > 0 ) 0.0000 kgf Grade of Attached Flange GR 1.1 Nozzle Matl SA-106 B


15

FileName : Scrubber (VA 1123)--------------------------------XY Coordinate Calculations STEP: 2 7:20a Nov 20,2013

XY Coordinate Calculations

| | | | | | From| To | X (Horiz.)| Y (Vert.) |DX (Horiz.)| DY (Vert.) | | | cm | cm | cm | cm |Bottom Hea| 0.00000 | 5.08000 | 0.00000 | 5.08000 | Shell| 0.00000 | 235.080 | 0.00000 | 230.000 | Top Head| 0.00000 | 240.160 | 0.00000 | 5.08000 |


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FileName : Scrubber (VA 1123)--------------------------------Internal Pressure Calculations STEP: 3 7:20a Nov 20,2013

Element Thickness, Pressure, Diameter and Allowable Stress :

| | Int. Press | Nominal | Total Corr| Element | Allowable | From| To | + Liq. Hd | Thickness | Allowance | Diameter | Stress(SE)| | | kgf/cm² | mm | mm | mm | kgf/cm² |Bottom Hea| 11.0591 | ... | 1.50000 | 933.000 | 827.865 | Shell| 11.0307 | ... | 1.50000 | 933.000 | 827.865 | Top Head| 11.0307 | ... | 1.50000 | 933.000 | 827.865 |

Element Required Thickness and MAWP :

| | Design | M.A.W.P. | M.A.P. | Actual | Required | From| To | Pressure | Corroded | New & Cold | Thickness | Thickness | | | kgf/cm² | kgf/cm² | kgf/cm² | mm | mm |Bottom Hea| 11.0307 | 12.3453 | 15.1158 | 8.38000 | 7.65774 | Shell| 11.0307 | 12.2819 | 14.9790 | 8.38000 | 7.68282 | Top Head| 11.0307 | 11.8636 | 14.6027 | 8.10000 | 7.64212 | Minimum 11.864 14.603

MAWP: 11.864 kgf/cm², limited by: Top Head.

Internal Pressure Calculation Results :

ASME Code, Section VIII, Division 1, 2007

Elliptical Head From 10 To 20 SA-285 C , UCS-66 Crv. A at 93 C

Bottom Head

Thickness Due to Internal Pressure [Tr]: = (P*D*K)/(2*S*E+2*P*(K-0.1)) per Appendix 1-4 (c) = (11.059*933.0000*1.00)/(2*1103.82*0.75+2*11.059*(1.00-0.1)) = 6.1577 + 1.5000 = 7.6577 mm

Max. All. Working Pressure at Given Thickness [MAWP]:Less Operating Hydrostatic Head Pressure of 0.028 kgf/cm² = (2*S*E*(T-CA))/(K*D-2*(T-CA)*(K-0.1)) per Appendix 1-4 (c) = (2*1103.82*0.75*(6.8800))/(1.00*933.0000-2*(6.8800)*(1.00-0.1)) = 12.374 - 0.028 = 12.345 kgf/cm²

Maximum Allowable Pressure, New and Cold [MAPNC]: = (2*SA*E*T)/(K*D-2*T*(K-0.1)) per Appendix 1-4 (c) = (2*1103.82*0.75*8.3800)/(1.00*933.0000-2*8.3800*(1.00-0.1)) = 15.116 kgf/cm²

Actual stress at given pressure and thickness [Sact]: = (P*(K*D-2*(T-Ca)*(K-0.1)))/(2*E*(T-Ca)) = (11.059*(1.00*933.0000-2*(6.8800)*(1.00-0.1)))/(2*0.75*(6.8800)) = 986.548 kgf/cm²

Required Thickness of Straight Flange = 7.699 mm

Percent Elongation per UCS-79 (75*tnom/Rf)*(1-Rf/Ro) 3.998 %

Min Metal Temp. w/o impact per UCS-66 -8 CMin Metal Temp. at Rqd thickness (UCS 66.1)[rat 0.72] -24 CMin Metal Temp. w/o impact per UG-20(f) -29 C

Cylindrical Shell From 20 To 30 SA-285 C , UCS-66 Crv. A at 93 C

Shell

Thickness Due to Internal Pressure [Tr]: = (P*D/2)/(S*E+0.4*P) per Appendix 1-1 (a)(1) = (11.031*933.0000/2)/(1103.82*0.75+0.4*11.031)

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= 6.1828 + 1.5000 = 7.6828 mm

Max. All. Working Pressure at Given Thickness [MAWP]: = (S*E*(T-Ca))/(D/2-0.4*(T-Ca)) per Appendix 1-1 (a)(1) = (1103.82*0.75*(6.8800))/(933.0000/2-0.4*6.8800) = 12.282 kgf/cm²

Maximum Allowable Pressure, New and Cold [MAPNC]: = (SA*E*T)/(D/2-0.4*T) per Appendix 1-1 (a)(1) = (1103.82*0.75*8.3800)/(933.0000/2-0.4*8.3800) = 14.979 kgf/cm²

Actual stress at given pressure and thickness [Sact]: = (P*(D/2-0.4*(T-Ca)))/(E*(T-Ca)) = (11.031*((933.0000/2-0.4*(6.8800)))/(0.75*(6.8800)) = 991.369 kgf/cm²



Elliptical Head From 30 To 40 SA-285 C , UCS-66 Crv. A at 93 C

Top Head

Thickness Due to Internal Pressure [Tr]: = (P*D*K)/(2*S*E+2*P*(K-0.1)) per Appendix 1-4 (c) = (11.031*933.0000*1.00)/(2*1103.82*0.75+2*11.031*(1.00-0.1)) = 6.1421 + 1.5000 = 7.6421 mm

Max. All. Working Pressure at Given Thickness [MAWP]: = (2*S*E*(T-CA))/(K*D-2*(T-CA)*(K-0.1)) per Appendix 1-4 (c) = (2*1103.82*0.75*(6.6000))/(1.00*933.0000-2*(6.6000)*(1.00-0.1)) = 11.864 kgf/cm²

Maximum Allowable Pressure, New and Cold [MAPNC]: = (2*SA*E*T)/(K*D-2*T*(K-0.1)) per Appendix 1-4 (c) = (2*1103.82*0.75*8.1000)/(1.00*933.0000-2*8.1000*(1.00-0.1)) = 14.603 kgf/cm²

Actual stress at given pressure and thickness [Sact]: = (P*(K*D-2*(T-Ca)*(K-0.1)))/(2*E*(T-Ca)) = (11.031*(1.00*933.0000-2*(6.6000)*(1.00-0.1)))/(2*0.75*(6.6000)) = 1026.323 kgf/cm²

Required Thickness of Straight Flange = 7.683 mm



MINIMUM METAL DESIGN TEMPERATURE RESULTS :

Minimum Metal Temp. w/o impact per UCS-66 -8. CMinimum Metal Temp. at Required thickness -22. C

Note: Heads and Shells Exempted to -20F (-29C) by paragraph UG-20F

Minimum Design Metal Temperature ( Entered by User ) -29. C

Hydrostatic Test Pressure Results:

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Pressure per UG99b = 1.3 * M.A.W.P. * Sa/S 15.423 kgf/cm²Pressure per UG99b[33] = 1.3 * Design Pres * Sa/S 14.340 kgf/cm²Pressure per UG99c = 1.3 * M.A.P. - Head(Hyd) 18.890 kgf/cm²Pressure per UG100 = 1.1 * M.A.W.P. * Sa/S 13.050 kgf/cm²

Horizontal Hydrotest performed in accordance with: UG-99c

Stresses on Elements due to Hydrostatic Test Pressure:

From To Stress Allowable Ratio PressureBottom Head 1386.3 1435.0 0.966 18.98Shell 1398.9 1435.0 0.975 18.98Top Head 1435.0 1435.0 1.000 18.98

Elements Suitable for Internal Pressure.


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FileName : Scrubber (VA 1123)--------------------------------External Pressure Calculations STEP: 4 7:20a Nov 20,2013

External Pressure Calculation Results :

ASME Code, Section VIII, Division 1, 2007

Elliptical Head From 10 to 20 Ext. Chart: CS-2 at 93 C

Bottom Head

Elastic Modulus from Chart: CS-2 at 149 C : 0.20389E+07 kgf/cm²

Results for Maximum Allowable External Pressure (MAEP): Tca OD D/t Factor A B 6.880 933.00 135.61 0.0010242 877.24EMAP = B/(K0*D/t) = 877.2415 /(0.9000 *135.6105 ) = 7.1876 kgf/cm²

Results for Required Thickness (Tca): Tca OD D/t Factor A B 2.416 933.00 386.22 0.0003596 366.60EMAP = B/(K0*D/t) = 366.6033 /(0.9000 *386.2226 ) = 1.0547 kgf/cm²

Cylindrical Shell From 20 to 30 Ext. Chart: CS-2 at 93 C

Shell


Results for Maximum Allowable External Pressure (MAEP): Tca OD SLEN D/t L/D Factor A B 6.880 933.00 2554.35 135.61 2.7378 0.0003050 310.92EMAP = (4*B)/(3*(D/t)) = (4*310.9169 )/(3*135.6105 ) = 3.0570 kgf/cm²

Results for Required Thickness (Tca): Tca OD SLEN D/t L/D Factor A B 4.500 933.00 2554.35 207.34 2.7378 0.0001609 164.01EMAP = (4*B)/(3*(D/t)) = (4*164.0066 )/(3*207.3433 ) = 1.0547 kgf/cm²

Results for Maximum Stiffened Length (Slen): Tca OD SLEN D/t L/D Factor A B 6.880 933.00 7335.41 135.61 7.8622 0.0001052 107.27EMAP = (4*B)/(3*(D/t)) = (4*107.2673 )/(3*135.6105 ) = 1.0547 kgf/cm²

Elliptical Head From 30 to 40 Ext. Chart: CS-2 at 93 C

Top Head


Results for Maximum Allowable External Pressure (MAEP): Tca OD D/t Factor A B 6.600 933.00 141.36 0.0009825 864.23EMAP = B/(K0*D/t) = 864.2315 /(0.9000 *141.3636 ) = 6.7928 kgf/cm²

Results for Required Thickness (Tca): Tca OD D/t Factor A B 2.416 933.00 386.22 0.0003596 366.60EMAP = B/(K0*D/t) = 366.6028 /(0.9000 *386.2232 ) = 1.0547 kgf/cm²

External Pressure Calculations

| | Section | Outside | Corroded | Factor | Factor | From| To | Length | Diameter | Thickness | A | B | | | cm | mm | mm | | kgf/cm² | 10| 20| No Calc | 933.000 | 6.88000 | 0.0010242 | 877.241 | 20| 30| 255.435 | 933.000 | 6.88000 | 0.00030498 | 310.917 | 30| 40| No Calc | 933.000 | 6.60000 | 0.00098249 | 864.232 |

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FileName : Scrubber (VA 1123)--------------------------------External Pressure Calculations STEP: 4 7:20a Nov 20,2013


| | External | External | External | External | From| To | Actual T. | Required T.|Des. Press. | M.A.W.P. | | | mm | mm | kgf/cm² | kgf/cm² | 10| 20| 8.38000 | 3.91571 | 1.05461 | 7.18759 | 20| 30| 8.38000 | 5.99978 | 1.05461 | 3.05696 | 30| 40| 8.10000 | 3.91570 | 1.05461 | 6.79282 | Minimum 3.057


| | Actual Len.| Allow. Len.| Ring Inertia | Ring Inertia | From| To | Bet. Stiff.| Bet. Stiff.| Required | Available | | | cm | cm | cm**4 | cm**4 | 10| 20| No Calc | No Calc | No Calc | No Calc | 20| 30| 255.435 | 733.541 | No Calc | No Calc | 30| 40| No Calc | No Calc | No Calc | No Calc |

Elements Suitable for External Pressure.


21

FileName : Scrubber (VA 1123)--------------------------------Element and Detail Weights STEP: 5 7:20a Nov 20,2013

Element and Detail Weights

| | Element | Element | Corroded | Corroded | Extra due | From| To | Metal Wgt. | ID Volume |Metal Wgt. | ID Volume | Misc % | | | kgm | cm³ | kgm | cm³ | kgm | 10| 20| 76.8545 | 134180. | 63.0978 | 135392. | 0.00000 | 20| 30| 438.567 | 1.516E+06 | 360.649 | 1.526E+06 | 0.00000 | 30| 40| 74.3288 | 134405. | 60.5642 | 135619. | 0.00000 |--------------------------------------------------------------------------- Total 589 1785063 484 1797435 0

Weight of Details

| | Weight of | X Offset, | Y Offset, | From|Type| Detail | Dtl. Cent. |Dtl. Cent. | Description | | kgm | cm | cm | 10|Liqd| 137.778 | 0.00000 | -11.6625 | LIQUID 10|Nozl| 3.38587 | 0.00000 | 1.90883 | N5:2'' Sch 40 10|Legs| 42.9371 | 0.00000 | -20.0000 | LEGS 20|Liqd| 0.00000 | 0.00000 | 10.0000 | LIQUID 20|Nozl| 15.2929 | 53.4320 | 194.920 | N2:6'' Sch 80 20|Nozl| 15.2929 | 53.4320 | 194.920 | N3:6'' Sch 80 20|Nozl| 56.3438 | 58.5120 | 54.9200 | N4:10'' Sch 80 30|Nozl| 3.38587 | 0.00000 | 1.91000 | N1:2'' Sch 40

Total Weight of Each Detail Type

Total Weight of Liquid 137.8Total Weight of Nozzles 93.7Total Weight of Legs 42.9---------------------------------------------------------------Sum of the Detail Weights 274.4 kgm

Weight Summary

Fabricated Wt. - Bare Weight W/O Removable Internals 726.4 kgmShop Test Wt. - Fabricated Weight + Water ( Full ) 2510.7 kgmShipping Wt. - Fab. Wt + Rem. Intls.+ Shipping App. 726.4 kgmErected Wt. - Fab. Wt + Rem. Intls.+ Insul. (etc) 726.4 kgmOpe. Wt. no Liq - Fab. Wt + Intls. + Details + Wghts. 726.4 kgmOperating Wt. - Empty Wt. + Operating Liquid (No CA) 864.2 kgmField Test Wt. - Empty Weight + Water (Full) 2510.7 kgmMass of the Upper 1/3 of the Vertical Vessel 212.1 kgm

Outside Surface Areas of Elements

| | Surface | From| To | Area | | | cm² | 10| 20| 10925.0 | 20| 30| 67415.4 | 30| 40| 10925.0 |--------------------------- Total 89265.398 cm²

Element and Detail Weights

| To | Total Ele.| Total. Ele.|Total. Ele.| Total Dtl.| Oper. Wgt. | From| To | Empty Wgt.| Oper. Wgt.|Hydro. Wgt.| Offset Mom.| No Liquid | | | kgm | kgm | kgm | kgf-m. | kgm | 10|Legs| 0.00000 | 0.00000 | 0.00000 | 0.00000 | 0.00000 | Legs| 20| 80.2404 | 218.018 | 214.360 | 0.00000 | 80.2404 | 20| 30| 525.497 | 525.497 | 2041.29 | 49.3106 | 525.497 | 30| 40| 77.7146 | 77.7146 | 212.060 | 0.00000 | 77.7146 |

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FileName : Scrubber (VA 1123)--------------------------------Element and Detail Weights STEP: 5 7:20a Nov 20,2013

Cumulative Vessel Weight

| | Cumulative Ope | Cumulative | Cumulative | From| To | Wgt. No Liquid | Oper. Wgt. | Hydro. Wgt. | | | kgm | kgm | kgm | 10|Legs| 0.00000 | 0.00000 | 0.00000 | Legs| 20| 683.452 | 821.229 | 2467.71 | 20| 30| 603.211 | 603.211 | 2253.35 | 30| 40| 77.7146 | 77.7146 | 212.060 |

Note: The cumulative operating weights no liquid in the column above are the cumulative operating weights minus the operating liquid weight minus any weights absent in the empty condition.

Cumulative Vessel Moment

| | Cumulative | Cumulative |Cumulative | From| To | Empty Mom. | Oper. Mom. |Hydro. Mom.| | | kgf-m. | kgf-m. | kgf-m. | 10|Legs| 0.00000 | 0.00000 | 0.00000 | Legs| 20| 49.3106 | 49.3106 | 49.3106 | 20| 30| 49.3106 | 49.3106 | 49.3106 | 30| 40| 0.00000 | 0.00000 | 0.00000 |


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FileName : Scrubber (VA 1123)--------------------------------Nozzle Flange MAWP STEP: 6 7:20a Nov 20,2013

Nozzle Flange MAWP Results :

ANSI Flange Pressure Rating for: N5:2'' Sch 4 : Class 150 : Grade GR 1.1Pressure Rating for B16.5 Flange at : 93 C is : 18.280 kgf/cm²Pressure Rating for B16.5 Flange at : 21 C is : 20.037 kgf/cm²

ANSI Flange Pressure Rating for: N4:10'' Sch : Class 300 : Grade GR 1.1Pressure Rating for B16.5 Flange at : 93 C is : 47.809 kgf/cm²Pressure Rating for B16.5 Flange at : 21 C is : 52.027 kgf/cm²

ANSI Flange Pressure Rating for: N1:2'' Sch 4 : Class 150 : Grade GR 1.1Pressure Rating for B16.5 Flange at : 93 C is : 18.280 kgf/cm²Pressure Rating for B16.5 Flange at : 21 C is : 20.037 kgf/cm²

Note: ANSI Ratings are per ANSI/ASME B16.5 2003 Edition

Lowest Flange Pressure Rating was (ope) : 18.280 kgf/cm²Lowest Flange Pressure Rating was (Amb) : 20.037 kgf/cm²


24

FileName : Scrubber (VA 1123)--------------------------------Natural Frequency Calculation STEP: 7 7:20a Nov 20,2013

The Natural Frequencies for the vessel have been computed iterativelyby solving a system of matrices. These matrices describe the massand the stiffness of the vessel. This is the generalized eigenvalue/eigenvector problem and is referenced in some mathematical texts.

The Natural Frequency for the Vessel (Empty.) is 56.8875 Hz.

The Natural Frequency for the Vessel (Ope...) is 56.8294 Hz.


25

FileName : Scrubber (VA 1123)--------------------------------Wind Load Calculation STEP: 8 7:20a Nov 20,2013

Wind Analysis Results

User Entered Importance Factor is 1.000Gust Factor (Gh, Gbar) Static 1.374Shape Factor (Cf) for the Vessel is 0.531User Entered Basic Wind Speed 112.7 km/hrExposure Category CTable Lookup Value Alpha from Table C6 7.0000Table Lookup Value Zg from Table C6 900.0000Table Lookup Value Do from Table C6 0.0050

Wind Load Results per ASCE-7 93:

Sample Calculation for the First Element:

Rougness Factor = 1.000

Values [cf1] and [cf2] Because RoughFact = 1 and DQZ > 2.5 and H/D < 7.0 Interpolating to find the final cf: Because H / D < 7.0 CF = CF1 + (CF2-CF1)*( H/D - 1) / (7 - 1) = 0.500 + (0.600 -0.500 )*( 2.884 - 1) / (7 - 1) = 0.531

Value of Alpha, Zg is taken from Table C6-2 [Alpha, Zg] For Exposure Category C: Alpha = 7.000 , Zg = 27432.000 cm

height of Interest for First Element [z] = Centroid Hgt + Base Height = 16.368 + 0.000 = 16.368 cm but: z = Max(457.200 , 16.368 ) = 457.200 cm

Note: Because z < 15 feet, use 15 feet to compute kz.

Velocity Pressure Coefficient [kZ]: = 2.58( z/zg )2/Alpha : z is Elevation of First Element = 2.58( 457.200 /900 )2/7.0

= 0.801

Determine if Static or Dynamic Gust Factor Applies Average Dia. = Total Wind Area / Vessel Height = 167.679 / 8.658 = 2.884 cm Vibration Frequency = 56.829 Hz Because H/D < 5 And Frequency > 1.0: Static Analysis Implemented

The following two calculations allow for any user units

Compute [tz] = 2.35 * Sqrt(DO / VesselHtg/30(feet)1/Alpha

= 2.35 * Sqrt(0.005 / 263.890 )1/914.400

= 0.198

Compute [Gh] = 0.65 + 3.65 * tz = 0.65 + 3.65 * 0.198 = 1.374

Wind Pressure - (performed in Imperial Units) [qz] Importance Factor: I = 1.000 Wind Speed = 112.651 km/hr Converts to 70.000 mph qz = 0.00256 * kZ * (I * Vr)² = 0.00256 * 0.801 *(1.000 * 70.000 )² = 10.046 psf Converts to: 49.051 kgf/m²

26


Force on the First Element [Fz] = qz * Gh * CF * Wind Area = 49.051 * 1.374 * 0.531 * 2656.642 = 9.517 kgf

Element z GH Area qz Force cm cm² kgf/m² kgf------------------------------------------------------------------------Bottom Head 16.4 1.374 2656.6 49.1 9.5Shell 143.0 1.374 25750.8 49.1 92.2Top Head 270.4 1.374 2655.4 49.1 9.5

Wind Vibration Calculations

This evaluation is based on work by Kanti Mahajan and Ed Zorilla

Nomenclature

Cf - Correction factor for natural frequency D - Average internal diameter of vessel cmDf - Damping Factor < 0.75 Unstable, > 0.95 StableDr - Average internal diameter of top half of vessel cm f - Natural frequency of vibration (Hertz)f1 - Natural frequency of bare vessel based on a unit value of (D/L²)(104) L - Total height of structure cmLc - Total length of conical section(s) of vessel cmtb - Uncorroded plate thickness at bottom of vessel mmV30 - Design Wind Speed provided by user km/hrVc - Critical wind velocity km/hrVw - Maximum wind speed at top of structure km/hrW - Total corroded weight of structure kgfWs - Cor. vessel weight excl. weight of parts which do not effect stiff. kgf Z - Maximum amplitude of vibration at top of vessel mmDl - Logarithmic decrement ( taken as 0.03 for Welded Structures )Vp - Vib. Chance, <= 0.320E-03 (High); 0.320E-03 < 0.400E-03 (Probable)P30 - wind pressure 30 feet above the base

Check other Conditions and Basic Assumptions:#1 - Total Cone Length / Total Length < 0.5 0.000 / 240.160 = 0.000

#2 - ( D / L² ) * 104 < 8.0 (English Units) - ( 3.06 / 7.88² ) * 104 = 493.055 [Geometry Violation]

Compute the vibration possibility. If Vp > 0.400E-03 no chance. [Vp]: = W / ( L * Dr²) = 758 / ( 240.16 * 91.926² ) = 0.000

Compute the damping factor Df which is a measure of instability [Df]: = W * Dl/ ( L * Dr² ) = 758 * 0.03 / ( 240.16 * 91.926² ) = 0.700

Compute the critical wind velocity [Vc]: = 3.4 * f * Dr = 3.4 * 56.829 * 91.926 = 937.809 km/hr

Compute the velocity at the top of the tower [Vw]: = V30 * ( L / ( 30 + BaseHeight ))0.143

= 112.65 * ( 240.16 / ( 30 + 0.0 ))^0.143 = 93.047 km/hr

Compute the maximum gust velocity using the gust response factor Gh [Vg]:

27


= Vw * Gh = 93.047 * 1.374 = 127.880 km/hr

Since Vc is greater than Vg the dynamic deflection Z, does notneed to be computed.


Wind Load Calculation

| | Wind | Wind | Wind | Height | Element | From| To | Height | Diameter | Area | Factor | Wind Load | | | cm | cm | cm² | kgf/m² | kgf | 10| 20| 16.3679 | 111.960 | 2656.64 | 49.0511 | 9.51700 | 20| 30| 142.986 | 111.960 | 25750.8 | 49.0511 | 92.2482 | 30| 40| 270.436 | 111.960 | 2655.41 | 49.0511 | 9.51260 |


28

FileName : Scrubber (VA 1123)--------------------------------Earthquake Load Calculation STEP: 9 7:20a Nov 20,2013

Earthquake Analysis Results

The UBC Zone Factor for the Vessel is ............. 0.0000The Importance Factor as Specified by the User is . 1.000The UBC Frequency and Soil Factor (C) is ......... 2.750The UBC Force Factor as Specified by the User is .. 3.000The UBC Total Weight (W) for the Vessel is ........ 821.2 kgfThe UBC Total Shear (V) for the Vessel is ......... 0.0 kgfThe UBC Top Shear (Ft) for the Vessel is .......... 0.0 kgf


Earthquake Load Calculation

| | Earthquake | Earthquake | Element | Element | From| To | Height | Weight | Ope Load | Emp Load | | | cm | kgf | kgf | kgf | 10|Legs| 5.08000 | 0.00000 | 0.00000 | 0.00000 | Legs| 20| 5.08000 | 218.018 | 0.00000 | 0.00000 | 20| 30| 120.080 | 525.497 | 0.00000 | 0.00000 | 30| 40| 237.620 | 77.7146 | 0.00000 | 0.00000 |Top Load 303.08 0 0


29

FileName : Scrubber (VA 1123)--------------------------------Wind/Earthquake Shear, Bending STEP: 10 7:20a Nov 20,2013

The following table is for the Operating Case.

Wind/Earthquake Shear, Bending

| | Distance to| Cummulative|Earthquake | Wind | Earthquake | From| To | Support| Wind Shear| Shear | Bending | Bending | | | cm | kgf | kgf | kgf-m. | kgf-m. | 10|Legs| 0.00000 | -111.278 | 0.00000 | 0.00000 | 0.00000 | Legs| 20| 2.54000 | 111.278 | 0.00000 | 134.077 | 0.00000 | 20| 30| 120.080 | 101.761 | 0.00000 | 128.666 | 0.00000 | 30| 40| 242.450 | 9.51260 | 0.00000 | 0.70109 | 0.00000 |


30

FileName : Scrubber (VA 1123)--------------------------------Wind Deflection STEP: 11 7:20a Nov 20,2013

Wind Deflection Calculations:

The following table is for the Operating Case.

Wind Deflection

| | Cumulative | Centroid | Elem. End | Elem. Ang. | From| To | Wind Shear | Deflection |Deflection | Rotation | | | kgf | mm | mm | | 10|Legs| -111.278 | 0.0023031 | 0.0023031 | 0.00001 | Legs| 20| 111.278 | 0.0023041 | 0.0023070 | 0.00001 | 20| 30| 101.761 | 0.0039103 | 0.0068074 | 0.00001 | 30| 40| 9.51260 | 0.0068743 | 0.0069412 | 0.00001 |

Critical Wind Velocity for Tower Vibration

| | 1st Crit. | 2nd Crit. | From| To | Wind Speed | Wind Speed | | | km/hr | km/hr | 10| 20| 1142.19 | 7138.67 | 20| 30| 1142.19 | 7138.67 | 30| 40| 1142.19 | 7138.67 |

Allowable deflection at the Tower Top (Ope)( 6.000"/100ft. Criteria)Allowable deflection : 12.008 Actual Deflection : 0.007 mm


31

FileName : Scrubber (VA 1123)--------------------------------Longitudinal Stress Constants STEP: 12 7:20a Nov 20,2013

Longitudinal Stress Constants

| | Metal Area | Metal Area |New & Cold | Corroded | From| To | New & Cold | Corroded |Sect. Mod. | Sect. Mod. | | | cm² | cm² | mm ³ | mm ³ | 10| 20| 243.421 | 200.173 | 5.577E+06 | 4.601E+06 | 20| 30| 243.421 | 200.173 | 5.577E+06 | 4.601E+06 | 30| 40| 235.358 | 192.084 | 5.395E+06 | 4.417E+06 |


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FileName : Scrubber (VA 1123)--------------------------------Longitudinal Allowable Stresses STEP: 13 7:20a Nov 20,2013

Longitudinal Allowable Stresses

| | All. Str. | All. Str. | All. Str. | All. Str. | From| To | Long. Ten. | Hydr. Ten. |Long. Com. | Hyr. Comp. | | | kgf/cm² | kgf/cm² | kgf/cm² | kgf/cm² | 10|Legs| 993.438 | 1434.97 | -1246.66 | -1625.61 | Legs| 20| 993.438 | 1434.97 | -1246.66 | -1625.61 | 20| 30| 993.438 | 1434.97 | -1246.66 | -1625.61 | 30| 40| 993.438 | 1434.97 | -1234.60 | -1614.52 |


33

FileName : Scrubber (VA 1123)--------------------------------Longitudinal Stresses Due to . . . STEP: 14 7:20a Nov 20,2013

Longitudinal Stress Report

Note: Longitudinal Operating and Empty Stresses are computed in the corroded condition. Stresses due to loads in the hydrostatic test cases have been computed in the new and cold condition.

Longitudinal Stresses Due to . . .

| | Long. Str. | Long. Str. |Long. Str. | From| To | Int. Pres. | Ext. Pres. |Hyd. Pres. | | | kgf/cm² | kgf/cm² | kgf/cm² | 10| 20| 366.248 | -36.0194 | 512.571 | 20| 30| 366.248 | -36.0194 | 512.571 | 30| 40| 382.113 | -37.5363 | 530.746 |


| | Wght. Str. | Wght. Str. |Wght. Str. | Wght. Str. | Wght. Str. | From| To | Empty | Operating |Hydrotest | Emp. Mom. | Opr. Mom. | | | kgf/cm² | kgf/cm² | kgf/cm² | kgf/cm² | kgf/cm² | 10|Legs| 0.00000 | 0.00000 | 0.00000 | 0.00000 | 0.00000 | Legs| 20| -3.41431 | -4.10260 | 0.00000 | 1.07181 | 1.07181 | 20| 30| -3.01345 | -3.01345 | 0.00000 | 1.07181 | 1.07181 | 30| 40| -0.40459 | -0.40459 | 0.00000 | 0.00000 | 0.00000 |


| | Wght. Str. | Bend. Str. |Bend. Str. | Bend. Str. | Bend. Str. | From| To | Hyd. Mom. | Oper. Wind |Oper. Equ. | Hyd. Wind | Hyd. Equ. | | | kgf/cm² | kgf/cm² | kgf/cm² | kgf/cm² | kgf/cm² | 10|Legs| 0.00000 | 0.00000 | 0.00000 | 0.00000 | 0.00000 | Legs| 20| 0.00000 | 2.91428 | 0.00000 | 0.00000 | 0.00000 | 20| 30| 0.00000 | 2.79666 | 0.00000 | 0.00000 | 0.00000 | 30| 40| 0.00000 | 0.015871 | 0.00000 | 0.00000 | 0.00000 |


| | Long. Str. | Long. Str. |Long. Str. | EarthQuake | From| To | Vortex Ope.| Vortex Emp.|Vortex Tst.| Empty | | | kgf/cm² | kgf/cm² | kgf/cm² | kgf/cm² | 10|Legs| 0.00000 | 0.00000 | 0.00000 | 0.00000 | Legs| 20| 0.00000 | 0.00000 | 0.00000 | 0.00000 | 20| 30| 0.00000 | 0.00000 | 0.00000 | 0.00000 | 30| 40| 0.00000 | 0.00000 | 0.00000 | 0.00000 |


| | Long. Str. | Long. Str. | From| To | Y Forces W | Y ForceS S | | | kgf/cm² | kgf/cm² | 10|Legs| 0.00000 | 0.00000 | Legs| 20| 0.00000 | 0.00000 | 20| 30| 0.00000 | 0.00000 | 30| 40| 0.00000 | 0.00000 |

Long. Stresses due to User Forces and Moments

| |Wind For/Mom| Eqk For/Mom|Wnd For/Mom| Eqk For/Mom| From| To | Corroded | Corroded | No Corr. | No Corr. | | | kgf/cm² | kgf/cm² | kgf/cm² | kgf/cm² | 10|Legs| 0.00000 | 0.00000 | 0.00000 | 0.00000 | Legs| 20| 0.00000 | 0.00000 | 0.00000 | 0.00000 | 20| 30| 0.00000 | 0.00000 | 0.00000 | 0.00000 | 30| 40| 0.00000 | 0.00000 | 0.00000 | 0.00000 |

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FileName : Scrubber (VA 1123)--------------------------------Longitudinal Stresses Due to . . . STEP: 14 7:20a Nov 20,2013


35

FileName : Scrubber (VA 1123)--------------------------------Stress due to Combined Loads STEP: 15 7:20a Nov 20,2013

Stress Combination Load Cases for Vertical Vessels:

Load Case Definition Key

IP = Longitudinal Stress due to Internal PressureEP = Longitudinal Stress due to External PressureHP = Longitudinal Stress due to Hydrotest PressureNP = No PressureEW = Longitudinal Stress due to Weight (No Liquid)OW = Longitudinal Stress due to Weight (Operating)HW = Longitudinal Stress due to Weight (Hydrotest)WI = Bending Stress due to Wind Moment (Operating)EQ = Bending Stress due to Earthquake Moment (Operating)EE = Bending Stress due to Earthquake Moment (Empty)HI = Bending Stress due to Wind Moment (Hydrotest)HE = Bending Stress due to Earthquake Moment (Hydrotest)WE = Bending Stress due to Wind Moment (Empty) (no CA)WF = Bending Stress due to Wind Moment (Filled) (no CA)CW = Longitudinal Stress due to Weight (Empty) (no CA)VO = Bending Stress due to Vortex Shedding Loads ( Ope )VE = Bending Stress due to Vortex Shedding Loads ( Emp )VF = Bending Stress due to Vortex Shedding Loads ( Test No CA. )FW = Axial Stress due to Vertical Forces for the Wind CaseFS = Axial Stress due to Vertical Forces for the Seismic CaseBW = Bending Stress due to Lat. Forces for the Wind Case, CorrodedBS = Bending Stress due to Lat. Forces for the Seismic Case, CorrodedBN = Bending Stress due to Lat. Forces for the Wind Case, UnCorrodedBU = Bending Stress due to Lat. Forces for the Seismic Case, UnCorroded

General Notes:

Case types HI and HE are in the Un-Corroded condition.

Case types WE, WF, and CW are in the Un-Corroded condition.

A blank stress and stress ratio indicates that the correspondingstress comprising those components that did not contribute to thattype of stress.

An asterisk (*) in the final column denotes overstress.

Analysis of Load Case 1 : NP+EW+WI+FW+BWFrom Tensile All. Tens. Comp. All. Comp. Tens. Comp.Node Stress Stress Stress Stress Ratio Ratio 10 0.00 993.44 0.00 -1246.66 0.0000 0.0000 10 0.57 993.44 -7.40 -1246.66 0.0006 0.0059 20 0.86 993.44 -6.88 -1246.66 0.0009 0.0055 30 993.44 -0.42 -1234.60 0.0003

Analysis of Load Case 2 : NP+EW+EE+FS+BSFrom Tensile All. Tens. Comp. All. Comp. Tens. Comp.Node Stress Stress Stress Stress Ratio Ratio 10 0.00 993.44 0.00 -1246.66 0.0000 0.0000 10 993.44 -4.49 -1246.66 0.0036 20 993.44 -4.09 -1246.66 0.0033 30 993.44 -0.40 -1234.60 0.0003

Analysis of Load Case 3 : NP+OW+WI+FW+BWFrom Tensile All. Tens. Comp. All. Comp. Tens. Comp.Node Stress Stress Stress Stress Ratio Ratio 10 0.00 993.44 0.00 -1246.66 0.0000 0.0000 10 993.44 -8.09 -1246.66 0.0065 20 0.86 993.44 -6.88 -1246.66 0.0009 0.0055 30 993.44 -0.42 -1234.60 0.0003

36


Analysis of Load Case 4 : NP+OW+EQ+FS+BSFrom Tensile All. Tens. Comp. All. Comp. Tens. Comp.Node Stress Stress Stress Stress Ratio Ratio 10 0.00 993.44 0.00 -1246.66 0.0000 0.0000 10 993.44 -5.17 -1246.66 0.0042 20 993.44 -4.09 -1246.66 0.0033 30 993.44 -0.40 -1234.60 0.0003

Analysis of Load Case 5 : NP+HW+HIFrom Tensile All. Tens. Comp. All. Comp. Tens. Comp.Node Stress Stress Stress Stress Ratio Ratio 10 0.00 993.44 0.00 -1246.66 0.0000 0.0000 10 0.00 993.44 0.00 -1246.66 0.0000 0.0000 20 0.00 993.44 0.00 -1246.66 0.0000 0.0000 30 0.00 993.44 0.00 -1234.60 0.0000 0.0000

Analysis of Load Case 6 : NP+HW+HEFrom Tensile All. Tens. Comp. All. Comp. Tens. Comp.Node Stress Stress Stress Stress Ratio Ratio 10 0.00 993.44 0.00 -1246.66 0.0000 0.0000 10 0.00 993.44 0.00 -1246.66 0.0000 0.0000 20 0.00 993.44 0.00 -1246.66 0.0000 0.0000 30 0.00 993.44 0.00 -1234.60 0.0000 0.0000

Analysis of Load Case 7 : IP+OW+WI+FW+BWFrom Tensile All. Tens. Comp. All. Comp. Tens. Comp.Node Stress Stress Stress Stress Ratio Ratio 10 366.25 993.44 -1246.66 0.3687 10 366.13 993.44 -1246.66 0.3685 20 382.97 993.44 -1246.66 0.3855 30 993.44 -0.42 -1234.60 0.0003

Analysis of Load Case 8 : IP+OW+EQ+FS+BSFrom Tensile All. Tens. Comp. All. Comp. Tens. Comp.Node Stress Stress Stress Stress Ratio Ratio 10 366.25 993.44 -1246.66 0.3687 10 363.22 993.44 -1246.66 0.3656 20 380.17 993.44 -1246.66 0.3827 30 993.44 -0.40 -1234.60 0.0003

Analysis of Load Case 9 : EP+OW+WI+FW+BWFrom Tensile All. Tens. Comp. All. Comp. Tens. Comp.Node Stress Stress Stress Stress Ratio Ratio 10 993.44 -36.02 -1246.66 0.0289 10 993.44 -44.11 -1246.66 0.0354 20 993.44 -44.42 -1246.66 0.0356 30 993.44 -0.42 -1234.60 0.0003

Analysis of Load Case 10 : EP+OW+EQ+FS+BSFrom Tensile All. Tens. Comp. All. Comp. Tens. Comp.Node Stress Stress Stress Stress Ratio Ratio 10 993.44 -36.02 -1246.66 0.0289 10 993.44 -41.19 -1246.66 0.0330 20 993.44 -41.62 -1246.66 0.0334 30 993.44 -0.40 -1234.60 0.0003

Analysis of Load Case 11 : HP+HW+HIFrom Tensile All. Tens. Comp. All. Comp. Tens. Comp.Node Stress Stress Stress Stress Ratio Ratio 10 512.57 1434.97 -1625.61 0.3572 10 512.57 1434.97 -1625.61 0.3572 20 530.75 1434.97 -1625.61 0.3699 30 0.00 1434.97 0.00 -1614.52 0.0000 0.0000

Analysis of Load Case 12 : HP+HW+HE

37


From Tensile All. Tens. Comp. All. Comp. Tens. Comp.Node Stress Stress Stress Stress Ratio Ratio 10 512.57 1434.97 -1625.61 0.3572 10 512.57 1434.97 -1625.61 0.3572 20 530.75 1434.97 -1625.61 0.3699 30 0.00 1434.97 0.00 -1614.52 0.0000 0.0000

Analysis of Load Case 13 : IP+WE+EWFrom Tensile All. Tens. Comp. All. Comp. Tens. Comp.Node Stress Stress Stress Stress Ratio Ratio 10 366.25 993.44 -1246.66 0.3687 10 363.91 993.44 -1246.66 0.3663 20 380.17 993.44 -1246.66 0.3827 30 993.44 -0.40 -1234.60 0.0003

Analysis of Load Case 14 : IP+WF+CWFrom Tensile All. Tens. Comp. All. Comp. Tens. Comp.Node Stress Stress Stress Stress Ratio Ratio 10 366.25 993.44 -1246.66 0.3687 10 362.87 993.44 -1246.66 0.3653 20 379.64 993.44 -1246.66 0.3821 30 993.44 -0.33 -1234.60 0.0003

Analysis of Load Case 15 : IP+VO+OWFrom Tensile All. Tens. Comp. All. Comp. Tens. Comp.Node Stress Stress Stress Stress Ratio Ratio 10 366.25 993.44 -1246.66 0.3687 10 363.22 993.44 -1246.66 0.3656 20 380.17 993.44 -1246.66 0.3827 30 993.44 -0.40 -1234.60 0.0003

Analysis of Load Case 16 : IP+VE+OWFrom Tensile All. Tens. Comp. All. Comp. Tens. Comp.Node Stress Stress Stress Stress Ratio Ratio 10 366.25 993.44 -1246.66 0.3687 10 363.22 993.44 -1246.66 0.3656 20 380.17 993.44 -1246.66 0.3827 30 993.44 -0.40 -1234.60 0.0003

Analysis of Load Case 17 : IP+VF+CWFrom Tensile All. Tens. Comp. All. Comp. Tens. Comp.Node Stress Stress Stress Stress Ratio Ratio 10 366.25 1434.97 -1625.61 0.2552 10 362.87 1434.97 -1625.61 0.2529 20 379.64 1434.97 -1625.61 0.2646 30 1434.97 -0.33 -1614.52 0.0002

Analysis of Load Case 18 : FS+BS+IP+OWFrom Tensile All. Tens. Comp. All. Comp. Tens. Comp.Node Stress Stress Stress Stress Ratio Ratio 10 366.25 827.86 -1038.88 0.4424 10 363.22 827.86 -1038.88 0.4387 20 380.17 827.86 -1038.88 0.4592 30 827.86 -0.40 -1028.83 0.0004

Analysis of Load Case 19 : FS+BS+EP+OWFrom Tensile All. Tens. Comp. All. Comp. Tens. Comp.Node Stress Stress Stress Stress Ratio Ratio 10 827.86 -36.02 -1038.88 0.0347 10 827.86 -41.19 -1038.88 0.0397 20 827.86 -41.62 -1038.88 0.0401 30 827.86 -0.40 -1028.83 0.0004

Absolute Maximum of the all of the Stress Ratio's 0.4592

Governing Element: Shell

38


Governing Load Case 18 : FS+BS+IP+OW


39

FileName : Scrubber (VA 1123)--------------------------------Center of Gravity Calculation STEP: 16 7:20a Nov 20,2013

Shop/Field Installation Options :

Note : The CG is computed from the first Element From Node

Center of Gravity of Liquid -11.7 cmCenter of Gravity of Nozzles 110.0 cmCenter of Gravity of Legs -20.0 cm

Center of Gravity of Bare Shell New and Cold 120.2 cmCenter of Gravity of Bare Shell Corroded 120.1 cm

Vessel CG in the Operating Condition 87.0 cmVessel CG in the Fabricated (Shop/Empty) Condition 110.6 cm


40

FileName : Scrubber (VA 1123)--------------------------------Leg Check, (Operating Case) STEP: 17 7:20a Nov 20,2013

RESULTS FOR LEGS : Operating Case Description: LEGS

Legs attached to: Bottom Head

Section Properties : I Beam W8X24

USA AISC 1989 Steel Table

Leg Length from Attachment to Base Leglen 40.000 cmDistance Leg Up Side of Vessel 0.000 cmNumber of Legs Nleg 3Cross Sectional Area for W8X24 Aleg 45.677 cm²Section Inertia ( strong axis ) 3446.396 cm**4Section Inertia ( weak axis ) 761.703 cm**4Section Modulus ( strong axis ) 342489.594 mm ³Section Modulus ( weak axis ) 92259.164 mm ³Radius of Gyration ( strong axis ) 86.868 mmRadius of Gyration ( weak axis ) 40.894 mm

Leg Orientation - Strong Axis

Overturning Moment at top of Legs 134.1 kgf-m.Total Weight Load at top of Legs W 821.2 kgfTotal Shear force at top of Legs 111.3 kgfAdditional force in Leg due to Bracing Fadd 0.0 kgfOccasional Load Factor Occfac 1.333Effective Leg End Condition Factor k 1.000

Note: The Legs are Not Cross Braced The Leg Shear Force includes Wind and Seismic Effects

Maximum Shear at top of one Leg [Vleg]: = ( Max(Wind, Seismic) + Fadd ) * ( Imax / Itot ) = ( 111.3 + 0.0 ) * ( 3446.8 / 4974.58 ) = 77.10 kgf

Axial Compression, Leg futhest from N.A. [Sma] = ((W/Nleg)+(Mleg/(Nlegm*Rn)))/Aleg) = ((821 / 3 ) + (134 /( 1 * 56.71 )))/ 45.677 ) = 11.17 kgf/cm²

Axial Compression, Leg closest to N.A. [Sva] = ( W / Nleg ) / Aleg = ( 821 / 3 ) / 45.677 = 5.99 kgf/cm²

Allowable Comp. for the Selected Leg (KL/r < Cc ) [Sa]: = Occfac * ( 1-(kl/r)²/(2*Cc²))*Fy / ( 5/3+3*(Kl/r)/(8*Cc)-(Kl/r³)/(8*Cc³) = 1.33 * ( 1-( 9.78 )²/(2 * 127.18² )) * 2531 / ( 5/3+3*( 9.78 )/(8* 127.18 )-( 9.78³)/(8* 127.18³) = 1984.08 kgf/cm²

Bending at the Bottom of the Leg closest to the N.A. [S]: = ( Vleg * Leglen * 12 / Smdsa ) = ( 77.10 * 40.00 * 12 / 342489.59 ) = 9.01 kgf/cm²

Allowable Bending Stress[Sa]: = ( 0.6 * Fy * Occfac ) = ( 0.6 * 2531 * 1.33 ) = 2024.33 kgf/cm²

AISC Unity Check [Sc]( must be < or = to 1.00 ) : = (Sma/Sa)+(0.85*S)/((1-Sma/Spex)*Sb)

41

FileName : Scrubber (VA 1123)--------------------------------Leg Check, (Operating Case) STEP: 17 7:20a Nov 20,2013

= (11 /1984 )+( 0.85 *9.005 )/(( 1 -11 /148800 ) *2024 ) = 0.0094


42

FileName : Scrubber (VA 1123)--------------------------------Nozzle Calcs. N5:2'' Sch 40 NOZL: 1 7:20a Nov 20,2013

INPUT VALUES, Nozzle Description: N5:2'' Sch 40 From : 10

Pressure for Nozzle Reinforcement Calculations P 11.059 kgf/cm²Temperature for Internal Pressure Temp 93 CDesign External Pressure Pext 1.05 kgf/cm²Temperature for External Pressure Tempex 93 C

Shell Material SA-285 CShell Allowable Stress at Temperature S 1103.82 kgf/cm²Shell Allowable Stress At Ambient Sa 1103.82 kgf/cm²

Inside Diameter of Elliptical Head D 916.2400 mmAspect Ratio of Elliptical Head Ar 2.00Head Actual Thickness T 8.3800 mmHead Internal Corrosion Allowance Cas 1.5000 mmHead External Corrosion Allowance Caext 0.0000 mm

Distance from Head Centerline L1 0.0000 mm

User Entered Minimum Design Metal Temperature -28.89 C

Nozzle Material SA-106 BNozzle Allowable Stress at Temperature Sn 1202.25 kgf/cm²Nozzle Allowable Stress At Ambient Sna 1202.25 kgf/cm²

Nozzle Diameter Basis (for tr calc only) Inbase ODLayout Angle 0.00 degNozzle Diameter Dia 2.0000 in.

Nozzle Size and Thickness Basis Idbn ActualActual Thickness of Nozzle Thk 5.0000 mm

Nozzle Flange Material SA-105Nozzle Flange Type Weld Neck Flange

Nozzle Corrosion Allowance Can 1.5000 mmJoint Efficiency of Shell Seam at Nozzle Es 1.00Joint Efficiency of Nozzle Neck En 1.00

Nozzle Outside Projection Ho 152.4000 mmWeld leg size between Nozzle and Pad/Shell Wo 9.5250 mmGroove weld depth between Nozzle and Vessel Wgnv 8.1000 mmNozzle Inside Projection H 0.0000 mmWeld leg size, Inside Nozzle to Shell Wi 0.0000 mmASME Code Weld Type per UW-16 None

Class of attached Flange 150Grade of attached Flange GR 1.1

The Pressure Design option was Design Pressure + static head

Nozzle Sketch

| | | | | | | | ____________/| || \ | || \ | ||____________\|__|

Insert Nozzle No Pad, no Inside projection

NOZZLE CALCULATION, Description: N5:2'' Sch 40

43


ASME Code, Section VIII, Division 1, 2007, UG-37 to UG-45

Actual Nozzle Outside Diameter Used in Calculation 2.000 in.Actual Nozzle Thickness Used in Calculation 0.197 in.

Nozzle input data check completed without errors.

Reqd thk per UG-37(a)of Elliptical Head, Tr [Int. Press] = (P*(K*(D+2*CA)))/(2*S*E-0.2*P) per UG-37(a)(3) = (11.06*(0.90*(916.2400+2*1.5000)))/(2 *1103*1.00-0.2*11.06) = 4.1486 mm

Reqd thk per UG-37(a)of Nozzle Wall, Trn [Int. Press] = (P*D/2)/(S*E+0.4*P) per Appendix 1-1 (a)(1) = (11.06*50.8000/2.0)/(1202*1.00+0.4*11.06) = 0.2328 mm

Reqd Nozzle thickness under External Pressure : 0.2542 mm

UG-40, Thickness and Diameter Limit Results : [Int. Press]Effective material diameter limit, Dl 87.6000 mmEffective material thickness limit, no pad Tlnp 8.7500 mm

Note: Taking a UG-36(c)(3)(a) exemption for N5:2'' Sch 40 . This calculation is valid for nozzles that meet all the requirements of paragraph UG-36. Please check the Code carefully, especially for nozzles that are not isolated or do not meet Code spacing requirements. It may be necessary to force the program to print the areas per UG-37.

UG-45 Minimum Nozzle Neck Thickness Requirement: [Int. Press.]Wall Thickness per UG45(a), tra = 1.7542 mmWall Thickness per UG16(b), tr16b = 3.0875 mmWall Thickness per UG45(b)(1), trb1 = 6.1095 mmWall Thickness per UG45(b)(2), trb2 = 1.9392 mmWall Thickness per UG45(b)(3), trb3 = Max(trb1, trb2, tr16b) = 6.1095 mmStd. Wall Pipe per UG45(b)(4), trb4 = 4.9226 mmWall Thickness per UG45(b), trb = Min(trb3, trb4) = 4.9226 mm

Final Required Thickness, tr45 = Max(tra, trb) = 4.9226 mmAvailable Nozzle Neck Thickness = 5.0000 mm --> OK

Minimum Design Metal Temperature (Nozzle Neck), Curve: BMinimum Temp. w/o impact per UCS-66 -29 CMinimum Temp. at required thickness -104 C

Nozzle MDMT Thickness Calc. per UCS-66 (a)1(b), MIN(tn,t,te), Curve: BMinimum Temp. w/o impact per UCS-66 -29 CMinimum Temp. at required thickness -104 CMinimum Temp. w/o impact per UG-20(f) -29 C

ANSI Flange MDMT including temperature reduction per UCS-66.1:ANSI Flange MDMT with Temperature reduction -48 C

Weld Size Calculations, Description: N5:2'' Sch 40

Intermediate Calc. for nozzle/shell Welds Tmin 3.5000 mm

Results Per UW-16.1: Required Thickness Actual ThicknessNozzle Weld 2.4500 = 0.7 * TMIN 6.7342 = 0.7 * Wo mm

NOTE : Skipping the nozzle attachment weld strength calculations. Per UW-15(b)(2) the nozzles exempted by UG-36(c)(3)(a) (small nozzles) do not require a weld strength check.

44


The Drop for this Nozzle is : 0.3882 mmThe Cut Length for this Nozzle is, Drop + Ho + H + T : 161.1682 mm


45





Inside Diameter of Cylindrical Shell D 916.2400 mmDesign Length of Section L 2554.3533 mmShell Actual Thickness T 8.3800 mmShell Internal Corrosion Allowance Cas 1.5000 mmShell External Corrosion Allowance Caext 0.0000 mm

Distance from Bottom/Left Tangent 200.0000 cm



Nozzle Diameter Basis (for tr calc only) Inbase IDLayout Angle 0.00 degNozzle Diameter Dia 6.0000 in.

Nozzle Size and Thickness Basis Idbn NominalNominal Thickness of Nozzle Thknom 80



Nozzle Outside Projection Ho 152.4000 mmWeld leg size between Nozzle and Pad/Shell Wo 9.5250 mmGroove weld depth between Nozzle and Vessel Wgnv 8.3800 mmASME Code Weld Type per UW-16 None



Nozzle Sketch

| | | | | | | | | | |\ | __________/|_\| | | | | |______________|

Abutting Nozzle No Pad


46



Actual Nozzle Inside Diameter Used in Calculation 5.761 in.Actual Nozzle Thickness Used in Calculation 0.432 in.


Reqd thk per UG-37(a)of Cylindrical Shell, Tr [Int. Press] = (P*(D/2+CA))/(S*E-0.6*P) per UG-27 (c)(1) = (11.03*(916.2400/2+1.5000))/(1103*1.00-0.6*11.03) = 4.6208 mm

Reqd thk per UG-37(a)of Nozzle Wall, Trn [Int. Press] = (P*(D/2+CA))/(S*E-0.6*P) per UG-27 (c)(1) = (11.03*(146.3294/2+1.5000))/(1202*1.00-0.6*11.03) = 0.6888 mm



Results of Nozzle Reinforcement Area Calculations:AREA AVAILABLE, A1 to A5 Design External MapncArea Required Ar 6.900 3.360 NA cm²Area in Shell A1 3.374 3.554 NA cm²Area in Nozzle Wall A2 3.022 3.080 NA cm²Area in Inward Nozzle A3 0.000 0.000 NA cm²Area in Welds A4 0.907 0.907 NA cm²Area in Pad A5 0.000 0.000 NA cm²TOTAL AREA AVAILABLE Atot 7.303 7.542 NA cm²

The Internal Pressure Case Governs the Analysis.

Nozzle Angle Used in Area Calculations 90.00 Degs.

The area available without a pad is Sufficient.

Reinforcement Area Required for Nozzle [Ar]: = (Dlr*Tr+2*Thk*Tr*(1-fr1)) UG-37(c) = (149.3294*4.6208+2*(10.9728-1.5000)*4.6208*(1-1.0000)) = 6.900 cm²

Areas per UG-37.1 but with DL = Diameter Limit, DLR = Corroded ID:

Area Available in Shell [A1]: = (DL-Dlr)*(ES*(T-Cas)-Tr)-2*(Thk-Can)*(ES*(T-Cas)-Tr)*(1-fr1) = (298.659-149.329)*(1.00*(8.3800-1.500)-4.621)-2*(10.973-1.500) *(1.00*(8.3800-1.5000)-4.6208)*(1-1.0000) = 3.374 cm²

Area Available in Nozzle Wall, no Pad [A2np]: = ( 2 * min(Tlnp,ho) ) * ( Thk - Can - Trn ) * fr2 = ( 2 * min(17.20 ,152.40 ) ) * ( 10.97 - 1.50 - 0.69 ) * 1.0000 ) = 3.022 cm²

Area Available in Welds, no Pad [A4np]: = Wo² * fr2 + ( Wi-Can/0.707 )² * fr2 = 9.5250² * 1.0000 + ( 0.0000 )² * 1.0000 = 0.907 cm²

UG-45 Minimum Nozzle Neck Thickness Requirement: [Int. Press.]Wall Thickness per UG45(a), tra = 2.1888 mmWall Thickness per UG16(b), tr16b = 3.0875 mm

47


Wall Thickness per UG45(b)(1), trb1 = 6.1208 mmWall Thickness per UG45(b)(2), trb2 = 1.9394 mmWall Thickness per UG45(b)(3), trb3 = Max(trb1, trb2, tr16b) = 6.1208 mmStd. Wall Pipe per UG45(b)(4), trb4 = 7.7230 mmWall Thickness per UG45(b), trb = Min(trb3, trb4) = 6.1208 mm

Final Required Thickness, tr45 = Max(tra, trb) = 6.1208 mmAvailable Nozzle Neck Thickness = .875 * 10.9728 = 9.6012 mm --> OK

M.A.W.P. Results for this Nozzle (Based on Areas) at this LocationApproximate M.A.W.P. for given geometry 11.347 kgf/cm²Nozzle is O.K. for the External Pressure 1.055 kgf/cm²







Weld Strength and Weld Loads per UG-41.1, Sketch (a) or (b)Weld Load [W]: = ( Ar - A1 )* S = ( 6.9002 - 3.3737 ) * 1103 = 3892.63 kgf

Weld Load [W1]: = (A2+A5+A4-(Wi-Can/.707)²*Ffr2)*S = ( 3.0217 + 0.0000 + 0.9073 - 0.0000 * 1.00 ) * 1103 = 4336.83 kgf

Strength of Connection Elements for Failure Path Analysis

Shear, Outward Nozzle Weld [Sonw]: = (pi/2) * Dlo * Wo * 0.49 * Snw = ( 3.1416 / 2.0 ) * 168.2750 * 9.5250 * 0.49 * 1103 = 13618. kgf

Shear, Nozzle Groove Weld [Sngw]: = (pi/2) * (Dlr+Wgnva) * (Wgnva-Can) * 0.60 * Sng = (3.14 /2)*(149.329 +8.380 )*(8.380 -1.5000 )*0.6*1103 = 11288. kgf

Strength of Failure Paths:

PATH11 = ( SONW + SNGW )= ( 13617 + 11287 ) = 24905 kgf

Summary of Failure Path Calculations:Path 1-1 = 24905 kgf, must exceed W = 3892 kgf or W1 = 4336 kgf

The Drop for this Nozzle is : 7.7925 mm

48


The Cut Length for this Nozzle is, Drop + Ho + H + T : 168.5726 mm


49













Nozzle Outside Projection Ho 152.4000 mmWeld leg size between Nozzle and Pad/Shell Wo 9.5250 mmGroove weld depth between Nozzle and Vessel Wgnv 8.3800 mmASME Code Weld Type per UW-16 None



Nozzle Sketch

| | | | | | | | | | |\ | __________/|_\| | | | | |______________|

Abutting Nozzle No Pad


50












The area available without a pad is Sufficient.



Area Available in Shell [A1]: = (DL-Dlr)*(ES*(T-Cas)-Tr)-2*(Thk-Can)*(ES*(T-Cas)-Tr)*(1-fr1) = (298.659-149.329)*(1.00*(8.3800-1.500)-4.621)-2*(10.973-1.500) *(1.00*(8.3800-1.5000)-4.6208)*(1-1.0000) = 3.374 cm²



UG-45 Minimum Nozzle Neck Thickness Requirement: [Int. Press.]Wall Thickness per UG45(a), tra = 2.1888 mmWall Thickness per UG16(b), tr16b = 3.0875 mm

51


Wall Thickness per UG45(b)(1), trb1 = 6.1208 mmWall Thickness per UG45(b)(2), trb2 = 1.9394 mmWall Thickness per UG45(b)(3), trb3 = Max(trb1, trb2, tr16b) = 6.1208 mmStd. Wall Pipe per UG45(b)(4), trb4 = 7.7230 mmWall Thickness per UG45(b), trb = Min(trb3, trb4) = 6.1208 mm















PATH11 = ( SONW + SNGW )= ( 13617 + 11287 ) = 24905 kgf


The Drop for this Nozzle is : 7.7925 mm

52


The Cut Length for this Nozzle is, Drop + Ho + H + T : 168.5726 mm


53













Nozzle Outside Projection Ho 152.4000 mmWeld leg size between Nozzle and Pad/Shell Wo 9.5250 mmGroove weld depth between Nozzle and Vessel Wgnv 15.0622 mm

Pad Material SA-285 CPad Allowable Stress at Temperature Sp 1103.82 kgf/cm²Pad Allowable Stress At Ambient Spa 1103.82 kgf/cm²Diameter of Pad along vessel surface Dp 373.0000 mmThickness of Pad Tp 6.0000 mmWeld leg size between Pad and Shell Wp 5.0000 mmGroove weld depth between Pad and Nozzle Wgpn 6.0000 mmReinforcing Pad Width 49.9750 mmASME Code Weld Type per UW-16 None



Nozzle Sketch

| | | | | | | | | |

54


__________/|\ | ____/|__________\|_\|| || ||____________________|

Abutting Nozzle With Pad








UG-40, Thickness and Diameter Limit Results : [Int. Press]Effective material diameter limit, Dl 491.8512 mmEffective material thickness limit, no pad Tlnp 17.2000 mmEffective material thickness limit, pad side Tlwp 17.2000 mm




The area available without a pad is Insufficient.The area available with the given pad is Sufficient.

SELECTION OF POSSIBLE REINFORCING PADS: Diameter ThicknessBased on given Pad Thickness: 279.4000 6.0000 mmBased on given Pad Diameter: 373.0001 1.5875 mmBased on Shell or Nozzle Thickness: 277.8125 9.5250 mm



Area Available in Shell [A1]: = (DL-Dlr)*(ES*(T-Cas)-Tr)-2*(Thk-Can)*(ES*(T-Cas)-Tr)*(1-fr1) = (491.851-245.926)*(1.00*(8.3800-1.500)-4.621)-2*(15.062-1.500)

55


*(1.00*(8.3800-1.5000)-4.6208)*(1-1.0000) = 5.556 cm²


Area Available in Nozzle Wall, with Pad [A2wp]: = ( 2 * Tlwp)*( Thk - Can - Trn )* fr2 = ( 2 * 17.2000 ) * ( 15.0622 - 1.5000 - 1.1344 ) * 1.0000 ) = 4.275 cm²


Area Available in Welds, with Pad [A4wp]: = Wo²*fr3+(Wi-Can/0.707)²*Fr2+Wp²*Fr4 = 9.5250² *1.00 + (0.0000 )² *1.00 + 5.0000² * 1.00 = 1.157 cm²

Area Available in Pad [A5]: = (min(Dp,DL)-(Nozzle OD))*(min(Tp,Tlwp,Te))*fr4 = ( 373.0001 - 273.0500 ) * 6.0000 * 1.00 = 5.997 cm²




Note: The MAWP of this junction was limited by the shell.

Minimum Design Metal Temperature Results: Nozzle PadMinimum Temp. w/o impact per UCS-66 -20 -8 CMinimum Temp. at required thickness -98 -26 CMinimum Temp. w/o impact per UG-20(f) -29 -29 C




Intermediate Calc. for nozzle/shell Welds Tmin 6.0000 mmIntermediate Calc. for pad/shell Welds TminPad 6.0000 mm

Results Per UW-16.1: Required Thickness Actual Thickness

56


Nozzle Weld 4.2000 = 0.7 * TMIN 6.7342 = 0.7 * Wo mmPad Weld 3.0000 = 0.5*TminPad 3.5350 = 0.7 * Wp mm





Shear, Pad Element Weld [Spew]: = (pi/2) * DP * WP * 0.49 * SEW = ( 3.1416 / 2.0 ) * 373.0000 * 5.0000 * 0.49 * 1103 = 15845. kgf

Tension, Pad Groove Weld [Tpgw]: = ( pi/2) * Dlo * Wgpn * 0.74 * Seg = (3.1416 / 2 ) * 273.0500 * 6.0000 * 0.74 * 1103 = 21020. kgf



PATH11 = ( SPEW + SNGW ) = ( 15845 + 36822 ) = 52668 kgf




57





Inside Diameter of Elliptical Head D 916.8000 mmAspect Ratio of Elliptical Head Ar 2.00Head Actual Thickness T 8.1000 mmHead Internal Corrosion Allowance Cas 1.5000 mmHead External Corrosion Allowance Caext 0.0000 mm

Distance from Head Centerline L1 0.0000 mm



Nozzle Diameter Basis (for tr calc only) Inbase ODLayout Angle 0.00 degNozzle Diameter Dia 2.0000 in.

Nozzle Size and Thickness Basis Idbn ActualActual Thickness of Nozzle Thk 5.0000 mm



Nozzle Outside Projection Ho 152.4000 mmWeld leg size between Nozzle and Pad/Shell Wo 9.5250 mmGroove weld depth between Nozzle and Vessel Wgnv 8.1000 mmNozzle Inside Projection H 0.0000 mmWeld leg size, Inside Nozzle to Shell Wi 0.0000 mmASME Code Weld Type per UW-16 None



Nozzle Sketch

| | | | | | | | ____________/| || \ | || \ | ||____________\|__|

Insert Nozzle No Pad, no Inside projection


58



Actual Nozzle Outside Diameter Used in Calculation 2.000 in.Actual Nozzle Thickness Used in Calculation 0.197 in.


Reqd thk per UG-37(a)of Elliptical Head, Tr [Int. Press] = (P*(K*(D+2*CA)))/(2*S*E-0.2*P) per UG-37(a)(3) = (11.03*(0.90*(916.8000+2*1.5000)))/(2 *1103*1.00-0.2*11.03) = 4.1404 mm

Reqd thk per UG-37(a)of Nozzle Wall, Trn [Int. Press] = (P*D/2)/(S*E+0.4*P) per Appendix 1-1 (a)(1) = (11.03*50.8000/2.0)/(1202*1.00+0.4*11.03) = 0.2322 mm



Note: Taking a UG-36(c)(3)(a) exemption for N1:2'' Sch 40 . This calculation is valid for nozzles that meet all the requirements of paragraph UG-36. Please check the Code carefully, especially for nozzles that are not isolated or do not meet Code spacing requirements. It may be necessary to force the program to print the areas per UG-37.


Final Required Thickness, tr45 = Max(tra, trb) = 4.9226 mmAvailable Nozzle Neck Thickness = 5.0000 mm --> OK







NOTE : Skipping the nozzle attachment weld strength calculations. Per UW-15(b)(2) the nozzles exempted by UG-36(c)(3)(a) (small nozzles) do not require a weld strength check.

59




60

FileName : Scrubber (VA 1123)--------------------------------Nozzle Schedule STEP: 23 7:20a Nov 20,2013

Nozzle Schedule:

Nominal Flange Noz. Wall Re-Pad CutDescription Size Sch/Type O/Dia Thk ODia Thick Length in. Cls mm mm mm mm mm------------------------------------------------------------------------------N5:2'' Sch 40 2.000 150 WNF 50.800 5.000 - - 161.17N1:2'' Sch 40 2.000 150 WNF 50.800 5.000 - - 160.89N2:6'' Sch 80 6.000 80 WNF 168.275 10.973 - - 168.57N3:6'' Sch 80 6.000 80 WNF 168.275 10.973 - - 168.57N4:10'' Sch 80 10.000 80 WNF 273.050 15.062 373.00 6.000 181.60

Note on the Cut Length Calculation:The Cut Length is the Outside Projection + Inside Projection + Drop +In Plane Shell Thickness. This value does not include weld gaps,nor does it account for shrinkage.

Please Note: In the case of Oblique Nozzles, the Outside Diameter mustbe increased. The Re-Pad WIDTH around the nozzle is calculated as follows:Width of Pad = (Pad Outside Dia. (per above) - Nozzle Outside Dia.)/2

Nozzle Material and Weld Fillet Leg Size Details: Shl Grve Noz Shl/Pad Pad OD Pad Grve InsideNozzle Material Weld Weld Weld Weld Weld mm mm mm mm mm------------------------------------------------------------------------------N5:2'' SA-106 B 8.100 9.525 - - -N1:2'' SA-106 B 8.100 9.525 - - -N2:6'' SA-106 B 8.380 9.525 - - -N3:6'' SA-106 B 8.380 9.525 - - -N4:10'' SA-106 B 15.062 9.525 5.000 6.000 -

Nozzle Miscellaneous Data:

Elevation/Distance Layout Projection Installed InNozzle From Datum Angle Outside Inside Component cm deg. mm mm----------------------------------------------------------------------------N5:2'' Sch 40 -22.906 0.00 152.40 0.00 CN1:2'' Sch 40 258.000 0.00 152.40 0.00 CN2:6'' Sch 80 200.000 0.00 152.40 0.00 CN3:6'' Sch 80 200.000 180.00 152.40 0.00 CN4:10'' Sch 80 60.000 0.00 152.40 0.00 C


61

FileName : Scrubber (VA 1123)--------------------------------Nozzle Summary STEP: 24 7:20a Nov 20,2013

Nozzle Calculation Summary

Description Internal Ext MAPNC UG45 [tr] Weld Areas kgf/cm² kgf/cm² Path---------------------------------------------------------------------------N5:2'' Sch 40 ... ... OK 4.92 OK NoCalc[*]N2:6'' Sch 80 11.35 OK ... OK 6.12 OK PassedN3:6'' Sch 80 11.35 OK ... OK 6.12 OK PassedN4:10'' Sch 80 12.28 OK ... OK 6.12 OK PassedN1:2'' Sch 40 ... ... OK 4.92 OK NoCalc[*]---------------------------------------------------------------------------Min. - Nozzles 11.35 N3:6'' SchMin. Shell&Flgs 11.86 30 40 14.60

Computed Vessel M.A.W.P. 11.35 kgf/cm²

[*] - This was a small opening and the areas were not computed or the MAWP of this connection could not be computed because the longitudinal bending stress was greater than the hoop stress.

Note: MAWPs (Internal Case) shown above are at the High Point.

Check the Spatial Relationship between the Nozzles

From Node Nozzle Description Y Coordinate, Layout Angle, Dia. Limit 10 N5:2'' Sch 40 0.000 0.000 87.600 20 N2:6'' Sch 80 2000.000 0.000 298.659 20 N3:6'' Sch 80 2000.000 180.000 298.659 20 N4:10'' Sch 80 600.000 0.000 491.851 30 N1:2'' Sch 40 0.000 0.000 87.600

The nozzle spacing is computed by the following: = Sqrt( ll² + lc² ) where ll - Arc length along the inside vessel surface in the long. direction. lc - Arc length along the inside vessel surface in the circ. direction

If any interferences/violations are found, they will be noted below.No interference violations have been detected !


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FileName : Scrubber (VA 1123)--------------------------------Vessel Design Summary STEP: 25 7:20a Nov 20,2013

Design Code: ASME Code Section VIII Division 1, 2007

Diameter Spec : 933.000 mm ODVessel Design Length, Tangent to Tangent 240.16 cm

Distance of Bottom Tangent above Grade 0.00 cmSpecified Datum Line Distance 0.00 cm

Shell/Head Matl SA-285 CNozzle Material SA-106 BRe-Pad Material SA-285 C

Internal Design Temperature 93 CInternal Design Pressure 11.03 kgf/cm²

External Design Temperature 93 CExternal Design Pressure 1.05 kgf/cm²

Maximum Allowable Working Pressure 11.35 kgf/cm²External Max. Allowable Working Pressure 3.06 kgf/cm²Hydrostatic Test Pressure 18.89 kgf/cm²

Required Minimum Design Metal Temperature -29 CWarmest Computed Minimum Design Metal Temperature -29 C

Wind Design Code ASCE-93Earthquake Design Code UBC-94

Element Pressures and MAWP: kgf/cm²

Element Desc Internal External M.A.W.P Corr. All.Bottom Head 11.059 1.055 12.345 1.5000Shell 11.031 1.055 12.282 1.5000Top Head 11.031 1.055 11.864 1.5000

Element "To" Elev Length Element Thk R e q d T h k Joint EffType cm cm mm Int. Ext. Long CircEllipse 5.1 5.1 8.4 7.7 3.9 0.75 0.75Cylinder 235.1 230.0 8.4 7.7 6.0 0.75 0.75Ellipse 240.2 5.1 8.1 7.6 3.9 0.75 0.75

Element thicknesses are shown as Nominal if specified, otherwise are Minimum

Wind Shear on Support 111. kgf

Note: Wind and Earthquake moments include the effects of user defined forces and moments if any exist in the job and were specified to act (compute loads and stresses) during these cases. Also included are moment effects due to eccentric weights if any are present in the input.

Weights:Fabricated - Bare W/O Removable Internals 726.4 kgmShop Test - Fabricated + Water ( Full ) 2510.7 kgmShipping - Fab. + Rem. Intls.+ Shipping App. 726.4 kgmErected - Fab. + Rem. Intls.+ Insul. (etc) 726.4 kgmEmpty - Fab. + Intls. + Details + Wghts. 726.4 kgmOperating - Empty + Operating Liquid (No CA) 864.2 kgmField Test - Empty Weight + Water (Full) 2510.7 kgm


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vertical scrubber (va 1123) - copy

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