vfd fp calc2

8/20/2019 Vfd Fp Calc2

1/14

1-800-962-3787

pec a an s o e onnev e ower m ns ra on or perm ng us o s r u e s oo o energy pro ess ona s wor w e,as we as r s op er . an, , ec an ca v ng neer, . . . or eve op ng ese ca cu a ors.

See the complete line of energy saving drives from Cerus by clicking on the photo below:

If you have any questions regarding these tools, please click to email Chris Milan at

This, and other handy calculators can be found at http://.cerusind.com/calculators.asp

Click here for e!tensive analysis tools at "#$ eb site

"#$ CA%C&%A'()Sfor #an ! Pump Applications

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2/14

Comparison of Inlet and Outlet Dampers


3/14

Comparison of Inlet and Outlet Dampers


4/14

#an $rives Power *raphs

Page 4 of 14 Bonneville Power Administration Revision No. 1

'he power curves above are used in the energy savings analysis. Curves developed from data obtained by measuring the operating characteristics of various fan systems and frominformation provided in +#low Control+, a estinghouse publication, Bulletin B-/0, #121)ev-CMS 030. Curves are representative, not precise,final economic analysis should be based on actual power 4k5 measurements of the fan system.

0 20 40 60 80 100 120

0.0

20.0

40.0

60.0

80.0

100.0

120.0

16.4 17.020.0

25.0

32.0

40.7

51.1

62.8

75.7

89.6

104.4

Eddy Current Drive Fan Flow Control

% of Design CFM

% o

f D e s i g n I n p u t P o w e r ( k W )

0 20 40 60 80 100 120

0.00

20.00

40.00

60.00

80.00

100.00

120.00

4.75 5.37 8.00

12.89

20.27

30.38

43.46

59.75

79.50

102.93

Adusta!le "peed Drive Fan Flow Control

% of De sign CFM or % of Full "peed #PM

% o f D e s i g n I n p u t P o w e r ( k W

)


5/14

A$6&S'AB% SP$ $)7" 8)*9 SA"78*S CA%C&%A'()

Fan Motor Information

*++.++ hp

-.++ %

+.++ % 1-800-3543787

oer at 0an "esign C0M: 1+.2* KW

Facility Information

+ hr!yr

+.+- "!#$h

&itin' Flo$ (ontrol M)tho* an* Fan +yp)

1 Inlet Guide Vane, FC Fans 4 Outlet Damper, FC Fans 7

1 2 Inlet Guide Vane, BI & Airfoil Fans 5 Outlet Damper, BI & Airfoil Fans

3 Inlet Damper Box 6 Eddy Current Drives

,ty (ycl) .o$)r /nalyi ain' /nalyi

$!isting 3ystem 43" 3ystem

43" 3ystem oer %k'

+.+5 -.+5 2+.++ *6.+6 -.7+ 6.*6 &7.8+ 9

*+.+5 -.+5 2+.86 *6.67 6.1- &.&& 66.86 9

2+.+5 *+.+5 2*.-1 *-.*6 -.&1 &.11 7+.77 9

&+.+5 *+.+5 2&.&2 *8.&1 .++ -.82 8.+& 9

6+.+5 *+.+5 28.66 *.-8 *2.7 7.+- 18.+7 9

-+.+5 *+.+5 &*.6- 22.+ 2+.21 *6.2& 82.6 9

8+.+5 *+.+5 &.72 21.&2 &+.& 2*.&& 61.71 9

1+.+5 *+.+5 67.&8 &6.88 6&.68 &+.-* &&.* 9

+.+5 *+.+5 8&.&& 66.61 -7.1- 6*.7- 2+.*& 9

7+.+5 *+.+5 *.&1 -1.*& 17.-+ --.2 *+.-2 9

*++.+5 *+.+5 *+6.+* 1&.+& *+2.7& 12.21 8.+6 9

+otal *++.+5 258431 206629 -*.+& 9

l , ( l h * i* if h * l i #

nt)r )amep ate ;orsepoer:

nt)r )amep ate $ ciency: $$$c)r n comnt)r Motor =oa at 0an "esign C0M:

nt)r ;ours per year fan operates:

nt)r $nergy Charge:

)l)ct Flo$ (ontrol an*Fan +yp) @)lo$ Click to go to the #an 'ypes worksheet for more information

Seletion ! allo"s #$o"er %'( readin)in t+e analysis

$nter ercent of "esignCapacity %C0M'

$nterercent of

Time at thisCapacity

4nnual $nergy3avings %>h/yr'

4nnual $ner3avings %$!isting 3ystem

ercent of"esign %>'

"o )ot$nter "ata

?elo

$!isting 3ystemoer %k'

ercent of"esign %k'

for 43"3ystem

K$h!yr)&itin'

K$h!yra*

http://www.cerusind.com/http://var/www/apps/conversion/tmp/scratch_6/http://var/www/apps/conversion/tmp/scratch_6/http://www.cerusind.com/


6/14

Co..on Fan /ypes

F( For$ar*-(r)* Fan @I @ac#$ar*-Inclin)* Fan Ca*ial-@la*) Fan /

$ e s c r i p t i o n s a n d # a n f f i c i e n c i e s

P e r f o r m

a n c e C h a r a c t e r i s t i c s

A p p l i c a t i o n s

The fan blades curve in the direction of rotation. These fansare typically not as lare as other fan t ypes and structurally

are not very rued. !an efficiencies are in the rane of 55 to65".

The fan blades tilt bac#$ a%ay fro& the direction of rotation.The &ain difference bet%een fans in this cateory is the

shape and construction of the blades. The 'ac#%ard()nclined!lat blades tend to be &ore rued and allo% so&e

particulate to pass throuh but these blades are not veryaerodyna&ic and therefore are the least efficient. The

'ac#%ard()nclined *urved blades are &ore efficient but theirorientation %ith the air strea& can allo% &oisture and

particulate to collect on the blades %hich reduces fan

perfor&ance and &ay cause e+cessive vibrations. Theefficiency ranes fro& 75 to 85". The 'ac#%ard()nclined

,irfoil blade rese&bles the %in of an aircraft and is the &ostefficient fan type %ith efficiencies over 90".

These fans are typically the &ost rued of all types and canrane fro& -addle(heel desin to !lat 'lades %ith corrosion

resistance coatins. These fans usually operate at lo%ervolu&es but hiher pressures than other fan types. The %ide

openins bet%een the blades allo% larer &aterial to passthrouh and also &ini&i/es vibrations %hen operatin durin

conditions %hen the flo% and pressure drops. Theconstruction of these fans allo%s the& to be &odified to &eet

specific applications and to be repaired at &ini&u& costs.

Typical ranes of fan efficiencies for !lat 'lades is 55 to 65"and 60 to 75" for the adial Tip.

This fan roup includes fans. The fan blades are

strea&. The &aority of %hich allo% the& to sup

enerate hih airflo%s bue+pensive and least effic

efficiency these fans arethe Tubea+ial fan. To fur

develop a &ore unified a

for& the anea+ial fan.

The typical perfor&ance curve for a !or%ard *urved fan

contains a dip in the static pressure curve to the left of thepoint of &a+i&u& static pressure. This reion of the

perfor&ance curve indicates that the characteristics of the air

flo% throuh the fan %as not consistent. ,s the flo%increases$ the static pressure increases and decreases %ithin

this reion. )t is not reco&&ended to operate the fan %ithinthis unstable reion of the fan curve due to the unpredictable

flo% characteristics. This area is so&eti&es referred to as thestall reion.

The fan perfor&ance curve for 'ac#%ard )nclined fans is

si&ilar to the for%ard curve but typically has a s&aller dip inthe static pressure curve. The &aor difference of the

bac#%ard inclined fans is the characteristics of the '- curve.

The horsepo%er curve does not increase to a &a+i&u&a&ount at &a+i&u& flo% rate but instead %ill reach a pea#

and then drop off as the f lo% rate continues to increase to its&a+i&u& a&ount. This characteristic allo%s the desiner to

select a &otor si/e for the %orst casedesin conditions and ifany errors or chanes occur that %ould increase the flo%

reuire&ents$ the fan %ill not be overloaded. This is typically

referred to as a non(overloadin po%er curve.

The perfor&ance curve for fans %ith adial 'lade %heels is

typically a s&ooth curve sho%in the pressure steadilydroppin fro& a &a+i&u& at /ero flo% to a &ini&u& pressure

at full flo%. This characteristic allo%s stable operation of the

fan throuhout a %ide rane of flo%cf& by adustin thepressure. The correspondin '- curve increases at a linear

rate as the fan flo% rate increases. The adial Tip fanperfor&ance curve is a blend of the 'ac#%ard( )nclined and

adial 'lade curves. The '- curve increases to a &a+i&u&a&ount at &a+i&u& flo%. The adial Tip is &ore efficient than

the adial 'lade and therefore reuires less horsepo%er to

produce the sa&e output.

The fan perfor&ance cur

they are capable of provpressures than other fan

a uniue '- curve that

rate. The horsepo%er adecrease as flo% increas

value at &a+i&u& flo% rpressure result in differe

pressure$ causin instab %ithin this reion should

:ue to the narro% openins bet%een fan blades$ these fans

are not suited for airstrea&s containin particulate. Thesefans usually operate at lo% volu&es and lo% speeds such as

in residential ,* units.

,s stated above$ these fans are typically non(overloadin

and this characteristic &a#es the& a popular choice forapplications %ere the syste& perfor&ance is uncertain at

&a+i&u& flo% rates. The inside of these blades are usually

hollo% to reduce their %eiht but the build up of &oisture andparticulate can lead to cavities %hich reduces their efficiency.

The narro% openins can li&it the si/e of particulate in the airstrea& they can tolerate. These fans are a ood choice for

installations on the clean side of the process air strea& for

&aterial and dust handlin syste&s and for forced(draft fansin boilers.

These fans are the fans of choice for &ovin &aterial or air in

harsh operatin environ&ents. They are used to conveyeverythin fro& air filled %ith particulate to %ood chips$ roc# or

&etal scrap

-ropeller fans are co&&

e+haust syste&s. Tubea,* e+haust applicatio

rates are reuired. ,ll of

noise %hen co&pared to


7/14

7nlet "ane *raphs

Page # of 14 Bonneville Power Administration Revision No. 1

poer curve is over [email protected] *+-5

8

These power curves are used in the energy savings analysis.Curves developed from data obtained by measuring the operatingcharacteristics of various fan systems and from informationprovided in "Flow Control", a Westinghouse publication, Bulletin B-!, F#$#%ev-C&' (. Curves are representative, not precise.Final economic analysis should be based on actual power)*W+measurements of the fan system.

0 20 40 60 80 100 120

0.0

20.0

40.0

60.0

80.0

100.0

120.0

50.3

56.159.8

62.2 64.0 66.0

69.1

73.9

81.2

91.9

106.7

Inlet Da.per 3o67 8eneral Curve

% of Design CFM

% o f D e s i g n I n p u t P

o w e r ( k W )

0 20 40 60 80 100 120

0.0

20.0

40.0

60.0

80.0

100.0

120.0

20.0 20.6 21.6

23.3

26.4

31.5

38.9

49.4

63.3

81.4

104.0

Inlet 8uide 9ane Control7 Forward Curve Fans

% of De sign CFM

% o

f D e s i g n I n p u t P o w e r ( k

0 20 40 60 80 100 120

0.0

20.0

40.0

60.0

80.0

100.0

120.0

47.3

52.655.8

57.4 58.559.9

62.3

66.7

73.8

84.6

99.8

Inlet 8uide 9ane Control7 3I : Airfoil Fans

% of Design CFM

% o f D e s i g n I n p u t P o w e r ( k W )


8/14

(utlet $amper *raphs

Page $ of 14 Bonneville Power Administration Revision No 1

+h) po$)r cr) ao) ar) )* in th) )n)r'y ain' analyi (r) *))lop)* from *ata otain)* y m)arin' th) op)ratin' charact)ritic ofario fan yt)m an* from information proi*)* in DFlo$ (ontrolD a W)tin'ho) plication @ll)tin @-851 F!86!C)-(M 8121 (r) ar)r)pr))ntati) not pr)ci) ?nal )conomic analyi hol* ) a)* on actal po$)r#W m)ar)m)nt of th) fan yt)m

0 20 40 60 80 100 120

0.0

20.0

40.0

60.0

80.0

100.0

120.0

20.422.3

25.6

30.4

36.7

44.5

53.8

64.6

76.9

90.6

105.9

;utlet Da.per Control7

Forward Curve Fans

% of Design CFM

% o


0 20 40 60 80 100 120

0.0

10.0

20.0

30.0

40.0

50.0

60.0

70.0

80.0

90.0

100.0

110.0

120.0

52.6 53.3

57.2

63.6

71.5

80.2

88.7

96.3

102.1

105.2

;utlet Da.per Control7 #adial 3lade7

3a-kward In-lined : Airfoil Fans

% of Design CFM

% o



9/14

ADC=>A/;#

Fan A li-ations Motor Information

-+.++ hp

$nter )amep ate $ ciency: 7-.++ %

$nter Motor =oad at 0an "esign C0M: 7+.++ %

oer%>' at 0an "esign C0M: &-.&6 KW


$nter ;ours per year fan operates: 18+ hr!yr

$nter $nergy Charge: +.+- "!#$h

Flo$ (ontrol M)tho* an* Fan +yp)

1 Inl)t i*) Ean) F( Fan 4 h/Ar'

4nnual $nergy Cos3avings %9/yr'

$!isting3ystem

ercent of"esign %>'

"o )ot$nter "ata

?elo

$!isting3ystem oer

%>'

ercent of"esign %>'

for 43"3ystem

K$h!yr)&itin'

K$h!yra*

+

$

,

&

,%

t0 i s C a p a - i t y

+

$

,$$

t0 i s C a p a - i t y

'his Sample 7nput Sheet is for viewingpurposes only. 8o values can be inputted orchanged. 7t is included here to give the user

an idea of what types of values can beentered into either the #an Calculator or

Pump Calculator worksheets.

http://var/www/apps/conversion/tmp/scratch_6/http://var/www/apps/conversion/tmp/scratch_6/


10/14

/@PE" ;F AI#F>;W C;?/#;>

Inl)t i*) Ean) an*Inl)t ,amp)r


11/14

Pump $rives Power *raphs

Page 11 of 14 Bonneville Power Administration Revision No. 1

Balues used in spreadsheet

'hese power curves are used in the energy savings analysis.

Curves developed from data obtained by measuring the operatingcharacteristics of various pumps and from information provided in+#low Control+, a estinghouse publication, Bulletin B-/0,#121)ev-CMS 030. Curves are representative, not precise, finaleconomic analysis should be based on actual power4k5measurements of the pumping system.

10 20 30 40 50 60 70 80 90 100 110

0.00

20.00

40.00

60.00

80.00

100.00

120.00

14.32 13.05 15.30

21.07

30.37

43.19

59.53

79.40

102.79

A"D Pu.p Flow Control

% of Design Flow (gp.) or % of Full "peed(rp.)

% o f D e s i g n I n p u t P o w e r ( k W )

0 20 40 60 80 100 120

0

20

40

60

80

100

120

13.51

18.16

24.92

33.38

43.12

53.72

64.76

75.81

86.46

96.29

104.88

Me -0ani-al "peed Pu.p Flow Control

% of Design Flow (gp.)

% o

f D e s i g n I n p u t P o w e r ( k

W )

0 20 40 60 80 100 120

0.00

20.00

40.00

60.00

80.00

100.00

120.00

16.40 17.04 19.98

25.03

32.01

40.75

51.06

62.77

75.69

89.64

104.45

Eddy Current Drive Pu.p Flow Control


% o



12/14

A$6&S'AB% SP$ $)7" 8)*9 SA"78*S CA%C&%A'()

*++.++ hp

7-.++ %

--.++ % 1-800-3543787

6&.*7 KW


6+++ hr!yr

+.+- "! $

&itin' .mp Flo$ (ontrol M)tho*

1 +rottlin) Valve 4 Bypass, -eirulation Valve

* 2 Eddy Current Clut+ 5 Seletion . allo"s #easured $o"er %'( readin)s to *

3 #e+anial %or/ue Converter(

,ty (ycl) .o$)r /nalyi ain'

$!isting 3ystem 43" 3ystem

+.+5 -.+5 --.2* 2&.- 21.6- **.- 2,&7.&+

*+.+5 -.+5 8*.&7 28.-2 *7.*2 .28 &,8-*.+

2+.+5 *+.+5 81.*7 27.+2 *6.&2 8.*7 7,*&&.2

&+.+5 *+.+5 12.8* &*.&8 *&.+- -.86 *+,27.76

6+.+5 *+.+5 11.8- &&.-6 *-.&+ 8.8* *+,112.*8

-+.+5 *+.+5 2.&* &-.-- 2*.+1 7.*+ *+,-17.7&

8+.+5 *+.+5 8.-7 &1.6+ &+.&1 *&.*2 7,1*&.28

1+.+5 *+.+5 7+.67 &7.+ 6&.*7 *.8- ,*12.*6

+.+5 *+.+5 76.+* 6+.8+ -7.-& 2-.1* -,7-8.-1

7+.+5 *+.+5 71.*- 6*.78 17.6+ &6.27 &,+88.--*++.+5 *+.+5 77.7* 6&.*- *+2.17 66.6+ 671.7*

+otal *++.+5 14273845 6950314 1&,2&-.&*

ampl) ,ty (ycl) th)) can ) )* a a 'i*) if th) *ty cycl) i not #no$n

ampl) ,ty (ycl) - I .HM. ;


13/14

A$6&S'AB% SP$ $)7" 8)*9 SA"78*S CA%C&%A'()

e used in t+e analysis

/nalyi

**7.72

*2.--

6-8.88

-*6.-+

-&.8*

-27.++

6-.88

6+.8*

271.&

*-&.&&

26.7+

9 &,88*.11

4nnual $nergy Cost3avings %9/yr'

http://var/www/apps/conversion/tmp/scratch_6/http://var/www/apps/conversion/tmp/scratch_6/


14/14

'hrottle "alve Power *raphs

+h) po$)r cr) ao) ar) )* in th) )n)r'y ain' analyi (r) *))lop)* from *ata otain)* y m)arin' th) op)ratin'charact)ritic of ario pmp an* from information proi*)* in DFlo$ (ontrolD a W)tin'ho) plication @llit)n @-851 F!86!C)-(M 8121 (r) ar) r)pr))ntati) not pr)ci) ?nal )conomic analyi hol* ) a)* on actal po$)r #W m)ar)m)nt of th)

pmpin' yt)m

10 20 30 40 50 60 70 80 90 100 110

B

B$

'

'$

$Constant #e-ir-ulation7 3ypass Control


% o

f D e s i g n ( k W

)

10 20 30 40 50 60 70 80 90 100 110

5

$5

$5

&$5

5

$5

67.19

72.61

77.65

82.31

86.59

90.49

94.01

97.15

99.91

/0rottling 9alve Flow Control


% o

f D e s i g n ( k W )

vfd fp calc2

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