condition monitoring of gas engine compressor

CONDITION MONITORING OF GAS ENGINE COMPRESSOR

RELIABILITY, AVAILBILITY, MAINTAINABILITY

APA ITU GAS ENGINE COMPRESSOR?Kompressor yang digerakkan oleh Engine/Mesin yang berbahan bakar Gas

RELIABILITY, AVAILBILITY, MAINTAINABILITY

APA ITU CONDITION MONITORING?o Condition Monitoring adalah salah satu metode Perawatan Mesin yang berlandaskan

kondisi dari mesin itu sendiri, bergantung dari parameter yang digunakan.

o Condition monitoring kali ini berfokus pada parameter vibrasi dari Gas Engine

Compressor

o Kenapa fokus pada vibrasi?

Karena dengan vibrasi kita bisa melihat apa yang terjadi pada engine atau benda berputar lain dan

membandingkannya dengan pola kerusakan yang sudah ada pada text book

o Dalam bahasan ini, kita juga akan membahas sedikit performa dari kompresor

RELIABILITY, AVAILBILITY, MAINTAINABILITY

RUANG LINGKUP BAHASAN

4-stroke Gas Engine dengan 12 Cylinder, konfigurasi V,

putaran 830-870 RPM

3 Stage Compressor, 4 Throw, 8 Chamber, Double Acting

Reciprocating Compressor

RELIABILITY, AVAILBILITY, MAINTAINABILITY

EQUIPMENT LAYOUT

1-2R

#1

3rd

#3

2nd

#2

1st

#4

1st

Reciprocating

Compressor

1-2L

5-6R

5-6L

Speed Reference (Optic

Sensor)

3-4R

3-4L

Sensor Vibrasi

Accelerometer

Sensor Tekanan

Pressure Transducer

RELIABILITY, AVAILBILITY, MAINTAINABILITY

CARA KERJA 4-STROKE GASOLINE ENGINE

RELIABILITY, AVAILBILITY, MAINTAINABILITY

CARA KERJA 4-STROKE GASOLINE ENGINE

Source:

https://www.youtube.com/watch?v=Pu

7g3uIG6Zo

RELIABILITY, AVAILBILITY, MAINTAINABILITY

PENILAIAN WEBINAR SELANJUTNYA

DATA TEKNIS SEPUTAR ENGINEGas Engine Gas Compressor

Manufacture

Type

Configuration

Firing Order

Bore / Stroke

Ind. Cock?

Comp. Ratio

Exh. Open

Exh. Close

Int. Open

Int. Close

Spark Timing

: Waukesha

: L5790G

: V-12

: 1R-6L-5R-2L-3R-4L-6R-1L-2R-5L-

4R-3L

: 8.5 “ / 8.5 “

: No

: 8.2:1

: 47 BBDC (4930Crank Degree)

: 20 ATDC (200Crank Degree)

: 17 BTDC (7030Crank Degree)

: 51 ABDC (2310Crank Degree)

: 17 BTDC (3430Crank Degree)

Timing valve from “Waukesha VHP 12 Cyl

G/GSI/GL – Repair & Overhaul Manual”

Manufacture

Type

No. of Throw

No. of Stage

Stroke

Cylinder Bore

Firing Order

Piston Rod Ø

Ind. Cock?

HE Clearance

CE Clearance

: Ariel Compressor

: JGE/4

: 4

: 3 stage

: 4.5 “

: #1. 9.25 ” #3. 15.25 ”

#2. 19.5 ” #4. 19.5 ”

: 1 – 2 – 3 – 4 (0 – 0 – 270 – 270)

: 2.5 “

: Yes

: #1. 13.9% #3. 16.7%

#2. 14.8% #4. 14.8%

: #1. 14.8% #3. 17.0%

#2. 15.0% #4. 15.0%

BDC: Bottom Dead Center (Titik Mati Bawah)

TDC: Top Dead Center (Titik Mati Atas)

RELIABILITY, AVAILBILITY, MAINTAINABILITY

CYLINDER HEAD VIBRATION PARADE

Sebelum memasuki data Cylinder Head, kita harus mengetahui 3 hal penting dalam

Analisa vibrasi dari Cylinder, yaitu:

1. Posisi

2. Pola

3. amplitudo

RELIABILITY, AVAILBILITY, MAINTAINABILITYCYLINDER HEAD VIBRATION PARADE

CRANK DEGREE

RELIABILITY, AVAILBILITY, MAINTAINABILITYCYLINDER HEAD VIBRATION PARADE

Exhaust

Valve Open

Exhaust

Valve

Close

Intake Valve

Open

Intake Valve

Close

Spark

TimingSpark

Timing

RELIABILITY, AVAILBILITY, MAINTAINABILITYCYLINDER HEAD VIBRATION PARADE

Spark

Timing

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