condition monitoring of gas engine compressor
TRANSCRIPT
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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+62-21-4786-4302 +62-853-1317-7193
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