qualitative assessment cng compressor
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Qualitative Risk Assessment API RP 581 on CNG Compressor
Ronald Sukianto 13110083Daniel 13110097
Albert Han 13110131
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Kompresor CNGP&ID dari sistem SPBG Cibubur, diambil bagian kompresor.
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Kompresor (foto)
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Part ADetermination of Likelihood Category-Equipment Factor-Damage Factor-Inspection Factor-Condition Factor-Process Factor-Mechanical Design Factor
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Equipment factor
0
Sistem yang ditinjau adalah sistem kompresor berjumlah 3 unit (lihat P&ID).
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Damage factor
5
0
400021
0010
20
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Inspection factor
0
0
00
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Condition factor
2
2
26
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Process factor
1
1
13
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Mechanical Design Factor
2
02
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Likehood Category
Likelihood category = 3 (sedang/moderate risk level)
31
3
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Part BDetermination of Damage Consequence Category:-Chemical Factor-Quantity Factor-Autoignition Factor-Credit Factor
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Gas Alam
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Chemical Factor
4
0
25
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Quantity Factor
15
6
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Autoignition Factor
13
-10
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Credit Factor-1-1-1
-1-1
-1-1
-1-1-1-10
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Damage Consequence Category
Damage Consequence = B (relatively low consequence).
33
B
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Part CHealth Consequence Category:- Toxic Quantity Factor- Dispersibility Factor- Credit Factor- Population Factor
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Toxic Quantity Factor
Material released = density * assume leakage time*debit of gas on compressor.
15
-20-5
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Dispersibility Factor
1
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Credit Factor
There was proper safety equipment based on code and standard.
-1
-1
-5-7
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Population Factor
The station was located near the gas station, where approximately 10-100 peoples were having activities there.
7
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Health Consequence Category
Health consequence = A (low level consequence).
3
A
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Overall Consequence CategoryWe choose the highest between Health and
Damage Consequence.
The consequence factor became B.B
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Risk LevelRisk level medium (sedang).