Comprehensive Analysis of Safety Risk Assessment HRSG: PT. “X” Indonesia with the Combination Method of HAZOP, LOPA and SIL
- DOI
- 10.2991/aer.k.220131.001How to use a DOI?
- Keywords
- HAZOP; LOPA; SIL; Risk Matrix; Risk Mitigation
- Abstract
Gas turbine cogeneration or combined heat and power is an efficiency in generating electricity while utilizing hot exhaust gases to generate steam in HRSG. The facility has significant risk in operation, need to comprehensively risk analysis and carry out of mitigation. Comprehensive risk analysis of these unit with the combined method of HAZOP, LOPA, SIL, by initiating hazard identifying and continued analysis with the HAZOP method and obtained 23 scenarios of deviation HAZOP were acceptable risk, 20 scenarios were significant risk and 1 scenario was as high risk. The safeguard on combination of HAZOP and LOPA analysis to medium and high risk scenarios is not required, because the initiating event frequency are smaller than the target mitigation likelihood, an increasing of SIL is required in the analysis of the combination of HAZOP and SIL. Existing protection has been met but still of a possibility of the instrumentation system opening failure such as the opening of diverter valve of the hot exhaust gases from the exhaust diffuser to gas stack and the HRSG unit, failure of BFW level control in HRSG unit and reduced supply of air demand to gas turbine unit due to dirty of air filter. Recommendations, for adding SIL for diverter valve, install safeguard alarm of HRSG level and install auto cleaning of intake air filter to gas turbine.
- Copyright
- © 2022 The Authors. Published by Atlantis Press International B.V.
- Open Access
- This is an open access article under the CC BY-NC license.
Cite this article
TY - CONF AU - Anton Irawan AU - Indar Kustiningsih AU - Sayid Jakfar PY - 2022 DA - 2022/02/01 TI - Comprehensive Analysis of Safety Risk Assessment HRSG: PT. “X” Indonesia with the Combination Method of HAZOP, LOPA and SIL BT - Proceedings of the Conference on Broad Exposure to Science and Technology 2021 (BEST 2021) PB - Atlantis Press SP - 1 EP - 7 SN - 2352-5401 UR - https://doi.org/10.2991/aer.k.220131.001 DO - 10.2991/aer.k.220131.001 ID - Irawan2022 ER -