Proceedings of the Conference on Broad Exposure to Science and Technology 2021 (BEST 2021)

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Comprehensive Analysis of Safety Risk Assessment HRSG: PT. “X” Indonesia with the Combination Method of HAZOP, LOPA and SIL

Authors
Anton Irawan1, *, Indar Kustiningsih1, Sayid Jakfar2
1Department of Chemical Engineering, Faculty of Engineering, Universitas Sultan Ageng Tirtayasa, Indonesia
2Magister Study Program of Chemical Engineering Universitas Sultan Ageng Tirtayasa, Indonesia.
*Corresponding author. Email: antonirawan@untirta.ac.id
Corresponding Author
Anton Irawan
Available Online 1 February 2022.
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.

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Volume Title
Proceedings of the Conference on Broad Exposure to Science and Technology 2021 (BEST 2021)
Series
Advances in Engineering Research
Publication Date
1 February 2022
ISBN
10.2991/aer.k.220131.001
ISSN
2352-5401
DOI
10.2991/aer.k.220131.001How to use a DOI?
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

risenwbib
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  -