Journal of the Korean Institute of Gas (한국가스학회지)

The Korean Institute of GAS (한국가스학회)
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Comparison of Consequence Analysis Results for a Hydrogen Fueled Combined Cycle Power Plant Using ALOHA, E-CA and Hy-KoRAM Programs

ALOHA, E-CA, Hy-KoRAM 프로그램을 이용한 수소연료사용 복합화력발전소의 사고영향평가 결과 비교

  • Da Hee Kim (Dept. of Safety and Environmental System Engineering, Incheon National University Graduate School of Engineering) ;
  • Min Chul Lee (Dept. of Safety Engineering/Fire Disaster Prevention Research Center, Incheon National University)
  • 김다희 (인천대학교 공학대학원 안전환경시스템공학 ) ;
  • 이민철 (인천대학교 소방방재연구센터/안전공학과)
  • Received : 2024.09.13
  • Accepted : 2024.12.16
  • Published : 2024.12.31
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Abstract

This study conducted an accident impact assessment for a hydrogen fuel combined cycle power plant, which is expected to have a wide impact range due to handling large amounts of hydrogen in high temperature and high pressure. Using four programs(ALOHA, E-CA, Hy-KoRAM and KORA) this study analyzed the differences in results for toxicity, flammability, overpressure and thermal radiation across each program. ALOHA provided more objective results for toxicity, while E-CA was more reliable for flammability and overpressure. The findings serve as a foundation for establishing a conservative safety management and emergency response plan for hydrogen power plants.

본 연구에서는 고온, 고압으로 대량의 수소를 취급하여 사고 시 영향범위가 넓을 것으로 예상되는 수소연료 복합발전소를 대상으로 사고영향평가를 수행하였다. 최악의 시나리오를 가정하여 ALOHA, E-CA, Hy-KoRAM, KORA, 4가지 프로그램을 사용해 결과를 분석하고, 피해요인별(독성, 인화성, 과압, 복사열) 프로그램마다 상이한 결과의 원인을 분석하여 수소발전소 대상 가장 객관적이고 보수적인 사고영향평가 방법이 무엇인지 고찰하였다. 수소발전소에 가장 적합한 위험성 평가 프로그램은 ALOHA와 E-CA로 사료되며 두 프로그램의 결과를 교차 검증하여, 독성은 ALOHA, 가연성과 과압은 E-CA의 결과가 더 객관적이고 보수적인 것으로 확인하였다. 본 연구는 수소발전소 대상 보다 객관적이고 보수적인 안전관리체계와 비상대응계획을 수립할 수 있는 근거자료로 활용될 수 있을 것이다.

Keywords

Acknowledgement

본 연구는 2023년도 정부(산업통상자원부)의 재원으로 한국에너지기술평가원의 지원을 받아 수행된 연구임(00236869, 300MW급(H급) 가스터빈 50% 수소혼소 변환 기술개발 및 실증). 본 연구는 한국전력공사의 2022년 착수 기초연구개발 과제 연구비에 의해 지원되었음(과제번호 : R22XO02-06)

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