Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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A Study on the Analysis of the Leakage Characteristics and the Selection of Leakage Scenarios of the Blending Hydrogen into Natural Gas Pipeline

수소혼입 천연가스 배관망의 누출 특성 분석 및 누출 시나리오 선정에 관한 연구

  • Song Su Tak (Department of Green Energy Engineering, Far East University) ;
  • Ki Seop Lim (Department of Green Energy Engineering, Far East University)
  • 탁송수 (극동대학교 친환경에너지공학과) ;
  • 임기섭 (극동대학교 친환경에너지공학과)
  • Received : 2024.01.15
  • Accepted : 2024.02.14
  • Published : 2024.02.29
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Abstract

This study analyzed cases of hydrogen (H2) and natural gas (CH4) leakage from a hydrogen-blended natural gas pipeline to determine a range of leakage characteristics, including leakage type, pipe material, pipe diameter, pressure, and damage size. Based on the results of this analysis, five hydrogen-blended natural gas leakage scenarios were selected. The national vision for a carbon-neutral society by 2050 is a very important strategic objective and promotes environmentally sustainable economic development in the age of the climate crisis. Accordingly, zero-carbon and low-carbon policies are being promoted in various fields, including energy production, consumption, and industrial processes. Hydrogen-blended natural gas is eco-friendly and is considered an important step towards carbon neutrality, with various countries including the United States and several European countries conducting empirical research to further investigate its potential. In Korea, a national research project commenced in April 2023 to verify and demonstrate the life cycle safety of blending hydrogen into the natural gas network. The results of this study will provide important data for the analysis of the damage impacts caused by the leakage of hydrogen-blended natural gas, such as the diffusion of gas clouds, fires, and gas explosions.

Keywords

Acknowledgement

This research was supported by KETEP grant funded by the Korea government(MOTIE) (RS-2023-00236237).

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