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2024 Vol.29, Issue 2 Preview Page

Research Article

Explosion Characteristics of Partially Cracked Ammonia Fuel

부분 크래킹된 암모니아 연료의 폭발 특성

Inho Kim1
,
Seo Hee Cho2
,
Keeman Lee1†
김 인호1
,
조 서희2
,
이 기만1†
1School of Mechanical and Aerospace Engineering/Center for Aerospace Engineering research, Sunchon National University
2Department of Aerospace Engineering, Seoul National University
1순천대학교 기계우주항공공학부/우주항공연구센터
2서울대학교 항공우주공학과
*Corresponding Author
30 June 2024. pp. 44-53
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Abstract

Ammonia is challenging to apply in existing industrial systems due to its low burning velocity and narrow flammability limits. However, it could serve as a viable replacement for hydrocarbon fuels by decomposing a portion of the ammonia into hydrogen and nitrogen. In this study, the explosion characteristics of partially cracked ammonia-air premixed flames were experimentally investigated in a cylindrical constant-volume chamber, with initial pressures and ammonia cracking ratios as variables. Ammonia cracking poses a significant risk of explosion due to the presence of hydrogen. By understanding the explosion characteristics of partially cracked ammonia fuels, it is possible to predict the severity of explosions and design safety equipment to mitigate these risks. As the ammonia cracking ratio increased, the burning velocity increased, resulting in a shortened explosion time and an increased maximum rate of pressure rise.

Keywords
Partially cracked ammonia
Ammonia cracking ratio
Maximum explosion pressure
Explosion index
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Information
  • Publisher :The Korean Society of Combustion
  • Publisher(Ko) :한국연소학회
  • Journal Title :Journal of the Korean Society of Combustion
  • Journal Title(Ko) :한국연소학회지
  • Volume : 29
  • No :2
  • Pages :44-53
  • Received Date : 2024-05-21
  • Revised Date : 2024-06-17
  • Accepted Date : 2024-06-17
  • DOI :https://doi.org/10.15231/jksc.2024.29.2.044
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