Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Experimental and Numerical Study on Flow Characteristics of a Common Exhaust System for Multiple SOFCs

SOFC용 복합 배기 시스템 유동 특성에 관한 실험 및 수치해석적 연구

  • DAEWOONG JUNG (Hydrogen Energy Solution Center, Institute for Advanced Engineering) ;
  • JONGHYUK YOON (Hydrogen Energy Solution Center, Institute for Advanced Engineering) ;
  • HYOUNGWOON SONG (Hydrogen Energy Solution Center, Institute for Advanced Engineering)
  • 정대웅 (고등기술연구원 수소에너지솔루션센터) ;
  • 윤종혁 (고등기술연구원 수소에너지솔루션센터) ;
  • 송형운 (고등기술연구원 수소에너지솔루션센터)
  • Received : 2023.10.27
  • Accepted : 2023.12.06
  • Published : 2023.12.30
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Abstract

In this study, experiments and numerical analysis were conducted to investigate the exhaust gas flow in a common exhaust system of multiple solid oxide fuel cells. The system was fabricated based on KGS code and operated within a pressure range of 0.12 kPa, with flow rates ranging from 79.1 to 103.4 L/min. Numerical modeling was validated with a mean absolute error of 3.8% for pressure results. The study assessed the impact of changes in area ratio and emergency stops on pressure distribution, velocity vectors, and wall shear stress. The findings revealed no significant factors causing high differential pressure or backflow.

Keywords

Acknowledgement

본 연구는 한국산업기술진흥원의 재원으로 중소벤처기업부의 규제자유특구혁신사업(P0016054) 지원에 의한 연구임.

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