전기화학회지 (Journal of the Korean Electrochemical Society)

  • 제17권3호
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  • Pages.193-200
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  • 2014
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  • 1229-1935(pISSN)
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  • 2288-9000(eISSN)
한국전기화학회 (The Korean Electrochemical Society)
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전산해석을 통한 PEMFC 평행 유로에서 Baffle에 의한 출력특성 분석

Study on Power Characteristics in the PEMFC Parallel Channel with Baffles through Numerical Analysis

  • 권오정 (전남대학교 대학원 기계공학과) ;
  • 오창묵 (고려대학교 대학원 기계공학과) ;
  • 신희선 (전남대학교 기계공학부) ;
  • 오병수 (전남대학교 기계공학과)
  • Kwon, Oh-Jung (Department of Mechanical Engineering, Graduate School, Chonnam National University) ;
  • Oh, Chang-Mook (Department of Mechanical Engineering, Graduate School, Korea University) ;
  • Shin, Hee-Sun (Department of Mechanical Engineering, Undergraduate School, Chonnam National University) ;
  • Oh, Byeong Soo (Department of Mechanical Engineering, Chonnam National University)
  • 투고 : 2014.04.25
  • 심사 : 2014.08.15
  • 발행 : 2014.08.31
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초록

고분자 분리막 연료전지의 성능향상을 위해 분리판 유로설계연구는 필요하다. PEMFC의 성능향상에 대한, 강제대류를 이용한 interdigitated 유로가 최근에 많이 연구되고 있다. 이 논문에서는 interdigitated 유로를 배플들이 있는 평행류 채널에 비슷하게 적용하였다. 상용 multiphysics program인 COMSOL을 이용하여 완전차단배플인 FBB가 있는 평행류 채널에 관해 전산해석을 수행하였고 3가지 변인들(배플 위치, 유체 방향, 유체 속도)이 사용 되었다. 각각 변인들의 출력은 최대출력의 80%를 고려한 0.5V에서의 결과이다. 최종적으로, 실험설계법 중 완전요인실험법을 바탕으로 여러 수준을 갖는 각 실험인자로부터 결론을 도출하였다. 실험인자들의 주효과와 상호작용 분석은 출력을 향상시키는데 가장 영향을 주는 인자를 찾는데 유용하였다.

Research on flow channel designs of the separate plates is necessary to improve the PEMFC performance. On concerning the performance improvement of PEMFC, many recent studies have been made on the interdigitated flow channel using forced convection. In this paper, the interdigitated flow channel is similarly applied on the parallel flow channel with a baffle or baffles. Numerical analysis is performed by using a commercial multiphysics program, which is called COMSOL, on the parallel channel with the fully blocked baffle(FBB) and there are three variables, the position of baffle, flow direction and flow velocity. Each power of the variables is resulted from the fixed 0.5V, the voltage from 80 percents of the maximum power. Finally, based on the full factorial designs(FFD), one of the design of experiments(DOE), each factor which has several levels lead to the conclusion. The analysis of the main effects and interactions of the factors is useful to find the most influenced factor to improve the power.

키워드

참고문헌

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피인용 문헌

  1. A Design of the Cooling Channel in the Bipolar Plate of PEMFC Using Experimental Design Method vol.23, pp.5, 2015, https://doi.org/10.7467/KSAE.2015.23.5.545