동력기계공학회지 (Journal of Power System Engineering)

  • 제13권3호
  • /
  • Pages.11-19
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  • 2009
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  • 2713-8429(pISSN)
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  • 2713-8437(eISSN)
한국동력기계공학회 (The Korean Society for Power System Engineering)
권호 표지

연료전지용 스크롤 팽창기-압축기 성능해석

Performance Analysis of a Combined Scroll Expander-compressor unit for a Fuel Cell System

  • 발행 : 2009.06.30
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초록

This paper introduces a conceptual design of a combined scroll expander-compressor unit for a fuel cell. Since air discharged out of the fuel cell stack has still high pressure energy, some power can be extracted from the air by directing it to pass through an expanding device. Such extracted power can be used to drive an auxiliary compressor. For this purpose, a scroll type expander coupled to a scroll type compressor was designed for a 1kW-class fuel cell. The orbiting scroll members of the expander and the compressor were made to share three of common drive shafts installed in the mid frame plate. Performance analysis for the combined expander-compressor unit showed that the installation of this unit could reduce the auxiliary power consumption in the fuel cell by about 42%.

키워드

참고문헌

  1. Driver Technology Ltd, 2000, "Review of the potential application of positive displacement compressor-expanders in advanced fuel cell cycles", ETSU F/03/001841REF
  2. Nikola Stosic, Ian K. Smith, Ahmed Kovacevic, 2003, "Combined compressor-expander in fuel cell application", IMECHE Conference Transactions on Compressors and their pp. 369,-380.
  3. Frano Barbir, 2005, "PEM Fuel Cells Theory and Practice", Elsevier.
  4. Hyun Jin Kim, 2004, "Development of computer simulation program for performance analysis of a scroll compressor", Technical Report, Univ. of Incheon.
  5. T. Yanagisawa et al., 2001, "Performance of an oil-free scroll type aie expander", IMechE Conference Trasactions on Compressors and their Systems, pp. 167 - 174.