The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)

Korean Society for Fluid machinery (한국유체기계학회)
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Mechanical Load Performance Measurements of a Low Temperature Differential Stirling Engine with Water-Sprayed Heat Transfer according to Supply Water Flow Rates and Temperatures

스프레이 열전달을 이용한 저온도차 스털링 엔진의 고온수 공급 유량 및 온도에 따른 기계 부하성능 실험

  • Sim, Kyuho (Department of Mechanical System Design Engineering, Seoul Nat'l Univ. of Sci. and Tech.) ;
  • Jeong, Min-Seong (Department of Mechanical System Design Engineering, Seoul Nat'l Univ. of Sci. and Tech.) ;
  • Lee, Yoon-Pyo (Small & Medium Enterprises Support Center, Korea Institute Science and Technology) ;
  • Jang, Seon-Jun (Innovation KR)
  • 심규호 (서울과학기술대학교 기계시스템디자인공학과) ;
  • 정민성 (서울과학기술대학교 기계시스템디자인공학과) ;
  • 이윤표 (한국과학기술연구원) ;
  • 장선준 (이노베이션케이알)
  • Received : 2014.10.15
  • Accepted : 2014.01.14
  • Published : 2015.02.01
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Abstract

Recently, Stirling engines are emerging as a key device for power conversion of renewable energy or waste energy. This study develops a LTDSE(Low Temperature Differential Stirling Engine) using a water spray for higher heat transfer and performs load performance tests for various flow rates and temperatures of hot water spray for variable engine loads emulated by a mechanical friction device. Internal temperature and pressure, working frequency and inlet and outlet temperature of the supply water are measured. As a result, the increases in flow rate and temperature of hot water respectively enhance the power output, efficiency and the working frequency, while the increasing engine load leads to decreases in working frequency but increases in the pressure amplitude. Eventually, it is revealed there exists a maximum shaft power of the test engine.

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References

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