Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Design of a Scroll Expander for Waste Heat Recovery from Engine Coolant

엔진 냉각수 폐열 회수용 스크롤 팽창기 설계

  • Yu, Je-Seung (Department of Mechanical Engineering, Graduate School, Incheon University) ;
  • Kim, Hyun-Jae (Department of Mechanical Engineering, Graduate School, Incheon University) ;
  • Kim, Hyun-Jin (Department of Mechanical Engineering, Incheon University)
  • 유제승 (인천대학교 기계공학과 대학원) ;
  • 김현재 (인천대학교 기계공학과 대학원) ;
  • 김현진 (인천대학교 기계공학과)
  • Received : 2011.07.20
  • Published : 2011.12.10
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Abstract

A scroll expander was designed for an energy converter from waste heat of IC engine coolant to useful shaft work. The scroll expander is to run in a Rankine cycle which receives heat energy transferred from engine coolant circulation cycle. The working fluid was Ethanol. For axial compliance, a back pressure chamber was provided on the rear side of the orbiting scroll. Lubrication oil was delivered by a positive displacement type oil pump driven by the shaft rotation. Performance analysis on the scroll expander showed that the expander efficiency was 63.4%. It extracts shaft power of 0.6 kW out of engine coolant waste heat of 17.5 kW, resulting in the Rankine cycle efficiency of 3.43%.

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References

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  2. Diego, A., Arias, Timothy, A., Shedd, and Ryan, K., Jester, 2006, Theoretical Analysis of Waste Heat Recovery from an Internal Combustion Engine in a Hybrid Vehicle, 2006 SAE 2006-01-1605.
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  4. Development of steam powered co-generation system for automobile fuel consumption improvement, Ministry of Knowledge Economy Technical Report(1), 2010.
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Cited by

  1. Performance analysis of an organic Rankine cycle for waste heat recovery of a passenger car vol.17, pp.2, 2013, https://doi.org/10.9726/kspse.2013.17.2.087
  2. A Study on the Design of an Asymmetric Algebraic Scroll Expander vol.26, pp.3, 2014, https://doi.org/10.6110/KJACR.2014.26.3.122