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 Swash Plate Type of Steam Expander for Waste Heat Recovery

폐열 회수용 사판식 스팀 팽창기 설계

  • Kim, Hyun-Jae (Department of Mechanical Engineering, Graduate School, lncheon University) ;
  • Kim, Hyun-Jin (Department of Mechanical Engineering, lncheon University)
  • 김현재 (인천대학교 기계공학과 대학원) ;
  • 김현진 (인천대학교 기계공학과)
  • Received : 2010.11.11
  • Accepted : 2011.03.04
  • Published : 2011.05.10
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Abstract

For a steam Rankine cycle to recover waste heat from the exhaust gas of an Internal combustion engine, a swash plate type of expander as a power conversion unit has been designed. Numerical simulation has been carried out to estimate the performance of the designed expander. With the steam pressure and temperature of 35 bar and $300^{\circ}C$ at the expander inlet, respectively, the expander was estimated to produce the shaft power output of about 2.67 kW from the exhaust gas waste heat of 25.2 kW. The expander output increased almost linearly with the amount of exhaust gas waste heat in the range of from 5~40 kW, and the expander and Rankine cycle efficiencies showed gradual decreases in the ranges of 72.2%~69.5% and 10.8%~10.4%, respectively.

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Acknowledgement

Supported by : 인천대학교

References

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Cited by

  1. Optimization of Design Pressure Ratio of Positive Displacement Expander for Engine Waste Heat Recovery of Vehicle vol.21, pp.4, 2012, https://doi.org/10.5855/ENERGY.2012.21.4.411