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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Experimental Study on the Heating Performance Improvement of R134a Heat Pump System for Zero Emission Vehicles

무공해자동차용 R134a 히트펌프 시스템의 난방성능 향상에 관한 실험적 연구

  • Lee, Dae-Woong (Research Division, Halla-Visteon Climate Control Corp.)
  • 이대웅 (한라비스테온공조 연구본부)
  • Received : 2014.02.22
  • Accepted : 2014.04.02
  • Published : 2014.06.10
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Abstract

This paper describes an experimental study for heating performance that can be used in R-134a automobile heat pump systems. The heat pump system is widely studied for heating system in zero-emission vehicles to attain both the small power consumption and the effective heating of the cabin. This paper presents the experimental results of the influence on heating capacity and coefficient of performance of heat pump system. Tests were performed with different sizes of internal and external heat exchangers, and refrigerant flow rate was also considered in two-way flow devices. In addition, the heat, air, and water sources with the heat pump system were examined. The experimental results with the heat pump system were used to analyze the impact on performances. The best combination of performance was A-inside heat exchanger, B-outside heat exchanger, and B-flow device, respectively. In addition, a water heat-source was found to give roughly 40% of better performance than an air heat-source heat pump system.

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References

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