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Simulation on the Heating Performance of a 2-Stage Compression Heat Pump System Using River Water  

Park Chasik (Graduate School of Mechanical Engineering, Korea University)
Kim Bohyun (Compressor R&D Team, Samsung Gwangju Electronics Co.)
Kim Yongchan (Department of Mechanical Engineering, Korea University)
Lee Young Soo (Korea Institute of Energy Research)
Bang Ki-young (UNITEM)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.17, no.11, 2005 , pp. 1005-1013 More about this Journal
Abstract
The use of river water as a heat source of a heat pump has the advantage in the performance compared to the use of atmospheric air because the temperature variation of river water over the year is relatively small. In this study, the performance of the heat pump system using river water as a heat source was numerically investigated. A simulation model for the 2-stage compression heat pump system was developed with each component model composed of compressors, heat exchangers, a flash tank and electronic expansion devices. The peformance of the heat pump system using river water was improved by $50\%$ compared to that using atmospheric air in winter conditions.
Keywords
River water; Heat pump; 2-Stage compression heat pump; Electronic expansion valve(EEV);
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