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Performance Evaluation of Air Source Multi Heat Pump Floor Heating System in Apartment  

LEE, C.H. (한전 전력연구원 녹색성장연구소)
Nah, H.S. (한전 전력연구원 녹색성장연구소)
JUNG, H. (한전 전력연구원 녹색성장연구소)
Kim, K.S. (한전 전력연구원 녹색성장연구소)
Publication Information
Journal of the Korean Society of Mechanical Technology / v.13, no.3, 2011 , pp. 93-98 More about this Journal
Abstract
To analyze and evaluate the performance of developing air to water multi heat pump, the heat pump was installed and tested at low energy house in Daejeon, korea. Heating capacity of heat pump is 16.5KW and cooling capacity is 14.0KW. Space heating/cooling, floor heating and hot water is available. The results performance evaluation of heat pump in lab test showed that the coefficient of performance (cop) was 3.75, and heating capacity was 16.0KW in ambient temperature $7^{\circ}C$. Also at ambient temperature $-15^{\circ}C$, the COP was 1.69. At a low energy house, floor heating is controled by a floor heating water temperature and a room temperature. The COP of heat pump is decreased with frequent on/off operation for controlling of floor heating water temperature.
Keywords
Heat Pump; Floor Heating; EHP; COP;
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