Design and performance of a direct expansion ground-source heat pump system

作者：Guo Yong Hui; Zhang Guo Qiang^*; Zhou Jin; Wu Jia Sheng; Shen Wei

来源：Journal of Chongqing University, 2011, 34(SUPPL. 1): 62-66.

• Airconditioning systems
• Cooling mode
• Cooling performance
• Direct expansion
• Energy analysis
• Ground source heat pump systems
• Ground-source heat pump
• Heat pumps
• Heating mode
• Indoor temperature
• Performance
• Residential building
• Weather conditions

A comfort air-conditioning system driven by direct expansion ground-source heat pump (DX-GSHP) is designed and constructed in a residential building in Changsha, P. R. China, of which the capacity of the heat pump is 5 kW. The initial investment and operation of the ground source heat pump in winter and summer are analyzed and discussed. According to the experimental results under typical weather condition of Changsha, the average cooling performance coefficients of the DX-GSHP system in cooling mode is 6.03 and that in heating mode is 6.24. The average indoor temperature in cooling and heating mode are 24°C and 20°C, respectively. The results show that the system runs steadily and achieves a better effect than we expected.

• 出版日期2011
• 单位河南大学