MODELLING AND TRANSIENT SIMULATION OF SOLAR-GROUND SOURCE HEAT PUMP HEATING SYSTEM
Solar-ground source heat pump (SGSHP) heating system with phase change storage tank (PCST) is investigated. The mathematical model of the system is developed, and the transient numerical simulation is carried out in terms of this model. The operation characteristic of the heating system is analyzed during the heating period in Harbin. From the results of the simulation, the average coefficient of heating performance (COHP) of the heating system is 3.28 in heating period. In the initial and latter heating period, the COHP is higher, because the system can be operated without heat pump. During the middle heating period the COHP and the operation stability of the system are improved due to solar energy and soil alternately or together as the heat source of heat pump. PCST is a very important role in operation of the system. The system can be operated more flexibly, effectively, and stably by the charge and discharge heat of PCST, and the effect becomes especially obvious in the initial and latter heating period.
Han Zongwei Zheng Maoyu
School of Municipal and Environmental Engineering, Harbin Institute of Technology, P.O.Box 235 Harbi School of Municipal and Environmental Engineering, Harbin Institute of Technology, P.O.Box 2644 Harb
国际会议
2007世界太阳能大会(Proceedings of ISES Solar World Congress 2007)
北京
英文
2007-09-18（万方平台首次上网日期，不代表论文的发表时间）