摘要
本文针对济南某酒店的建筑冷、热负荷,将纯地源热泵系统与冷水机组辅助地源热泵复合系统进行地下温度场的模拟与比较,发现采用冷水机组辅助地源热泵复合系统不仅可以解决冷热负荷不平衡的问题,还可以提高地下换热器的传热效率,从而节约能源。
In order to make full use of the high efficiency of the ground source heat pump in providing the basic building loads and reduce the high first capital, the hybrid ground source heat pump system coupled with supplemental cooling/heat devices has been proposed for a hotel building. The cooling and heating loads of a hotel located in Ji＇ nan have been calculated according to the local weather data and the building function. At the same time, the temperature fields of the underground have been simulated in the cases of single ground source heat pump and the hybrid system of ground source heat pump coupled with the chiller. The simulation results show that the optimal design scheme can solve the problem of thermal imbalance of the surrounding ground during a heating/cooling year, which accordingly improve the heat transfer efficiency of the ground heat exchanger and the whole system performance.
出处
《建筑热能通风空调》
2017年第6期70-72,共3页
Building Energy & Environment
关键词
地源热泵系统
冷水机组
热不平衡率
换热效率
ground source heat pump, chiller, thermal imbalance, heat exchange efficiency
