Analysis of Alternative Refrigerant in Water Source Heat Pump System

摘要：

Water source heat pumps use water in rivers and lakes,groundwater and sewage as their sources.They provide heating or cooling for buildings from low-grade sources at the cost of a small quantity of high-grade energy.Water source heat pump system has been used worldwide in recent decades,and,synthetic refrigerants,such as R22 are mainly used at present.CFCs and HCFCs will gradually be replaced because of high ODP,and their alternative refrigerant HFCs will also be phased out because of high GWP.As a result,many studies focus on refrigerant friendly to environment,such as CO2.This paper analyzes several refrigerants by comparing the natural refrigerant with synthetic ones,discusses the efficiency of different refrigerants and the feasibility of the use of altemative refrigerant on the basis of the result of analysis,and gives some advices.Equivalent temperature method is used during the analysis.COPh for the trans-critical CO2 cycle is higher than that for the sub-critical cycle using synthetic refrigerants such as R22.

关键词： Water source heat pump Synthetic refrigerant Natural refrigerant Carbon dioxide

作者: Yuntao Jiang Yitai Ma Hongli Wang

作者单位: Thermal Energy Research Institute,Tianjin University,Tianjin,300072 China

会议类型: 国际会议

会议名称: The First International Conference on Building Energy and Environment(第一届建筑能源与环境国际会议)

会议地点: 大连

会议语种:英文

页码: 1537-1543

在线出版日期: 2008-07-01（万方平台首次上网日期，不代表论文的发表时间）