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针对不同热源温度、制热温度、循环倍率及溶液浓度等条件,对以氨水溶液为工质的ACHP系统进行理论分析和热力计算。计算结果表明,利用低温地热尾水为热源的ACHP系统用于提供城市区域供热具有较高的COP和较低的压缩比,并得到ACHP系统热力性能随热源温度、制热温度、溶液浓度、循环倍率变化的趋势,为溶液浓度和循环倍率的优化选择提供理论依据。
According to the conditions of different heat source temperature, heating temperature, circulation rate and solution concentration, the theoretical analysis and thermodynamic calculation of ACHP system using ammonia solution as working medium were carried out. The results show that the ACHP system using low temperature geothermal tail water as heat source is used to provide high COP and low compression ratio for urban district heating and the thermal performance of ACHP system is obtained with the heat source temperature, heating temperature, solution concentration, The trend of the change of circulation rate provides a theoretical basis for the optimization of solution concentration and circulation rate.