CO2跨临界水—水热泵供热系统应用理论探讨
Discussion on the CO2 transcritical cycle in water-water heat pump heating system
摘要：
运用当量温度概念对CO2跨临界水－水热泵供热系统进行了研究，指出根据实际情况选择气体冷却器的出口温度和压缩机的出口压力能提高系统的运行效率，并对供热过程中采用能量梯级利用进行了研究，结果表明对热水侧进行梯级利用可提高系统的制热性能系数。
关键词：CO2,跨临界循环,热泵,梯级利用
Abstract：
Researches the heating system used equivalent temperature. Presents the improvement of operation efficiency by choosing the proper outlet temperature of gas cooler and the discharge pressure of compressor according to the practical situation. Studies the step utilization of energy in heating system. The results show that the step utilization of heat water in heat rejection side can improve the coefficient of performance.
Keywords:carbondioxide,transcriticalcycle,heatpump,steputilization