CO2环境性质优秀,是较为理想的动力循环工质.针对常规CO2跨临界动力循环冷凝器中工质难以被常规冷却水冷凝的问题,提出一种新型CO2跨临界动力循环,并采用理论分析方法,研究了此循环的循环性能.结果表明,系统内部正循环质量流量保持不变,系统内部逆循环质量流量随冷却终温的升高而升高;循环净输出功率和循环热效率随冷却终温的升高而缓慢降低,随冷却压力的升高而降低;当冷却压力为7.5 MPa,冷却终温为30 5℃时,净输出功率为258.8kW,循环热效率为0.067.
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