跨临界CO_2制冷系统采用透平膨胀机的可行性分析

Feasibility analysis on application of turbo expander in carbon dioxide transcritical cycle

对CO2制冷系统中应用膨胀机的研究现状进行了回顾,在此基础上对跨临界CO2制冷循环中采用透平膨胀机的可行性进行了分析。研究表明透平膨胀机完全适用于家用及商用的跨临界CO2制冷/热泵系统,并通过计算实例给出了采用不同方案和效率的透平膨胀机替代节流阀对CO2制冷系统性能的提升效果。

A review of research on expanders used in CO2 refrigeration cycle was made,and the feasibility analysis on the application of turbo expander in CO2 transcritical cycle was carried out.The results show that the turbo expander was suitable for CO2 transcritical cycle.The performance of CO2 refrigeration system with turbo expanders was presented.