CO_2跨临界循环热力学对比分析

Thermodynamic Comparative Analysis on CO_2 Transcritical Cycle

对带回热器和带膨胀机的CO2 跨临界循环过程应用热力学进行了对比分析。结果表明 ,带回热器的CO2 跨临界循环过程虽然也能够在一定程度上提高系统效率 ,但只要膨胀机的效率达到一定值 。

Comparative analysis on CO 2 transcritical cycles with internal heat exchanger (IHX) or with expander is executed adopting the principles of thermodynamics. The results indicate that the cycle performance with an expander is much better than the cycle performance with an IHX if the efficiency of the expander is up to a certain value.