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以8种有机工质(R134a.,R22,R32,R227ea,R143a,R218,RC318,R152a)作为研究对象,对其超临界有机朗肯循环的单位净输出功、循环效率、循环功比、膨胀机入口体积流量等参数进行了理论分析,结果表明以R152a和R134a为工质的超临界有机朗肯循环具有较高的单位净输出功和循环效率,以及较小的体积流量。而采用回热循环可进一步有效提高循环效率。
Based on the experimental data, the net work output, cycle efficiency, cycle power ratio, swell of the eight organic refrigerants (R134a, R22, R32, R227ea, R143a, R218, RC318 and R152a) Machine inlet volume flow and other parameters were analyzed. The results show that the supercritical organic Rankine cycle with R152a and R134a as the working medium has higher net work output and circulation efficiency, and smaller volume flow. The use of regenerative cycle can be further effectively improve the cycle efficiency.