Experimental investigation on the CO2 transcritical power cycle
Experimental investigation on the CO2 transcritical power cycle
复制标题
CO2跨临界动力循环实验研究
DOI：
10.1016/j.energy.2015.11.074
复制
发表时间：
2016-01
期刊：
影响因子：
9
通讯作者：
Li, Teng
中科院分区：
文献类型：
--
作者：
Pan, Lisheng;Li, Bo;Wei, Xiaolin;Li, Teng
二氧化碳具有良好的环保性能，极有可能成为一种非常理想的动力循环工质。在实验室中，利用滚动活塞式膨胀机建立了CO2跨临界动力循环系统。对其运行参数、发电量和热效率进行了实验研究。利用泵的运行速度和负载阻力来调节运行参数。结果表明，在启动过程中产生的电能突然减少。电功率随变流频率的增加而增大。在变流器频率不变的情况下，电流随负载电阻的增大而减小。在实验研究中，当高压约为11 Mpa，低压约为4.6 Mpa时，所产生的稳定功率可达1100 W左右，热效率为5.0%。虽然等熵效率不理想，但对CO2膨胀机的研究仍有重要意义。
CO2has perfect environmental properties and has great potential to become a very ideal working fluid for power cycle. In the laboratory, a CO2transcritical power cycle system was established, using a rolling piston expander. Experimental study was carried out on the operating parameters, the electric power generated and the thermal efficiency. The pump operating speed and the load resistance were used to regulate the operating parameters. The results showed that there was a sudden decrease for the electric power generated in the start-up process. The electric power rose with increasing the converter frequency. When the converter frequency kept constant, the electric current declined with increasing the load resistance. In the experimental study, the steady electric power generated could reach about 1100 W and the thermal efficiency 5.0% when the high pressure was about 11 MPa and the low pressure was about 4.6 MPa. Though the isentropic efficiency, about 21.4%, was unsatisfactory, it still has important significance for the study on CO2expander.
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DOI：
10.1007/s11431-010-3123-4
发表时间：
2010-06
期刊：
Science China Technological Sciences
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