Study of solar energy powered transcritical cycle using supercritical carbon dioxide
Study of solar energy powered transcritical cycle using supercritical carbon dioxide
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DOI：
10.1002/er.1201
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发表时间：
2006-11
影响因子：
4.6
通讯作者：
Xin‐Rong Zhang;H. Yamaguchi;K. Fujima;Masatoshi Enomoto;N. Sawada
中科院分区：
文献类型：
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作者：
Xin‐Rong Zhang;H. Yamaguchi;K. Fujima;Masatoshi Enomoto;N. Sawada
本文通过实验研究了利用超临界二氧化碳进行太阳能跨临界循环发电和热电联产的性能。实验装置由真空太阳能集热器、减压阀、热交换器和二氧化碳给水泵组成。减压阀用来模拟汽轮机的运行，完成热力循环。不仅在夏季，而且在冬季条件下，对循环性能进行了全面的研究。结果表明，在典型的夏天和冬季，该循环的总输出COP分别为0.548和0.406，可以获得合理的热力效率。该研究显示了太阳能循环作为一种绿色发电/热发电系统的应用潜力。版权所有©2006约翰威利父子有限公司
In this paper, the performance of solar energy powered transcritical cycle using supercritical carbon dioxide for a combined electricity and heat generation, is studied experimentally. The experimental set‐up consists of evacuated solar collectors, pressure relief valve, heat exchangers and CO2 feed pump. The pressure relief valve is used to simulate operation of a turbine and to complete the thermodynamic cycle. A complete effort was carried out to investigate the cycle performances not only in summer, but also in winter conditions. The results show that a reasonable thermodynamic efficiency can be obtained and COP for the overall outputs from the cycle is measured at 0.548 and 0.406, respectively, on a typical summer and winter day. The study shows the potential of the application of the solar energy powered cycle as a green power/heat generation system. Copyright © 2006 John Wiley & Sons, Ltd.