Comparison of a supercritical carbon dioxide cycle for the caseswith and without reheating

In this research, two different cycles including the simple supercriticalcarbon dioxide cycle and the supercritical carbon dioxide cycle withreheating were studied. The research is done from the point of view ofthe first and second laws. The main goal of this study is the study theeffect of adding a reheater to the system. Modeling of the entire proposedsystem has been done in EES software. The results show that the heaterand heat sink have the maximum amount. According to the results, byconsidering the initial assumptions, the efficiency of the simple s-co۲cycle is ۳۲.۶۸ % while the efficiency of the S-CO۲ cycle with reheatingis ۳۴.۲۳%. The amount of the power produced by the simple S-CO۲ cycleis ۳۴۰.۳ kw and the amount of the power produced by the S-CO۲ cyclewith reheating is ۳۵۶.۵ kw which shows that by reheating, more powercan be produced. Increasing heat source inlet temperature increases theamount of power produced by the systems as well as the exergydestruction rate.

کلیدواژه ها:

Supercritical carbon dioxide cycle ، first and second law analysis ، comparison