기본 ORC와 재생과정을 적용한 ORC의 효율 비교에 관한 열역학적 해석 연구

The present study was conducted on thermodynamic efficiency of basic and regenerative Organic Rankine Cycle. R113, R123, R245fa, R245ca and Isobutane were adopted as working fluids. 2 types of regenerative ORCs, one with an open feed water heater, and the other with a regenerator were analyzed. The working fluids except R113 showed that the ORC with FWH had higher efficiency than the basic and regenerative ORC with a regenerator. Regenerative ORC that applied feed water heater shows the highest efficiency among three systems.