抄録
This paper describes the experimental efficiency of a small organic Rankine cycle (ORC) system for power generation from low temperature heat sources such as waste heat from automobiles and solar energy. In this study, an ORC system with a small output power of 100W with a hot source with temperature ranging from 60 to 90℃ and a cold source with 10℃ was examined. HFC245fa was used as a working fluid. A scroll expander and a trochoidal expander were installed and tested. The expander performance for various rotational speeds, expander efficiency, and thermal efficiency were reported.
