Abstract ▼ AI-Helper

Organic Rankine cycle (ORC) system is a promising technology for waste heat recovery from low-temperature heat sources. However, in some applications especially marine engine or ship cooling system, the heat fluctuation from heat source is very large. Because of the large fluctuation, the efficiency...

Organic Rankine cycle (ORC) system is a promising technology for waste heat recovery from low-temperature heat sources. However, in some applications especially marine engine or ship cooling system, the heat fluctuation from heat source is very large. Because of the large fluctuation, the efficiency of system could be reduced and the system might stop working. In order to resolve the problem, this study proposed an ORC system using dual expanders in parallel which can respond to the large heat fluctuation. Both simulation and experiment were conducted and evaluated the performance of an ORC power system. As the experimental results, the maximum isentropic efficiency of each expander was measured about 62%, and the each shaft power was reached to about 2kW at the expander inlet temperature of 130 °C. Moreover, the performance characteristics of the dual parallel expanders ORC system with regards to various heat source conditions will be addressed.

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