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Session: Poster session
Session starts: Tuesday 13 October, 13:30

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Gequn Shu (Tianjin University, China)
Mingru Zhao (Tianjin University, China)
Hua Tian (Tianjin University, China)

Abstract:
Waste heat from exhaust gas of diesel engine could be recovered to increase engine’s efficiency and decrease exhaust pollution. In this research, an Organic Rankine Cycle (ORC) test bench with thermal oil as heat transfer medium was set up to recovery the waste heat from a 240kW heavy-duty diesel engine. R123 was chosen for working fluid and expansion valve was employed temporarily to investigate the properties of waste heat. Experiments have been conducted to measure the available heat of exhaust gas in the different loads and speeds of engine. The results show the amount and the quality of waste heat that can be potentially recovered by this test bench during different conditions of engine, of which the maximum exergy and the potential power ability are 18.53kW, and 9.67kW separately. The maximum efficiency of exergy and potential power ability are 26.80% and 14.32% separately. Also, with thermal oil cycle integrated, the transient performance of the ORC test bench was investigated.