CHAI Junlin, TIAN Rui, YANG Fubin, et al. Thermo-economic comparative analysis of different organic Rankine cycle system schemes for vehicle diesel engine waste heat recovery[J]. CIESC Journal, 2017, (8): 3258-3265.
In order to have a full recovery of the waste heat from a vehicle diesel engine
simple organic Rankine cycle (ORC) system and dual-loop organic Rankine cycle (ORC) system are compared and investigated. According to bench test results of a vehicle six-cylinder diesel engine
the thermodynamic models and economic models of both ORC systems are established
and the thermo-economic comparative analysis of both ORC systems are done on the basis of the study on waste heat characteristics under engine various operating conditions. The results show that
under engine entire operating conditions
net power output
augmentation proportion of power output and improvement of brake specific fuel consumption (BSFC) of the dual-loop ORC system are better than the simple ORC system
the maximum value are 24.38 kW、8.71% and 8.01% separately; Levelized Energy Cost (LEC) of the dual-loop ORC system is 0.8089 CNY·(kW·h)-1 and 19.26% lower than the simple ORC system.