|Autors: Punov, P. B., Evtimov, T., Milkov, N., Descombes, G., Podevin, P.|
Title: Impact of Rankine cycle WHR on passenger car engine fuel consumption under various operating conditions
Keywords: Diesel engine, Fuel consumption, Waste heat recovery, Rankine cycle, Passenger car, Simulation
Abstract: This study presents a comprehensive analysis of the effect of a waste heat recovery system using the Rankine cycle on passenger car engine fuel consumption. The engine studied here is a 2.0liter direct injection diesel engine developed for a passenger car. The maximum engine output power is 101kW at 4000rpm. An engine computational model built with the advanced simulation code AVL Boost was used to estimate the engine power and exhaust gas parameters. A physical model of the Rankine cycle was also developed. Based on the model, a computational code was developed in Python (x,y). The working fluid parameters were determined with the open-source platform CoolProp. The Rankine cycle simulation was conducted over the engine operating map with water as the working fluid. It was found that there is a 7.57% decrease in the fuel consumption at the engine operating point corresponding to a car speed of 160km/h and a decrease of 1.5% at the point corresponding to a speed of 130km/h.
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|The 28th international conference on Efficiency, Cost, Optimization, Simulation and Environmental impact of energy systems - ECOS 2015, pp. 1-13, 2015, France, |
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