Imperial College London


Faculty of EngineeringDyson School of Design Engineering

Head of the School of Design Engineering



+44 (0)20 7594 7049p.childs Website CV




Studio 1, Dyson BuildingDyson BuildingSouth Kensington Campus






BibTex format

author = {Hounsam, S and Stobart, RK and Cooke, AO and Childs, PRN},
title = {Energy Recovery Systems for Engines. SAE Paper 2008-01-0309},
year = {2008}

RIS format (EndNote, RefMan)

AB - Energy recovery from IC engines has proved to be ofconsiderable interest across the range of vehicleapplications. The motivation is substantial fuel economygain that can be achieved with a minimal affect on the“host” technology of the vehicle.This paper reviews the initial results of a research projectwhose objective has been to identify system conceptsand control methods for thermal recovery techniques. Avapour power cycle is the means of energy transfer. Thearchitecture of the system is considered along withsupport of the fuel economy claims with the results ofsome hybrid vehicle modelling. An overview of the latestexperimental equipment and design of the heatexchanger is presented. The choice of controlarchitecture and strategy, whose goal is overall efficiencyof the engine system, is presented and discussed. Someinitial control results are presented. One importantproject aim is to identify and implement an optimalcontrol method that allows an explicit balance, betweenthe IC engine output and the recovered work from thevapour power cycle.Initial simulation work shows that there are significant,potential, fuel economy advantages, between 6% and31%, and that high efficiencies can be achieved atpractical operating pressures. Conclusions point to theneed to investigate and develop the system controldynamics.
AU - Hounsam,S
AU - Stobart,RK
AU - Cooke,AO
AU - Childs,PRN
PY - 2008///
TI - Energy Recovery Systems for Engines. SAE Paper 2008-01-0309
ER -