Modelling andTesting ofaTurbo-generator System for Exhaust GasEnergy Recovery

Inorder tomeetincreasingly arduous CO2emissiongas. Thepartial recovery ofthis otherwise wasted energy offers targets, various 'more-electric' technologies areemerging.significant potential benefits interms ofincreasing theoverall However, their adoption will result inasignificant increase inthe system efficiency, initial simulation studies predicting afuel peakelectrical load. An attractive solution tomeeting the economyimprovement ofupto6%overtheAutoZeitung' electrical power requirement istogenerate electrical energy from drive cycle compared withconventional alternator technology theexhaust gasbymeansofaturbo-generator system, consisting (4). Furthermore, thegeneration ofpotentially highlevels of ofaturbine-driven, high-speed switched reluctance generatorelectrical powergivestheflexibility to down-size the andan energystorage/power buffer. An energymanagementalternator, orpossibly toremoveit fromthevehicle electrical strategy isimplemented tocontrol thehighly transient power flows tothevarious loads andtheenergy storage device, which sys egastenrecovery islikely tobea may beeither a battery or a super-capacitor bank, or a eyie.nabling,teh