Authors: SunKook Kim ByeongCheol Won SeokHo Rhi ShiHo Kim JeongHo Yoo JuChan Jang
Publish Date: 2011/03/15
Volume: 40, Issue: 5, Pages: 778-783
Abstract
The present experimental and computational study investigates a new exhaust gas waste heat recovery system for hybrid vehicles using a thermoelectric module TEM and heat pipes to produce electric power It proposes a new thermoelectric generation TEG system working with heat pipes to produce electricity from a limited hot surface area The current TEG system is directly connected to the exhaust pipe and the amount of electricity generated by the TEMs is directly proportional to their heated area Current exhaust pipes fail to offer a sufficiently large hot surface area for the highefficiency waste heat recovery required To overcome this a new TEG system has been designed to have an enlarged hot surface area by the addition of ten heat pipes which act as highly efficient heat transfer devices and can transmit the heat to many TEMs As designed this new waste heat recovery system produces a maximum 350 W when the hot exhaust gas heats the evaporator surface of the heat pipe to 170°C this promises great possibilities for application of this technology in future energyefficient hybrid vehicles
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