Abstract
This article introduces a waste heat recovery system with eight thermoelectric generators (TEGs) to transfer heat to electrical energy from exhaust pipe of an automobile. Simulations and experiments for the TE module used in this system are investigated to perform the feasibility of these applications. A thermal resistor network which is used to estimate temperature difference between TE elements has been conceived. The results would establish the fundamental development of materials which enhance TEG efficiency for vehicles. In addition, the performance of a TEG module is influenced by thermal contact effect. So we clamp the TE module in our experimental apparatus by applying different pressure load to present the relationship between power output and pressure load. Through the simulation, effects upon different configurations of heat sink are also compared. Besides simulations, the system is also designed and assembled. The results would establish the fundamental development of materials which enhance TEG efficiency for vehicles. Copyright © 2009 by ASME.