Abonnement à la biblothèque: Guest

ISSN Online: 2377-424X

ISBN Print: 978-1-56700-421-2

International Heat Transfer Conference 15
August, 10-15, 2014, Kyoto, Japan

Design Optimization of Automobile Exhaust Thermoelectric Generator for Waste Heat Recovery

Get access (open in a dialog) DOI: 10.1615/IHTC15.tel.008789
pages 8021-8032

Résumé

The exhaust of automobile engine contains considerable amount of waste heat, which can be potentially recovered by thermoelectric generator (TEG). Nowadays, it becomes critically important to recover such waste heat for improving the overall energy conversion efficiency due to the increasing demand on energy saving. Moreover, the heat transfer processes need to be optimized to improve the waste heat recovery efficiency. In this study, a three-dimensional model for automobile exhaust thermoelectric generator module (AETEM) system is developed. The heat and fluid flow in exhaust flow field, heat transfer in TEG module, and electron generation and transport are all coupled in this numerical model. The performance and heat and mass transfer characteristics with two designs of the exhaust flow channel are investigated based on this three-dimensional model. It is found that proper design optimization, such as placing fastigiate bafflers in flow channel, can improve the performance of TEG module significantly.