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论文类型：期刊论文

发表时间：2016-05-01

发表刊物：JOURNAL OF THE ENERGY INSTITUTE

收录刊物：SCIE、EI、Scopus

卷号：89

期号：2

页面范围：271-281

ISSN号：1743-9671

关键字：Thermoelectric power generation; Thermoelectric module; Exhaust heat recovery; System modeling; Thermal efficiency

摘要：For the vehicle engine, about 30% of the primary energy is discharged as waste heat in the exhaust gases. The recovering of heat from that is a noticeable promising application of thermoelectric power generation (TEG). In this paper, a novel prototype for two-stage TEG from vehicle exhaust has been proposed. After system modeling, an experiment structure has also been built and tested for further study. Results of both theoretic analysis and experiment show the reasonability for exhaust heat recovery. The prototype can generate a maximum power output of about 250 W when operating at hot side temperature 473 K. The system thermal efficiency can reach 5.35%, it is improved by 32% compared to 4.04% of single stage TEG in the same operating conditions. System optimization and future improvement of the prototype is also discussed. Finally, based on a vehicle made by our research funder, economic value for commercialization in diesel vehicles has been analyzed. (C) 2015 Published by Elsevier Ltd on behalf of Energy Institute.