Thermoelectric topping cycles with scalable design and temperature dependent material properties

SCRIPTA MATERIALIA

卷:111

Article

Yazawa, Kazuaki¹  Shakouri, Ali¹ 

[1] Purdue Univ, Birck Nanotechnol Ctr, W Lafayette, IN 47907 USA

关键词: Thermoelectric materials;    High temperature;    Topping cycle;    Co-generation;    Power generator;   

DOI  :  10.1016/j.scriptamat.2015.05.037

来源: Elsevier

【 摘 要 】

Analysis and optimization of topping thermoelectric generators with bottoming Rankine cycle is presented. Interface temperature between the two cycles is optimized for fuel efficiency. It is shown that the topping thermoelectric generator may increase the system efficiency by 6% for a coal-fired power plant with approximately 0.2-0.3 $/W in material cost. The topping cycle can be a viable large scale application of thermoelectric generators since peak ZT of the material can be optimized in a narrow temperature range without cascading. (c) 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

【 授权许可】

Free