Performance assessment of a combined system consisting of a high-temperature polymer electrolyte membrane fuel cell and a thermoelectric generator

被引：19
作者：
Guo, Xinru [1 ]
Zhang, Houcheng [1 ]
Yuan, Jinliang [2 ]
Wang, Jiatang [2 ]
Zhao, Jiapei [2 ]
Wang, Fu [2 ]
Miao, He [2 ]
Hou, Shujin [3 ]
机构：
[1] Ningbo Univ, Dept Microelect Sci & Engn, Ningbo 315211, Zhejiang, Peoples R China
[2] Ningbo Univ, Fac Maritime & Transportat, Ningbo 315211, Zhejiang, Peoples R China
[3] Nanyang Normal Univ, Coll Phys & Elect Engn, Nanyang 473061, Henan, Peoples R China
来源：
ENERGY | 2019年 / 179卷
基金：
中国国家自然科学基金;
关键词：
High-temperature polymer electrolyte membrane fuel cell; Thermoelectric generator; Waste heat recovery; Performance assessment; Parametric study; PROTON-EXCHANGE MEMBRANE; POWER-SYSTEM; HEAT-RECOVERY; HYBRID SYSTEM; PEMFC; MODEL; OPTIMIZATION; CHALLENGES; MANAGEMENT;
D O I：
10.1016/j.energy.2019.05.030
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A new combined system consisting of a high-temperature proton exchange membrane fuel cell (HT-PEMFC), a regenerator and a thermoelectric generator (TEG) is developed. The mathematical relationship between the HT-PEMFC operating current density and the TEG dimensionless current is derived, and the operating current density range of HT-PEMFC in which the TEG allowed to work is determined. Power output and efficiency of the combined system are formulated under different operating conditions. Compared with the stand-alone HT-PEMFC, the proposed combined system allows the equivalent power density to increase by 21%. The optimum criteria and general performance characteristics for the complete system are specified. Moreover, the effects of the operating current density, doping level, relative humidity, operating temperature, heat conductivity and figure of merit of the thermoelectric materials on the combined system performance characteristics are revealed. The obtained results may provide some theoretical insights into the design and integration of such an actual combined system. (C) 2019 Elsevier Ltd. All rights reserved.
引用
收藏
页码：762 / 770
页数：9
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