Energetic and exergetic analyses of a combined system consisting of a high-temperature polymer electrolyte membrane fuel cell and a thermoelectric generator with Thomson effect

被引：42
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, Peoples R China
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2019年 / 44卷 / 31期
基金：
中国国家自然科学基金;
关键词：
High-temperature polymer electrolyte membrane fuel cell; Thermoelectric generator; Thomson effect; Exergy analysis; Exergy destruction rate; PROTON-EXCHANGE MEMBRANE; WASTE HEAT; PERFORMANCE OPTIMIZATION; THERMODYNAMIC ANALYSIS; ELEVATED-TEMPERATURE; HYBRID SYSTEM; PEMFC; CYCLE; POWER; VEHICLE;
D O I：
10.1016/j.ijhydene.2019.04.215
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A combined system model consisting of a high-temperature polymer electrolyte membrane fuel cell (HT-PEMFC), a regenerator and a thermoelectric generator (TEG) is proposed, where the TEG is applied to harness the generated waste heat in the HT-PEMFC for extra electricity production. The TEG considers not only the Seebeck effect and Peltier effect but also the Thomson effect. The mathematical expressions of power output, energy efficiency, exergy destruction rate and exergy efficiency for the proposed system are derived. The energetic and exergetic performance characteristics for the whole system are revealed. The optimum operating ranges for some key performance parameters of the combined system are determined using the maximum power density as the objective function. The combined system maximum power density and its corresponding energy efficiency and exergy efficiency allow 19.1%, 12.4% and 12.6% higher than that of a stand-alone HT-PEMFC, while the exergy destruction rate density is only increased by 8.6%. The system performances are compared between the TEG with and without the Thomson effect. Moreover, the impacts of comprehensive parameters on the system performance characteristics are discussed. The obtained results are helpful in developing and designing such an actual combined system for efficient and clean power production. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：16918 / 16932
页数：15
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