Research on influencing factors of heat transfer enhancement fins in fuel cell cooling channel
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ORIGINAL PAPER
Research on influencing factors of heat transfer enhancement fins in fuel cell cooling channel Guangyao Tong 1 & Xiaoming Xu 1 & Qiuqi Yuan 1 & Yi Yang 1 & Wei Tang 1 & Xudong Sun 1 Received: 13 September 2020 / Revised: 1 November 2020 / Accepted: 13 November 2020 # Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract PEMFC gradually entered the field of vision of scholars and aroused widespread attention and research, because it has the characteristics of high efficiency, no pollution, and low noise. Traditional PEMFC thermal management system has low efficiency and poor temperature distribution uniformity. This article innovatively proposed a method of using enhanced heat exchange fins for PEMFC thermal management system and established a multi-field coupling simulation model to study the influence of the design parameters of the enhanced heat exchange fins on the temperature of PEMFC, and the optimal fin design scheme is proposed. The results indicated that the fins have an excellent heat transfer enhancement effect, effectively reducing the temperature of each sub-component of PEMFC. Otherwise, different fin angle and fin length have a positive effect on the performance of the thermal management system. Then the design experience of this article can be provided to scholars for reference. Keywords PEMFC . Thermal management . Cooling channel . Enhanced heat transfer . Fins
Introduction Since the twenty-first century, due to the widespread use of petrochemical energy sources, the greenhouse effect had become more and more serious. Lithium-ion batteries [1] and fuel cells have gradually become the focus of research in the energy field of various countries due to their green environmental protection and energy saving advantages. The thermal runaway problem of lithium batteries has not been properly solved [2], and the fuel cell proton exchange membrane has gradually entered the field of vision of researchers. In addition to the advantages of general fuel cells, PEMFC also has the advantages of high specific power, simple structure, and low operating temperature. As a power supply device, it is widely used in the transportation industry and other movable facilities [3, 4]. The theoretical energy conversion rate of PEMFC exceeds 80%, but in reality, it is only 40~50%, and a large amount of
* Xiaoming Xu [email protected] 1
School of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang 212013, China
energy is converted into heat energy. If a large amount of heat energy is not taken away in time, the internal temperature of the fuel cell will be too high, and the water content in the proton exchange membrane will decrease, which will seriously cause the proton exchange membrane to lack water, attenuate the electrochemical reaction, and reduce the performance and life of the fuel cell [5]. Similarly, when the temperature is too low, the degree of chemical reaction will also attenuate, the influence caused by polarization phenomenon will gradually increase, the energy
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