Experimental study on temperature characteristics of an air-cooled proton exchange membrane fuel cell stack

Luo, Lizhong; Jian, Qifei; Huang, Bi; Huang, Zhiming; Zhao, Jing; Cao, Songyang

doi:10.1016/j.renene.2019.05.085

Cited by 55 publications

(8 citation statements)

References 40 publications

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“…The gradient PTFE doping strategy of Case 6 shows a higher water retaining capacity compared with the other designs as shown in Figure 9, thus improving the performance of air-cooled fuel cells as discussed above. As well as the performance of fuel cell, the uniformity of key variables [42][43][44][45][46], such as species concentration, temperature, voltage and current density, is also a concern factor to be studied. To examine effects of PTFE doping strategy on the uniformity of current density distribution in the CL, the following uniformity factor is defined ( )…”

Section: Effects On the Fuel Cell Performance And Current Density Dis...mentioning

confidence: 99%

“…Therefore, Case 6 design not only improves the fuel cell performance, but also maintains a good current density distribution uniformity. As well as the performance of fuel cell, the uniformity of key variables [42][43][44][45][46], such as species concentration, temperature, voltage and current density, is also a concern factor to be studied. To examine effects of PTFE doping strategy on the uniformity of current density distribution in the CL, the following uniformity factor is defined…”

Section: Effects On the Fuel Cell Performance And Current Density Dis...mentioning

confidence: 99%

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Effects of Cathode Gas Diffusion Layer Configuration on the Performance of Open Cathode Air-Cooled Polymer Electrolyte Membrane Fuel Cell

et al. 2022

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The design of a gas diffusion layer (GDL) is an effective way to manage water transport, thus improving the performance of air-cooled fuel cells. In the present study, three group designs of GDL with polytetrafluoroethylene (PTFE)—uniformly doped, in-planed sandwich doped and through-plane gradient doped—are proposed, and their effects on the performance of air-cooled fuel cells are explored by numerical simulation. The distribution of key physical quantities in the cathode catalyst layer (CCL), current density and the uniformity of current density distribution in the CCL were analyzed in detail. The results show that properly reducing the amount of PTFE in GDL is beneficial to promoting the water retaining capacity of air-cooled fuel cells, and then improving the performance of fuel cells. The performance of the in-plane sandwich GDL design cannot exceed the design with 10% PTFE uniformly doped, and this design will aggravate the uneven distribution of current density in CCL. Compared with the design of GDL with 40% PTFE uniformly doped, the current density can be improved by 22% when operating at 0.6 V by gradient increasing the PTFE content in GDL from the GDL/MPL interface to the gas channel. Furthermore, this design can maintain as good a current density uniformity as uniformly doping schemes.

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Section: Effects On the Fuel Cell Performance And Current Density Dis...mentioning

confidence: 99%

Section: Effects On the Fuel Cell Performance And Current Density Dis...mentioning

confidence: 99%

Effects of Cathode Gas Diffusion Layer Configuration on the Performance of Open Cathode Air-Cooled Polymer Electrolyte Membrane Fuel Cell

et al. 2022

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“…Chabane et al 184 studied metal hydride tank and PEM fuel cell thermal coupling by heating metal hydride tank through convection and proposed an integrated PEM fuel cell system with hydrate tank for vehicle use. Luo et al 185 used an air‐cooled PEM fuel cell stack to analyze the temperature characteristics and employed 60 thermocouples along with a thermal imaging camera for gathering temperature information during operation. Results indicated no significant change in average temperature rate with an increase or decrease in the current step.…”

Section: Thermal Management Of Pem Fuel Cells and Gaps In Technologymentioning

confidence: 99%

Factors influencing the performance of PEM fuel cells: A review on performance parameters, water management, and cooling techniques

Singh

Oberoi

Singh

2021

Intl J of Energy Research

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Summary This paper addresses the effects of critical parameters that affect the performance and lifespan of proton exchange membrane (PEM) fuel cells. Amongst all, control of excess water content and dehydration in PEM fuel cells is the major issue under various operating conditions. Therefore, their effects on cathode, anode, gas diffusion layer (GDL), catalyst layer (CL), and flow channels are summarized in the initial part of this paper. Various active cooling strategies such as air cooling, liquid cooling, and phase change method to extract the waste heat from the stack are represented. The lateral part of this paper throws light on the role of heat pipes, working fluid, and the effect of the addition of nanofluid with pertinent filling ratio (FR) in cooling of PEM fuel cells. This work is intended to aid the selection of cooling methods for PEM fuel cells through the consideration of the variety of affecting parameters preceding major expenditure for wide‐scale production. In future, cost comparison associated with the cooling techniques of the fuel cell would be evaluated.

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“…Therefore, additional air-cooling can be achieved by passing air through flow channels, e. g., by a fan. [154,155,156,157] As for the liquid cooling, the design of the flow channels also plays an important role for air-cooling. [158] Alternatively, reactant supply and cooling circuit can be combined in a so-called 'open-cathode' configuration.…”

Section: Thermal Management Of Pemfcsmentioning

confidence: 99%

Temperature Effects in Polymer Electrolyte Membrane Fuel Cells

et al. 2020

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The behavior of proton exchange membrane fuel cells (PEMFCs) strongly depends on the operational temperatures. In mobile applications, for instance in fuel cell electric vehicles, PEMFC stacks are often subjected to temperatures as low as −20 °C, especially during cold start periods, and to temperatures up to 120 °C during regular operation. Therefore, it is important to understand the impact of temperature on the performance and degradation of hydrogen fuel cells to ensure a stable system operation. To get a comprehensive understanding of the temperature effects in PEMFCs, this manuscript addresses and summarizes in‐ situ and ex‐ situ investigations of fuel cells operated at different temperatures. Initially, different measurement techniques for thermal monitoring are presented. Afterwards, the temperature effects related to the degradation and performance of main membrane electrode assembly components, namely gas diffusion layers, proton exchange membranes and catalyst layers, are analyzed.

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Experimental study on temperature characteristics of an air-cooled proton exchange membrane fuel cell stack

Cited by 55 publications

References 40 publications

Effects of Cathode Gas Diffusion Layer Configuration on the Performance of Open Cathode Air-Cooled Polymer Electrolyte Membrane Fuel Cell

Effects of Cathode Gas Diffusion Layer Configuration on the Performance of Open Cathode Air-Cooled Polymer Electrolyte Membrane Fuel Cell

Factors influencing the performance of PEM fuel cells: A review on performance parameters, water management, and cooling techniques

Temperature Effects in Polymer Electrolyte Membrane Fuel Cells

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