A breakthrough hydrogen and oxygen utilization in a H2-O2 PEMFC stack with dead-ended anode and cathode

Fan, Lixin; Xing, Lu; Tu, Zhengkai; Chan, Siew Hwa

doi:10.1016/j.enconman.2021.114404

Cited by 55 publications

(6 citation statements)

References 53 publications

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“…In addition, our team also found that the proper increase for the curvature of the flow channel can also improve the performance [32]. Zhengkai Tu et al have also been conducted on the flow channel design and water heat transfer of air-cooled fuel cells by some experimental and simulation studies [33][34][35][36][37][38], they found that series configuration provides higher power output at the expense of lower fuel utilization in comparison with parallel configuration. They also studied the effect of ultra-thin steel bipolar plates on fuel cell performance.…”

Section: Introductionmentioning

confidence: 89%

Testing Study of Different Flow Direction and Structure for Air-Cooled Proton Exchange Membrane Fuel Cell

Geng,

Han,

et al. 2023

IEEE Access

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This work was financially supported by Special project of Guangdong Province Department of Education in key fields of ordinary colleges and universities (Research on matching optimization of flow channel and diffusion layer of cathode open air cooled fuel cell based on multi-physic coupling and multiinfluencing factors)(2023ZDZX3078), Mid-term evaluation and countermeasures for motor vehicle pollution reduction in Shenzhen during the 14th Five Year

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Section: Introductionmentioning

confidence: 89%

Testing Study of Different Flow Direction and Structure for Air-Cooled Proton Exchange Membrane Fuel Cell

Geng,

Han,

et al. 2023

IEEE Access

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“…Proton exchange membrane fuel cells, among the foremost potential energy-conversion devices, generate a large amount of low-grade waste heat during operation, which is equivalent to 45%–60% of the total hydrogen energy. 16,17 To ensure that fuel cells operate within the appropriate temperature range and avoid flooding 18,19 and overheating, effective water transport management 20,21 and thermal management 22 are essential. Using waste heat from the PEMFC in a combined cooling, heating and power generation (CCHP) system 23–25 can improve energy gradient utilisation; directing PEMFC waste heat to the MH tank to maintain H 2 desorption can ensure stable system operation.…”

Section: Introductionmentioning

confidence: 99%

Study of a proton exchange membrane fuel cell and metal hydride system based on double spiral structure coupling

Wang,

Zhang

et al. 2024

Sustainable Energy Fuels

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“…It was found that the dip in current could be correlated to the reduced hydrogen content, and a periodic purging mechanism improved the overall performance of the PEMFCs. Fan et al [19] reported the effects of the pressure-based gas purging mechanism and evaluated its effect on the current density. It was found that the voltage of the fuel cell dropped significantly under conditions of high current density, and the dynamic purging process helped recover a significant amount of voltage loss.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study to Understand the Conservation of Hydrogen Through a Dynamic Fuel Supply System in Proton Exchange Membrane Fuel Cells (PEMFCs)

Panisilvam¹,

Wang²,

H³

2022

JEPT

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Reducing and conserving fuel usage is pivotal for any engineering system for the development of a sustainable energy solution. Proton exchange membrane fuel cells (PEMFCs) are one of the promising renewable energy systems that consume hydrogen as their source of fuel to generate electricity. This paper investigate the necessity of the constant supply of fuel (hydrogen) in the PEMFC system to ensure stable operation. We propose that a dynamic supply of fuel could help achieve similar performance and reduce the amount of fuel used. The effect of the multiple dynamic fuel inlet rates (0.3 m/s, 0.2 m/s, and 0.1 m/s) was studied numerically using a validated CFD PEMFC model. A transient inlet condition was introduced to replicate the pulsating effect. It was observed that up to 66% of fuel could be conserved (compared to the constant fuel supply condition) while maintaining the stable performance of the PEMFC under conditions of a dynamic fuel profile. A drop of approximately 29% in PEMFC performance was observed under conditions of a low dynamic fuel profile. The results reveal that the concept of dynamic fuel supply can be exploited to sustain the performance of PEMFC and realize a threshold value of performance under conditions of reduced fuel input.

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A breakthrough hydrogen and oxygen utilization in a H2-O2 PEMFC stack with dead-ended anode and cathode

Cited by 55 publications

References 53 publications

Testing Study of Different Flow Direction and Structure for Air-Cooled Proton Exchange Membrane Fuel Cell

Testing Study of Different Flow Direction and Structure for Air-Cooled Proton Exchange Membrane Fuel Cell

Study of a proton exchange membrane fuel cell and metal hydride system based on double spiral structure coupling

Numerical Study to Understand the Conservation of Hydrogen Through a Dynamic Fuel Supply System in Proton Exchange Membrane Fuel Cells (PEMFCs)

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