An experimental study of cell performance and pressure drop of proton exchange membrane fuel cells with baffled flow channels

Chen, Hao; Guo, Hang; Ye, Fang; Fang, Chong

doi:10.1016/j.jpowsour.2020.228456

Cited by 61 publications

(18 citation statements)

References 43 publications

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“…One of the advantages of the channel design in this work is the very low pressure drop in all cases. The pressure drop in the traditional channel (DN1) is 35.62 Pa, whereas the maximum pressure drop is 31.87 Pa of DN7, which is much lower than the other flow fields, for example, 400–900 Pa at 0.4 V of the baffled channel, 24 ~1.5 × 10 4 Pa at 1.0 A cm −2 of the dead‐end channel with through‐plane array, 38 and ~ 5 × 10 4 Pa of the traditional interdigitated flow field 52 …”

Section: Resultsmentioning

confidence: 86%

“…To maintain sufficient reactant supply, excellent water removal, and low pressure drop, various novel flow field designs have been proposed and studied 23–30 . For instance, Chen et al 23 invented a porous‐blocked baffled flow channel, in which porous blocks were installed between GDL and baffles.…”

Section: Introductionmentioning

confidence: 99%

“…A two‐phase flow, nonisothermal model was developed to investigate the mass transport mechanisms and optimize the porosities of the blocks at different locations along the channel for the improved cell performance and reduced pumping power. In their later work, 24 the baffled channel with three different leeward lengths along the flow field channels was designed and the pumping power, net power, and power density were experimentally studied. A most recent modeling work on the combination of baffles and secondary porous layer has been done by Mihanovic et al, 25 in which the complete formulation of Forchheimer inertial effect was applied.…”

Section: Introductionmentioning

confidence: 99%

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Reinforcement of proton‐exchange membrane fuel cell performance through a novel flow field design with auxiliary channels and a hole array

Wang

Chen

et al. 2021

AIChE Journal

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A novel flow field was designed by deploying auxiliary channels inside the partially hollow ribs and drilling a series of arrayed holes on the auxiliary channels. This novel design rationally utilizes the ribs of the current collector and improves the volumetric efficiency of the parallel channels, leading to improved cell performance and homogeneity of current distribution. A three‐dimensional, two‐phase flow model was developed to analyze the influence of a variety of parameters on the oxygen and water saturation profiles, cell performance, and current uniformity. It was found that the combination of auxiliary channels and hole array provides an extra pathway for reactant transport and water removal. A reasonable optimization of the flow field geometry, for example, the hole size, the area ratio of arrayed holes and auxiliary channels, nonuniform distribution of arrayed holes, could further improve the cell performance and current uniformity at an extremely low pressure drop.

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Section: Resultsmentioning

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Reinforcement of proton‐exchange membrane fuel cell performance through a novel flow field design with auxiliary channels and a hole array

Wang

Chen

et al. 2021

AIChE Journal

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“…Chen et al 85 mentioned the effects of pressure drop characteristics of baffled and straight flow channels on PEM fuel cells at various temperatures from experiments. Increasing baffles noticed the increase in net power and a 45.14% reduction in power efficiency was observed if baffles had no leeward side.…”

Section: Parameters Influencing the Performance Of Pem Fuel Cellmentioning

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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“…In terms of critical information extraction, techniques are mainly divided into two main categories: physicochemical tests, such as pressure drop measurement, neutron imaging, and magnetic resonance imaging; electrochemical methods: such as polarization curve, current pulse injection, and electrochemical impedance spectroscopy (EIS) [9]. The gas pressure drop between channel inlet and outlet is an effective signal for the determination of gas transfer resistance, which is closely associated with flooding failure, but it seems that drying information cannot be obtained [10]. Neutron imaging and magnetic resonance imaging can realize internal in situ measurement but are not suitable for on-board applications due to limitations of measurement and price [11].…”

Section: Introductionmentioning

confidence: 99%

A Multi-Stage Fault Diagnosis Method for Proton Exchange Membrane Fuel Cell Based on Support Vector Machine with Binary Tree

Xie¹,

Wang

Zhu³

et al. 2021

Energies

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The reliability and durability of the proton exchange membrane (PEM) fuel cells are vital factors restricting their applications. Therefore, establishing an online fault diagnosis system is of great significance. In this paper, a multi-stage fault diagnosis method for the PEM fuel cell is proposed. First, the tests of electrochemical impedance spectroscopy under various fault conditions are conducted. Specifically, prone recoverable faults, such as flooding, membrane drying, and air starvation, are included, and different fault degrees from minor, moderate to severe, are covered. Based on this, an equivalent circuit model (ECM) is selected to fit impedance spectroscopy by the hybrid genetic particle swarm optimization algorithm, and then fault features are determined by the analysis of each model parameter under different fault conditions. Furthermore, a multi-stage fault diagnosis model is constructed with the support vector machine with the binary tree, in which fault features obtained from the ECM are used as the characteristic inputs to realize the fault classification (including fault type and fault degree) online. The results show that the accuracy of the basic fault test and subdivided fault test can reach 100% and 98.3%, respectively, which indicates that the proposed diagnosis method can effectively identify flooding, drying, and air starvation of PEM fuel cells.

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An experimental study of cell performance and pressure drop of proton exchange membrane fuel cells with baffled flow channels

Cited by 61 publications

References 43 publications

Reinforcement of proton‐exchange membrane fuel cell performance through a novel flow field design with auxiliary channels and a hole array

Reinforcement of proton‐exchange membrane fuel cell performance through a novel flow field design with auxiliary channels and a hole array

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

A Multi-Stage Fault Diagnosis Method for Proton Exchange Membrane Fuel Cell Based on Support Vector Machine with Binary Tree

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