Effect of the anisotropic thermal conductivity of GDL on the performance of PEM fuel cells

Alhazmi, Nahla; Ingham, D.B.; Ismail, M.S.; Hughes, Kevin J.; Ma, Lin; Pourkashanian, Mohamed

doi:10.1016/j.ijhydene.2012.07.007

Cited by 32 publications

(16 citation statements)

References 16 publications

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“…The result affirmed that permeability was significantly dominated by variations in hydraulic radius and that through‐plane permeability was higher than in‐plane. Alhazm et al 86 moreover affirmed that the power density of PEM fuel cells can be more beneficial by increasing the in‐plane and through‐plane thermal conductivity of the GDL. They additionally found that the temperature gradients affirmed a higher sensitivity to the in‐plane thermal conductivity of the GDL instead of the through‐plane thermal conductivity.…”

Section: Basic Pemfc Operationmentioning

confidence: 99%

A review of gas diffusion layer properties and water management in proton exchange membrane fuel cell system

2020

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Proton exchange membrane fuel cells (PEMFCs) can intensely lessen the emissions from the energy sector through environmentally friendly attributes. This evaluation paper summarizes the key additives of the PEMFC which are associated with water formation and delivery inside the cell. The gas diffusion layer (GDL) plays a key role in reactant gas diffusion and water control in proton exchange membrane (PEM) fuel cells. This paper also reviews updated literature regarding various hydrophobic and hydrophilic materials used for the improvement of the GDL and overall PEMFC performance. A style of carbon and steel-based microporous substrates (MPS) and microporous layer (MPL) and their impact in GDL overall performance are provided. Materials' properties that affect the performance of the MPL consisting of pore sizes, porosity, and permeability are additionally reviewed. Visualization of water in the flow channel and techniques to understand the mechanism of flow is reported. The failure modes related to the membrane electrode assembly (MEA) and typical PEMFC degradation are discussed. Prospects for development and addressing the water management and degradation of PEMFC through the exploration of further experimental and numerical studies are presented. Highlights • Proton exchange membrane fuel cells (PEMFCs) can be a good candidate for several applications • The material property of the GDL influences the overall fuel performance • Water transport if not properly managed can cause poor performance and failure of the fuel cell • There is need to understand how the fuel cell failure is related to the

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Section: Basic Pemfc Operationmentioning

confidence: 99%

A review of gas diffusion layer properties and water management in proton exchange membrane fuel cell system

2020

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“…Alhazmi et al [25] developed a 11-channel, three dimensional model to estimate the performance of PEMFC at different in-plane and through plane GDL thermal conductivities. Improved power density was observed for high GDL thermal conductivities which corresponded to low PEM temperature.…”

Section: Figure 1 Schematic Of Pem Fuel Cellmentioning

confidence: 99%

Large scale model predictions on the effect of GDL thermal conductivity and porosity on PEM fuel cell performance

Rehman¹,

Zafar²

2017

J. Electrochem. Sci. Eng.

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“…The fuel cell showed improved performance with appropriate temperature for a GDL with combined high in-plane and low through-plane thermal conductivities. Alhazmi et al (2013) simply fixed the in-plane (through-plane) thermal conductivity to a certain value and varied the through-plane (in-plane) thermal conductivity to study the effect of anisotropic thermal conductivity. Uniformity of the temperature distribution was enhanced with the increase in in-plane or through-plane thermal conductivity.…”

Section: Effect Of Components On Heat Transfermentioning

confidence: 99%

Interfacial Phenomena and Heat Transfer in Proton Exchange Membrane Fuel Cells

Liu

Guo

et al. 2015

Interfac Phenom Heat Transfer

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Water transport and heat transfer are two critical issues for proton exchange membrane fuel cell (PEMFC) commercialization. Proper water and heat management ensure a sufficient reactant transport to reaction sites and high operating temperature, which requires good understanding of water and heat transport in PEMFCs. In this paper, previous studies about interfacial phenomena related to water transport and heat transfer in PEMFCs are reviewed. The interfacial phenomena in different components are discussed in detail. Experimental works have been conducted to visually observe the liquid water interface in PEMFCs. However, difficulty still remains for investigations of interfacial phenomena. Modeling works on interfacial phenomena in PEMFCs involve lattice Boltzmann, pore network, level set, and volume-of-fluid approaches. Different approaches have been applied for different components of PEMFC, and the liquid water interface can be located in all these approaches. Heat transfer in PEMFCs is also introduced. Various heat sources result in diverse heat transfer phenomena and nonuniform temperature distribution in PEMFCs. The components significantly influence heat transfer in PEMFCs. Coupled heat and water transport is a major issue for PEMFC management, and the heat pipe effect has been identified as an important mechanism of coupled heat and water transport. Cooling is important for PEMFC heat management, especially for PEMFCs with a large active area, high temperature, and stack.

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Effect of the anisotropic thermal conductivity of GDL on the performance of PEM fuel cells

Cited by 32 publications

References 16 publications

A review of gas diffusion layer properties and water management in proton exchange membrane fuel cell system

A review of gas diffusion layer properties and water management in proton exchange membrane fuel cell system

Large scale model predictions on the effect of GDL thermal conductivity and porosity on PEM fuel cell performance

Interfacial Phenomena and Heat Transfer in Proton Exchange Membrane Fuel Cells

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