Improving the design of gas diffusion layers for intermediate temperature polymer electrolyte fuel cells using a sensitivity analysis: a multiphysics approach

Research output: Contribution to journalArticlepeer-review

Standard

Improving the design of gas diffusion layers for intermediate temperature polymer electrolyte fuel cells using a sensitivity analysis : a multiphysics approach. / Chandan, Amrit; Rees, Neil V.; Steinberger-Wilckens, Robert; Self, Valerie; Richmond, John.

In: International Journal of Hydrogen Energy, Vol. 40, No. 46, 14.12.2015, p. 16745–16759.

Research output: Contribution to journalArticlepeer-review

Harvard

APA

Vancouver

Author

Bibtex

@article{7aa84ce4a7304f24a8d5053d5d7c9db7,
title = "Improving the design of gas diffusion layers for intermediate temperature polymer electrolyte fuel cells using a sensitivity analysis: a multiphysics approach",
abstract = "Intermediate temperature (100-120°C) polymer electrolyte fuel cells (IT-PEFCs) offer simplified water and thermal management compared to conventional PEFCs, since any water should exist in the vapour phase, allowing for easier removal. The higher operating temperature also facilitates greater temperature differentials between the fuel cell and the surrounding atmosphere, thus easing the thermal management of an IT-PEFC stack. However, the study of IT-PEFC is still a relatively poorly covered field within the literature and thus little information is available on performance characteristics.We therefore present a simple multiphysics model as a quantitative tool for describing the IT-PEFC. This tool is then used to optimise different materials and parameters within an IT-PEFC. Experimental data is presented as a test of the model, and excellent quantitative agreement is demonstrated.Having validated this model, we present a detailed study of the GDL materials in order to understand the influence of different parameters, namely: (i) porosity, (ii) permeability and (iii) electrical conductivity.We report that the optimal porosity for IT-PEFC operation is 40-50%, whereas that the GDL permeability was found to have little impact on the cell performance.Further, we used the model as a design tool: proposing a novel cell design, taking into account the considerable advantages when using a metallic GDL which yielded potential significant improvements in the system efficiency.",
keywords = "Gas diffusion layer, Intermediate temperature, Metallic meshes and foams, Multiphysics modelling, PEFC",
author = "Amrit Chandan and Rees, {Neil V.} and Robert Steinberger-Wilckens and Valerie Self and John Richmond",
year = "2015",
month = dec,
day = "14",
doi = "10.1016/j.ijhydene.2015.08.001",
language = "English",
volume = "40",
pages = "16745–16759",
journal = "International Journal of Hydrogen Energy",
issn = "0360-3199",
publisher = "Elsevier",
number = "46",

}

RIS

TY - JOUR

T1 - Improving the design of gas diffusion layers for intermediate temperature polymer electrolyte fuel cells using a sensitivity analysis

T2 - a multiphysics approach

AU - Chandan, Amrit

AU - Rees, Neil V.

AU - Steinberger-Wilckens, Robert

AU - Self, Valerie

AU - Richmond, John

PY - 2015/12/14

Y1 - 2015/12/14

N2 - Intermediate temperature (100-120°C) polymer electrolyte fuel cells (IT-PEFCs) offer simplified water and thermal management compared to conventional PEFCs, since any water should exist in the vapour phase, allowing for easier removal. The higher operating temperature also facilitates greater temperature differentials between the fuel cell and the surrounding atmosphere, thus easing the thermal management of an IT-PEFC stack. However, the study of IT-PEFC is still a relatively poorly covered field within the literature and thus little information is available on performance characteristics.We therefore present a simple multiphysics model as a quantitative tool for describing the IT-PEFC. This tool is then used to optimise different materials and parameters within an IT-PEFC. Experimental data is presented as a test of the model, and excellent quantitative agreement is demonstrated.Having validated this model, we present a detailed study of the GDL materials in order to understand the influence of different parameters, namely: (i) porosity, (ii) permeability and (iii) electrical conductivity.We report that the optimal porosity for IT-PEFC operation is 40-50%, whereas that the GDL permeability was found to have little impact on the cell performance.Further, we used the model as a design tool: proposing a novel cell design, taking into account the considerable advantages when using a metallic GDL which yielded potential significant improvements in the system efficiency.

AB - Intermediate temperature (100-120°C) polymer electrolyte fuel cells (IT-PEFCs) offer simplified water and thermal management compared to conventional PEFCs, since any water should exist in the vapour phase, allowing for easier removal. The higher operating temperature also facilitates greater temperature differentials between the fuel cell and the surrounding atmosphere, thus easing the thermal management of an IT-PEFC stack. However, the study of IT-PEFC is still a relatively poorly covered field within the literature and thus little information is available on performance characteristics.We therefore present a simple multiphysics model as a quantitative tool for describing the IT-PEFC. This tool is then used to optimise different materials and parameters within an IT-PEFC. Experimental data is presented as a test of the model, and excellent quantitative agreement is demonstrated.Having validated this model, we present a detailed study of the GDL materials in order to understand the influence of different parameters, namely: (i) porosity, (ii) permeability and (iii) electrical conductivity.We report that the optimal porosity for IT-PEFC operation is 40-50%, whereas that the GDL permeability was found to have little impact on the cell performance.Further, we used the model as a design tool: proposing a novel cell design, taking into account the considerable advantages when using a metallic GDL which yielded potential significant improvements in the system efficiency.

KW - Gas diffusion layer

KW - Intermediate temperature

KW - Metallic meshes and foams

KW - Multiphysics modelling

KW - PEFC

UR - http://www.scopus.com/inward/record.url?scp=84940055330&partnerID=8YFLogxK

U2 - 10.1016/j.ijhydene.2015.08.001

DO - 10.1016/j.ijhydene.2015.08.001

M3 - Article

VL - 40

SP - 16745

EP - 16759

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

SN - 0360-3199

IS - 46

ER -