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Review on Dimensionless Numbers Relevant for Polymer Electrolyte Fuel Cells

Andersson, Martin LU and Li, Tingshuai (2016) In ECS Transactions 75(14). p.547-552
Abstract (Swedish)
With the concern about global warming, air pollution and energy security, the prospect of using polymer electrolyte fuel cells (PEFCs) in future sustainable and renewable energy conversion systems has achieved substantial momentum. Dimensionless numbers can be determined before construction of a model is started, to make simple estimations on the transport processes, for example, within the porous PEFC GDL. Microstructural parameters, such as tortuosities and contact angles, are frequently treated as fitting parameters used in the respective governing equations, such that unrealistic values could be assumed or properties could not be representative of the corresponding microstructure. This treatment can be avoided if the origin of the... (More)
With the concern about global warming, air pollution and energy security, the prospect of using polymer electrolyte fuel cells (PEFCs) in future sustainable and renewable energy conversion systems has achieved substantial momentum. Dimensionless numbers can be determined before construction of a model is started, to make simple estimations on the transport processes, for example, within the porous PEFC GDL. Microstructural parameters, such as tortuosities and contact angles, are frequently treated as fitting parameters used in the respective governing equations, such that unrealistic values could be assumed or properties could not be representative of the corresponding microstructure. This treatment can be avoided if the origin of the expression is clearly clarified and if geometric properties are not used for fitting. Instead, it is recommended to, when needed, introduce parameters, without a geometrical meaning used only for fitting the model to experimental data, such as the pre-exponential factor in the advanced microstructural approach. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
ECS Transactions
volume
75
issue
14
pages
6 pages
publisher
The Electrochemical Society
external identifiers
  • scopus:84991629051
ISSN
1938-6737
DOI
10.1149/07514.0547ecst
language
Swedish
LU publication?
yes
id
bef18fcf-93c9-4b24-839e-d7b426d89ebe
alternative location
http://ecst.ecsdl.org/content/75/14/547.abstract
date added to LUP
2016-10-08 00:49:51
date last changed
2017-02-24 08:29:52
@article{bef18fcf-93c9-4b24-839e-d7b426d89ebe,
  abstract     = {With the concern about global warming, air pollution and energy security, the prospect of using polymer electrolyte fuel cells (PEFCs) in future sustainable and renewable energy conversion systems has achieved substantial momentum. Dimensionless numbers can be determined before construction of a model is started, to make simple estimations on the transport processes, for example, within the porous PEFC GDL. Microstructural parameters, such as tortuosities and contact angles, are frequently treated as fitting parameters used in the respective governing equations, such that unrealistic values could be assumed or properties could not be representative of the corresponding microstructure. This treatment can be avoided if the origin of the expression is clearly clarified and if geometric properties are not used for fitting. Instead, it is recommended to, when needed, introduce parameters, without a geometrical meaning used only for fitting the model to experimental data, such as the pre-exponential factor in the advanced microstructural approach.},
  author       = {Andersson, Martin and Li, Tingshuai},
  issn         = {1938-6737},
  language     = {swe},
  month        = {08},
  number       = {14},
  pages        = {547--552},
  publisher    = {The Electrochemical Society},
  series       = {ECS Transactions},
  title        = {Review on Dimensionless Numbers Relevant for Polymer Electrolyte Fuel Cells},
  url          = {http://dx.doi.org/10.1149/07514.0547ecst},
  volume       = {75},
  year         = {2016},
}