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LTNE approach to simulate temperature of cathode in a PEMFC

Khan, Munir LU ; Yuan, Jinliang LU and Sundén, Bengt LU (2009) 6th International Symposium on Multiphase Flow, Heat Mass Transfer and Energy Conversion
Abstract
The solid phase and fluid phase temperature and species distribution have been calculated numerically in this study. The model considered here consists of catalyst layer, porous-transport layer and the current collector region (rib). Two energy equations approach has been employed in the porous transport layer and one energy equation is solved for the catalyst layer to simulate the temperature distribution. Full multi-component diffusion model and Knudsen effect have been included for the simulation of the species distribution in both catalyst and porous-transport layer. The agglomerate model has been used to simulate the catalyst layer. It has been found that the diffusion coefficient is low in the catalyst layer due to low permeability... (More)
The solid phase and fluid phase temperature and species distribution have been calculated numerically in this study. The model considered here consists of catalyst layer, porous-transport layer and the current collector region (rib). Two energy equations approach has been employed in the porous transport layer and one energy equation is solved for the catalyst layer to simulate the temperature distribution. Full multi-component diffusion model and Knudsen effect have been included for the simulation of the species distribution in both catalyst and porous-transport layer. The agglomerate model has been used to simulate the catalyst layer. It has been found that the diffusion coefficient is low in the catalyst layer due to low permeability and porosity causing stagnation zones and the temperature rise is maximum in the stagnation zones causing local hot spots. (Less)
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organization
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type
Contribution to conference
publication status
published
subject
keywords
Numerical study, two equation energy approach, agglomerate model, diffusion coefficient, stagnation zones
conference name
6th International Symposium on Multiphase Flow, Heat Mass Transfer and Energy Conversion
language
English
LU publication?
yes
id
8ec9f04d-daca-4947-8eed-2cbb168bedd3 (old id 2205864)
date added to LUP
2011-11-21 12:47:30
date last changed
2016-04-16 11:39:36
@misc{8ec9f04d-daca-4947-8eed-2cbb168bedd3,
  abstract     = {The solid phase and fluid phase temperature and species distribution have been calculated numerically in this study. The model considered here consists of catalyst layer, porous-transport layer and the current collector region (rib). Two energy equations approach has been employed in the porous transport layer and one energy equation is solved for the catalyst layer to simulate the temperature distribution. Full multi-component diffusion model and Knudsen effect have been included for the simulation of the species distribution in both catalyst and porous-transport layer. The agglomerate model has been used to simulate the catalyst layer. It has been found that the diffusion coefficient is low in the catalyst layer due to low permeability and porosity causing stagnation zones and the temperature rise is maximum in the stagnation zones causing local hot spots.},
  author       = {Khan, Munir and Yuan, Jinliang and Sundén, Bengt},
  keyword      = {Numerical study,two equation energy approach,agglomerate model,diffusion coefficient,stagnation zones},
  language     = {eng},
  title        = {LTNE approach to simulate temperature of cathode in a PEMFC},
  year         = {2009},
}