International Journal of Energy Science and Engineering
Articles Information
International Journal of Energy Science and Engineering, Vol.1, No.2, May 2015, Pub. Date: May 28, 2015
Experimental and Lattice Boltzmann Method Investigation of Direct Methanol Fuel Cell Performance
Pages: 71-84 Views: 4075 Downloads: 1164
Authors
[01] Mojtaba Aghajani Delavar, Faculty of Mechanical Engineering, Babol Noshirvani University of Technology, Babol, Islamic Republic of Iran.
[02] Ebrahim Alizadeh, Faculty of Mechanical Engineering, Babol Noshirvani University of Technology, Babol, Islamic Republic of Iran.
[03] Seyed Soheil Mousavi Ajarostaghi, Faculty of Mechanical Engineering, Babol Noshirvani University of Technology, Babol, Islamic Republic of Iran.
Abstract
This study experimentally and numerically investigates the effects ofthe feed methanol concentration and temperature on the Direct Methanol Fuel Cell performance. An in house fabricated DMFC with 10×10cm2 active area was used in experimental sets.A two dimensional lattice Boltzmann model with 9 velocities was used in this study. The computational domain includes all seven parts of DMFC: anode channel, catalyst and diffusion layers, membrane and cathode channel, catalyst and diffusion layers. The model was used to predict the flow pattern and concentration fields of different species in both clear channels and porous layers. Good agreement observed between experimental and numerical results. The cell voltage decreases for higher values of feed methanol concentrations due to higher rates of methanol crossover. Cell voltage increases with cell temperature increase, since both anode and cathode kinetics improve as temperature increases.
Keywords
Simulation, Fuel Cell, Porous Media, Temperature, Lattice Boltzmann Method
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