GDL construction effects on distribution of reactants and electrical current density in PEMFC
Author(s):
Article Type:
Research/Original Article (دارای رتبه معتبر)
Abstract:
In this article, a two dimensional pore scale model of polymeric fuel cell, which is promising of a clean and renewable energy production, is presented here. Let reactive gases behave as an ideal gas; inhomogeneous anisotropic structure of the gas diffusion layer, is contemplated as a random generated circular porous media. Lattice Boltzmann method is applied to inquire the fluid flow and mass transfer within the cathode microstructure. All parts of the cathode have the same temperature and the electrochemical reaction on the surface of the catalyst layer enters the solution as a boundary condition. Effects of the gas diffusion layer structure (carbon fibers diameters changes) on the flow of reactive gases, molar fraction of various oxygen species, and water vapor within the various parts of the gas diffusion layer as well as the electrical current density are investigated. The results indicate that by increasing the diameter of the carbon fibers in the gas diffusion layer within constant porosity facilitates both the flow of oxygen and the vapor species inside the GDL, while affecting the produced electrical current on the surface of the catalyst layer.
Keywords:
Language:
English
Published:
Journal of Heat and Mass Transfer Research, Volume:6 Issue: 2, Summer-Autumn 2019
Pages:
105 to 116
https://www.magiran.com/p2085590
سامانه نویسندگان
مقالات دیگری از این نویسنده (گان)
-
Evaluation of the Effect of Oxygen-Rich Water as an Adjunct to Supportive Therapy in Improving the Clinical Condition of Patients with COVID-19: A Randomized Controlled, Double-Blind Clinical Trial
Masoud Veissi, Jalil Hashemzadeh, Roohangize Nashibi, Mohammadhosein Haghighizadeh, Zahra Fakhrae, Fatemeh Kardani, , Ali Hashemzadeh, Ali Veissi, Mohammad Sabbaghan
Jundishapur Journal of Microbiology, Jan 2025 -
Numerical Simulations of Spoiler’s Effect on a Hatchback and a Sedan Car Exposed to Crosswind Effect
*, Milad Rohani, MohammadReza Saffarian
Journal of Applied and Computational Mechanics, Spring 2023