Title :
Compare the transport phenomena of compressed and uncompressed carbon cloth GDL in fuel cells
Author_Institution :
Sch. of Automotive Studies, Tongji Univ., Shanghai, China
fDate :
Aug. 31 2014-Sept. 3 2014
Abstract :
An investigation of the transport phenomena of the compressed and uncompressed carbon cloth gas diffusion layer (GDL) based on the integration of X-ray micro-tomography and Lattice Boltzmann (LB) simulation is presented. Compressive stress decreases the thickness of GDL, electrical conductivity, permeability, and affects the pores. In the present paper, we have addressed the effects of stress on pore structure of cloth based GDL. And also research on the fluid flows were driven by applying a pressure gradient in both the through-plane and the in-plane directions of uncompressed and compressed carbon cloth GDLs, the simulated velocity filed at pore scale will be used to estimate the fluid transport in the GDLs.
Keywords :
X-ray microscopy; carbon; lattice Boltzmann methods; proton exchange membrane fuel cells; transport processes; GDL; X-ray micro-tomography; compressive stress; electrical conductivity; fluid flows; fluid transport; fuel cells; gas diffusion layer; lattice Boltzmann simulation; permeability; pore structure; transport phenomena; uncompressed carbon cloth; Boundary conditions; Carbon; Fluid flow; Fluids; Fuel cells; Image coding; Three-dimensional displays; Compressed and Uncompressed; Gas diffusion layer; Lattice Boltzmann method; Transport phenomena;
Conference_Titel :
Transportation Electrification Asia-Pacific (ITEC Asia-Pacific), 2014 IEEE Conference and Expo
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-4240-4
DOI :
10.1109/ITEC-AP.2014.6941141
