Thermal Conductivity and Contact Resistance of Compressed Gas Diffusion Layer of PEM Fuel Cell
نویسندگان
چکیده
منابع مشابه
Effect of Compression on the Effective Thermal Conductivity and Thermal Contact Resistance in Pem Fuel Cell Gas Diffusion Layers
Heat transfer through the gas diffusion layer (GDL) of a PEM fuel cell is a key process in the design and operation a PEM fuel cell. The analysis of this process requires determination of the effective thermal conductivity as well as the thermal contact resistance between the GDL and adjacent surfaces/layers. In the present study, a guarded-hot-plate apparatus has been designed and built to mea...
متن کاملAnalytic determination of the effective thermal conductivity of PEM fuel cell gas diffusion layers
Accurate information on the temperature field and associated heat transfer rates are particularly important in devising appropriate heat and water anagement strategies in proton exchange membrane (PEM) fuel cells. An important parameter in fuel cell performance analysis is the effective hermal conductivity of the gas diffusion layer (GDL). Estimation of the effective thermal conductivity is com...
متن کاملIn-plane Thermal Conductivity of Pem Fuel Cell Gas Diffusion Layers
Heat transfer through the gas diffusion layer (GDL) is a key process in the design and operation of a PEM fuel cell. The analysis of this process requires determination of the effective thermal conductivity. This transport property differs significantly in the through-plane and in-plane directions due to the anisotropic micro-structure of the GDL. In the present study, a novel test bed that all...
متن کاملModeling and Optimization of non - isothermal two- phase flow in the cathode gas diffusion layer of PEM fuel cell
In this paper, a non-isothermal two-phase flow in the cathode gas diffusion layer (GDL) of PEM fuel cell is modeled. The governing equations including energy, mass and momentum conservation equations are solved by numerical methods. Also, the optimal values of the effective parameters such as the electrodes porosity, gas diffusion layer (GDL) thickness and inlet relative humidity are calculated...
متن کاملImpact of anisotropy level of gas diffusion layer on the temperature distribution of a PEM fuel cell cathode electrode
Proton exchange membrane (PEM) fuel cells being employed in fuel cell vehicles (FCVs) are promising power generators producing electric power from fuel stream via porous electrodes. Structure of carbon paper gas diffusion layers (GDLs) applying in the porous electrodes can have a great influence on the PEM fuel cell performance and distribution of temperature, especially at the cathode side whe...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Fuel Cells
سال: 2008
ISSN: 1615-6846,1615-6854
DOI: 10.1002/fuce.200700054