.... This design can supply a higher amount of reactant gases to the CLs, dissipates heat and remove excess water more effectively. Numerical model Flow channel cross section Hybrid configuration cp = Specific heat capacity, J/(kg K); D k eff = Effective diffusion coefficient...

... cells (PEFCs). Design/methodology/approach A three-dimensional numerical model of a polymer electrolyte fuel cell with a single straight channel has been developed to investigate the sensitivity of the fuel cell performance to the GDL anisotropic transport properties – gas permeability, diffusivity...

... ν i D ij Relative humidity Numerical model Water management Air-breathing PEM fuel cells a = water activity; A = active area of fuel cell m²; C = molar concentrationmol m⁻³; D = diffusion...

...Karol Kaczmarski Purpose The purpose of this paper is to develop a numerical model of a steam pipeline connecting a boiler with a turbine, with an insulated outer surface. The temperature distribution inside the pipeline wall was compared when was perfectly insulated and when used real insulation...