.FuelCellLib.Layer1D.mem_layer

Information

mem_Layer-Layer1D

This class represents the method of finite volumes to solve the one dimensional problem of the layer. Also in this class all parameter of transport phenomena and control volume of membrane are defined. One of these parameters, "n" is the number of finite volumes of the layer. The simulation can become too slowed if the parameter "n" is very high. The selection of the variable modeling hypothesis is defined by the parameters:
"ModHyp3":Electro-Osmotic drag effect(0:Off,1:On)
"ModHyp4":Electrolyte conductivity dependence(0:Off,1:On)

Parameters

Name	Default	Description
T	340	Operation temperature of membrane layer [K]
av	1e-9	Specific condensation surface [m2/m3]
b	0.001	Material transfer coeficient [m/s]
Ee	0.72	Volumetric fraction of electrolyte
da	1e-5	Thickness of transport phenomena [m]
tau	1	Tortuosity
D2	1e-6	Constant Fick diffusion coefficient for steam water [m2/s]
Dwl	1e-8	Surface diffusion coefficient of H2O, liquid phase [m2/s]
ks	1e4	Electrical conducivity of the solid [S/m]
kpo	1e-2	Constant protonic conducivity of the electrolyte [S/m]
posat	3169	Reference Saturation pressure [Pa]
Tosat	298.16	Reference Saturation temperature [K]
rom	2000	Density of the electrolyte [kg/m3]
roh2ol	972	Density of water [kg/m3]
Mm	1.1	Molar mass of the electrolyte [kg/mol]
n	10	Number of finite elements for membrane layer
ModHyp3	0	Electro-Osmotic drag effect(0:Off,1:On)
ModHyp4	1	Electrolyte conductivity dependence(0:Off,1:On)

References

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