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July 24, 2006, 13:43 |
Species Partial Pressure or Mole Fraction
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#1 |
Guest
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Hi Guys,
I am working on a Fuel Cell model and want to know if there is a way to calculate the individual species PARTIAL PRESSURE or MOLE FRACTION in a cell. I am trying to use the DEFINE_SOURCE macro to calculate the Nernst potential (which uses the partial pressures) and the volumetric heat generation thereby. Is there a way to use the MASS FRACTION to find the Mole fraction of the species..?? Because the Fluent manual has the macro C_YI(cell,thread,i) to access the species mass fraction. Looking forward to your suggestions. Thank you |
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July 25, 2006, 01:15 |
Re: Species Partial Pressure or Mole Fraction
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#2 |
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Ideal gas law:
p_i= UNIVERSAL_GAS_CONSTANT*C_T(c,t)*C_R(c,t)*C_YI(c,t, N_i)/Mw_i p_i = partial pressure, Mw_i = molecular weight of specie i RoM |
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July 25, 2006, 10:21 |
Re: Species Partial Pressure or Mole Fraction
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#3 |
Guest
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Thanks RoM, I'll try it out right away.
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