# Species Partial Pressure or Mole Fraction

 Register Blogs Members List Search Today's Posts Mark Forums Read

 July 24, 2006, 12:43 Species Partial Pressure or Mole Fraction #1 Priya Guest   Posts: n/a 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

 July 25, 2006, 00:15 Re: Species Partial Pressure or Mole Fraction #2 RoM Guest   Posts: n/a 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 blgypeng likes this.

 July 25, 2006, 09:21 Re: Species Partial Pressure or Mole Fraction #3 Priya Guest   Posts: n/a Thanks RoM, I'll try it out right away.

 Thread Tools Display Modes Linear Mode

 Posting Rules You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is OffTrackbacks are On Pingbacks are On Refbacks are On Forum Rules

 Similar Threads Thread Thread Starter Forum Replies Last Post Wijaya FLUENT 15 May 18, 2016 10:08 saii CFX 2 September 18, 2009 08:07 paean OpenFOAM Running, Solving & CFD 0 November 14, 2008 22:14 chong chee nan FLUENT 0 December 29, 2001 06:13 sivakumar FLUENT 2 July 19, 2001 16:18

All times are GMT -4. The time now is 03:27.