A UDF of DEFINE_VR_RATE

Ashley_114 · October 5, 2022, 11:15

Dear Vinerm can you please explain clearly how to express partial pressure in the rate equation using incompressible ideal gas law. I have set operating pressure as 1 atm and initial gauge pressure as zero, and my pressure outlet gauge pressure is also zero.

daniel_66 · January 3, 2023, 10:21

Hi zaixing!
previous I have learned the MSRR reactions for H2 production, fortunately, I have discovered this thread you have written before. here I have a question, I note that the code you posted concluded has more than one reaction defined. however, the Macro DEFINE_VR_RATE returns the reaction rate with rr and rr_t, but in your code, the reaction-1 only returns a real value defined as "r_MSR". can the r_MSR be worked as rr and rr_t?
this thread has posted long ago, I hope you can see this message.

Best regards!

January 3, 2023, 10:21	Argument type confusing question	#22
daniel_66 New Member Daniel Z Join Date: Jan 2023 Posts: 1 Rep Power: 0	Hi zaixing! previous I have learned the MSRR reactions for H2 production, fortunately, I have discovered this thread you have written before. here I have a question, I note that the code you posted concluded has more than one reaction defined. however, the Macro DEFINE_VR_RATE returns the reaction rate with rr and rr_t, but in your code, the reaction-1 only returns a real value defined as "r_MSR". can the r_MSR be worked as rr and rr_t? this thread has posted long ago, I hope you can see this message. Best regards!

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October 5, 2022, 11:15		#21
Ashley_114 New Member M. Asif Join Date: Apr 2017 Posts: 2 Rep Power: 0	Dear Vinerm can you please explain clearly how to express partial pressure in the rate equation using incompressible ideal gas law. I have set operating pressure as 1 atm and initial gauge pressure as zero, and my pressure outlet gauge pressure is also zero.