Error in Routine PEEKI
 

Hi guys,

Here is my simulation: I have a cylindrical tube of 66.5 cm of length and 3 cm of diameter. It's a buyoant, three-phase and porous domains which 2 fluids go through and there is already solid (catalyst) inside. One of the fluids is a liquid (diesel) dispersed phase with hydrogen diluted, the other phase is a gaseous (H2) continuous phase. It has a reactional model which i have to remove sulfur from the liquid and has formation of H2S. Oh, it's operating at 10 MPa pressure and temperature of 643.15 K.

My problem is when I specify the interface equilibrium model through Henry's Law for both H2 and H2S. So when I run the solver with these models active the solver crashes saying it found a error in subroutine PEEKI (I'm posting the error results file). Here is the message:

Details of error:-
----------------
Error detected by routine PEEKI
CDANAM = /FLOW/ALGORITHM/GLOBAL/SUBSYS/MASFRC_SS8 /MASFRC_MT4_FL2 /IDF_VAR_S
CRESLT = NONE

Current Directory : /FLOW/ASSEMBLE/TIME-0/EQUATIONS/MASFRC_MT5_FL1/IELG1

I know it's a typo but I couldn't find this error anywhere. So I will aprecciate a lot if someone give me any kind of direction.

Thanks. (sorry if I did any grammatical mistak, english is not my native language)

Felipe,

are the components in the component pair transported - i.e. specified with transport equations? I believe this is a restriction in the solver, even though CFX-Pre may offer pairs which contain those of type constraint and algebraic.

CG

Gremlim,

Yes, most of them are transported through the fluids.

The specified list of materials in each phase is the following:

Gas Phase: H2 and H2S
Liquid Phase: Diesel with sulfur (aprox. 9% of the phase mass fraction), desulfured diesel, H2 (aprox 1.7% in mass fraction) and H2S.

With an observation, in the boundary conditions (initialization) I'm specifying a mass fraction of value equal to 0 for the H2S in both phases (since it's reaction product).

My set of components pair details:

Liquid: Desulfured Diesel as constraint, sulfured diesel, H2, H2S as transport equations (with kinematic diffusivities calculated through CEL expressions).

Gas: H2 as Constraint and H2S as transport with the same kinematic diffusion of the H2S present in liquid phase (same calculation).

Thanks for the response.

I think H2 needs to be a transport equation in both gas and liquid phases.

CG