3 replies to this topic

[mydarkoline]

I am trying to do the modelling of the pervaporation system with MS Excel and then link it to Aspen plus using a template provided by Aspen Plus. I get this error message:

*WARNING IN PHYSICAL PROPERTY SYSTEM
NRTL BINARY PARAMETERS FOR ALL COMPONENT PAIRS ARE ZERO,
YOUR RESULTS MAY NOT BE ACCURATE. PLEASE REVIEW AND PROVIDE BINARY
PARAMETERS AS APPROPRIATE.

Block: MEMBRANE Model: USER2
*** SEVERE ERROR
MS EXCEL Interface Reports:
TableData Wrapper
VBTableData object is not created

* WARNING
TOTAL FLOW IS ZERO
* WARNING
TOTAL FLOW IS ZERO　

* WARNING
BLOCK MEMBRANE IS NOT IN MASS BALANCE:
MASS INLET FLOW = 0.48311503E+01, MASS OUTLET FLOW = 0.00000000E+00
ABSOLUTE DIFFERENCE = 0.48311503E+01
CHECK USER SUBROUTINE

Does anyone have ideas as to how to fix this problem? I have tried everything I know in Aspen plus but it is not working. Thanks.

[trungphu]

I came across the same problem as you when following the instruction of Aspen to simulate a ultrafiltration membrane.

Could someone help us out?

[thorium90]

is it possible to post it here? Would help to actually look at it. Who knows, it might turn out to be a software bug!

[Carolina Ruis]

Have anyone found a solution for this error?