Ammonium Nitrate data bank

[leon_aurel]

Hi all,
Right now i'm trying to simulate nitrous oxide plant from decomposition of ammonium nitrate.
Right from the start, i already meet a problem. It seems that Aspen Plus do not have complete data bank
for ammonium nitrate.

I want to ask about what is the proper fluid package/ thermodynamic method for ammonium nitrate decomposition
system. I tried to use ELECNRTL, since i think ammonium nitrate is an electrolyte, and i get this warning/error

WARNING IN PHYSICAL PROPERTY SYSTEM
PARAMETER PLXANT (DATA SET 1) FOR COMPONENT NH4NO-01:
UNREASONABLE VAPOR PRESSURE CALCULATED AT TEMPERATURE UPPER BOUND.
VALUE SHOULD BE LESS THAN MAXIMUM ALLOWABLE VALUE
= 0.10000E+36 N/SQM. PLEASE CHECK YOUR INPUT FOR THE
ANTOINE PARAMETERS.

* WARNING WHILE CHECKING INPUT SPECIFICATIONS
BLOCK NAME: B1 MODEL NAME: RCSTR
PHYSICAL PROPERTY PARAMETER DHFORM OR DHAQFM IS MISSING
FOR THE FOLLOWING COMPONENTS:
NH4NO-01
ABSENCE OF THIS PARAMETER WILL RESULT IN INCORRECT ENTHALPY RESULTS.


WATSON HEAT OF VAPORIZATION MODEL HAS MISSING PARAMETERS:
DHVLWT/1ST ELEMENT (DATA SET 1) MISSING FOR COMPONENT NH4NO-01

DHVLWT/2ND ELEMENT (DATA SET 1) MISSING FOR COMPONENT NH4NO-01

****PROPERTY PARAMETER ERROR
ERRORS ENCOUNTERED IN CALCULATION OF IDEAL GAS PROPS FOR
HIG
PLEASE FIX THE ERRORS, RE-INITIALIZE, AND RUN AGAIN.

Has anyone try simulating the same system? I'll be glad if anyone can help me solve this problem.

Best regards,

[leon_aurel]

forget it..already found the solution..

[pallavi_tamu]

forget it..already found the solution..

Hey what did you do to solve this. I am getting exactly same error.

Thanks
-P

[leon_aurel]

The solution is we can input the missing parameter ourselves, in the properties>parameter>pure component

The definition of each parameter also can be seen in that page when we choose the parameter

BR