Hi,
I am working on this simulation. I have defined a new chemical in this providing the molecular structure, and the properties data were generated by the NIST TDE in the Aspen. With two other chemicals (water, and glucose) in a mixure once It was solved properly. Then I added another new chemical defining the molecular structure but When I am running the simulation it's showing error. I have reseted the things, done completely new simulation several times but the things are showing the almost same kind of error. Even later the first 'solved' program was created again but it's also showing the error! Some errors are coming surprisingly new and seems they should not be. The typical errors in this simulation are given below:
" << Run reinitialized 16:26:46 Tue Jun 27, 2017>>
->Processing input specifications ...
* WARNING IN PHYSICAL PROPERTY SYSTEM
THE FOLLOWING CONVENTIONAL COMPONENTS WERE NOT IN A DATA BANK.
CHECK DATA BANK NAMES FOR SPELLING.
CID DATA BANK NAME
SURFACTA N23E2
STRUCTURE FOR COMPONENT SURFACTA HAS NOT BEEN DEFINED.
PCES CANNOT USE GROUP-CONTRIBUTION METHODS TO ESTIMATE MISSING PROPERTIES
USE THE STRUCTURES PARAGRAPH TO DEFINE STRUCTURES OF THIS COMPONENT.
* WARNING IN THE "STREAM" PARAGRAPH WHICH BEGINSON LINE 66
STREAM NAME: GLUC
COMPONENT MOLE FLOWS OF SUBSTREAM: "MIXED"
ARE NORMALIZED TO THE TOTAL MOLE FLOW VALUE.
* WARNING IN THE "STREAM" PARAGRAPH WHICH BEGINSON LINE 70
STREAMNAME:SURFA
COMPONENT MOLE FLOWS OF SUBSTREAM: "MIXED"
ARE NORMALIZED TO THE TOTAL MOLE FLOW VALUE.
* WARNING IN THE "STREAM" PARAGRAPH WHICH BEGINSON LINE 74
STREAM NAME: WATER
COMPONENT MOLE FLOWS OF SUBSTREAM: "MIXED"
ARE NORMALIZED TO THE TOTAL MOLE FLOW VALUE.
FlowsheetAnalysis :
COMPUTATION ORDER FOR THE FLOWSHEET:
MIX
->Calculations begin ...
VAPOR PRESSURE MODEL PL0XANT HAS MISSING PARAMETERS:
PLXANT/1ST ELEMENT (DATA SET 1) MISSING FOR COMPONENT SURFACTA
****PROPERTY PARAMETER ERROR
ERRORS ENCOUNTERED IN CALCULATION OF VAPOR-LIQUID K-VALUES USING
OPTION SET UNIFAC FOR KVL.
! Calculations stopped because of missing property parameters
<reset scope>
<reset scope>
->Processing input specifications ...
* WARNING IN PHYSICAL PROPERTY SYSTEM
THE FOLLOWING CONVENTIONAL COMPONENTS WERE NOT IN A DATA BANK.
CHECK DATA BANK NAMES FOR SPELLING.
CID DATA BANK NAME
SURFACTA N23E2
STRUCTURE FOR COMPONENT SURFACTA HAS NOT BEEN DEFINED.
PCES CANNOT USE GROUP-CONTRIBUTION METHODS TO ESTIMATE MISSING PROPERTIES
USE THE STRUCTURES PARAGRAPH TO DEFINE STRUCTURES OF THIS COMPONENT.
* WARNING IN THE "STREAM" PARAGRAPH WHICH BEGINSON LINE 66
STREAM NAME: GLUCOSE
COMPONENT MOLE FLOWS OF SUBSTREAM: "MIXED"
ARE NORMALIZED TO THE TOTAL MOLE FLOW VALUE.
* WARNING IN THE "STREAM" PARAGRAPH WHICH BEGINSON LINE 70
STREAM NAME: SURFACTA
COMPONENT MOLE FLOWS OF SUBSTREAM: "MIXED"
ARE NORMALIZED TO THE TOTAL MOLE FLOW VALUE.
* WARNING IN THE "STREAM" PARAGRAPH WHICH BEGINSON LINE 74
STREAM NAME: WATER
COMPONENT MOLE FLOWS OF SUBSTREAM: "MIXED"
ARE NORMALIZED TO THE TOTAL MOLE FLOW VALUE.
FlowsheetAnalysis :
COMPUTATION ORDER FOR THE FLOWSHEET:
MIX
->Calculations begin ...
VAPOR PRESSURE MODEL PL0XANT HAS MISSING PARAMETERS:
PLXANT/1ST ELEMENT (DATA SET 1) MISSING FOR COMPONENT SURFACTA
****PROPERTY PARAMETER ERROR
ERRORS ENCOUNTERED IN CALCULATION OF VAPOR-LIQUID K-VALUES USING
OPTION SET UNIFAC FOR KVL.
! Calculations stopped because of missing property parameters"
Can anybody advice me how to solve this problem?
Regards,