|
本帖最后由 方林勇 于 2019-7-22 09:19 编辑
各位马友好:我在做本书第六章的模拟例题时,输入完组分后,进行分析时,提示如下问题:
STRUCTURE FOR COMPONENT CH3COCH3 HAS NOT BEEN DEFINED.
PCES CANNOT USE GROUP-CONTRIBUTION METHODS TO ESTIMATE MISSING PROPERTIES
USE THE STRUCTURES PARAGRAPH TO DEFINE STRUCTURES OF THIS COMPONENT.
后面进行RPlug流程模拟时,不能完成收敛,还请各位高手看看咋回事。
Block: PFR Model: RPLUG
* WARNING
TOTAL FLOW IS ZERO
** ERROR
RPLUG EXITED BECAUSE INTEGRATION FAILED. INDEX = (-3)
PROBABLE CAUSE IS INCORRECT KINETICS. CHECK RATE-CON
PARAMETERS AND MOLAR VOLUME CALCULATIONS.
*** SEVERE ERROR
FORTRAN DIVIDE BY ZERO ENCOUNTERED.
** ERROR
BLOCK PFR IS NOT IN MASS BALANCE:
MASS INLET FLOW = 0.21805556E+01, MASS OUTLET FLOW = 0.00000000E+00
ABSOLUTE DIFFERENCE = 0.21805556E+01
CHECK INTEGRATION TOLERANCE AND STOICHIOMETRY OR MOLECULAR WEIGHTS
|
|