Describe the bug
The attached case is a CSTR simulation for n-butane to isobutane from the well known book: Elements of Chemical Reaction Engineering, 6th Ed. H. Scott Fogler (Example 11-3)
DWSIM solve the CSTR for reactor volume below 2 m3. It is very fast for small volume like V reactor = 0.1 m3, but it takes time for higher value of V and stop convergence around 2 m3. It again converge around 3 m3 but takes alot of time.
NOTE: In attached example, a sensitivity analysis was added for study of n-butane conversion versus reactor volume. The sensitivity works below 2 m3 and stuck at 2m3 with no message for DWSIM.
To Reproduce
The DWSIM simulation is attached.
For comparison a HYSYS simulation with case study is attached, it works well.
Also I have attached a Python file (similar to Fogler) has been attached
Simulation files:
fogler-6th-ed-exmp-11-3.zip
Expected behavior
Reactor shall converge even at high reactor volume as it is seen in Hysys and Python file.
Screenshots
HYSYS Results
Python Results
Desktop (please complete the following information):
- OS: Windows 11
- DWSIM 9.0.5
Describe the bug
The attached case is a CSTR simulation for n-butane to isobutane from the well known book: Elements of Chemical Reaction Engineering, 6th Ed. H. Scott Fogler (Example 11-3)
DWSIM solve the CSTR for reactor volume below 2 m3. It is very fast for small volume like V reactor = 0.1 m3, but it takes time for higher value of V and stop convergence around 2 m3. It again converge around 3 m3 but takes alot of time.
NOTE: In attached example, a sensitivity analysis was added for study of n-butane conversion versus reactor volume. The sensitivity works below 2 m3 and stuck at 2m3 with no message for DWSIM.
To Reproduce
The DWSIM simulation is attached.
For comparison a HYSYS simulation with case study is attached, it works well.
Also I have attached a Python file (similar to Fogler) has been attached
Simulation files:
fogler-6th-ed-exmp-11-3.zip
Expected behavior
Reactor shall converge even at high reactor volume as it is seen in Hysys and Python file.
Screenshots
HYSYS Results
Python Results
Desktop (please complete the following information):