DanWBR
[Enhancement] Nonadiabatic-Nonisothermal Operation Mode for Plug Flow Reactor
Right now DWSIM 6.6 supports three modes (type of specs) for PFR simulation:
- Isothermic
- Adiabatic (e.g. Adiabatic-Nonisothermal)
- Outlet temperature (nonisthermal but rarely reflect a real case as it uses a linear change along the reactor)
Rival simulators also support Nonisother operation e.g. nonisothermal-nonadiabatic In this mode you can set an energy stream and reactor exchanges energy with surrounding e.g a shell side fluid.
Is this related somehow? https://sourceforge.net/p/dwsim/discussion/844528/thread/9da7825834/?limit=25#edcd
Is this related somehow? https://sourceforge.net/p/dwsim/discussion/844528/thread/9da7825834/?limit=25#edcd
Not, it is not! But the question come from one of student, and I appreciate your reply and links you provided to him through email, I got the forwarded email. Thank you very much!
I actually working on materials for next semester. There are few lectures on simulation reactors in DWSIM! My previous simulations are mainly on Hysys and Symmetry!
By the way, what I proposed is a real request for enhancement!
I would be happy to share all materials through GitHub once we finished!
I like to contribute but the sad news is I am not familiar with .NET, so I can provide every details for you but I cannot implement the .NET side by myself.
@kookma how should we model the energy stream calculations method? Fixed energy amounts for each section?
Daniel, I am preparing a PowerPoint to show you how other rival software do this! But it seems they use Q as input and then apply it as uniform, so in any control volume (segment) a fixed amount of energy is applied!
This is I think similar to setting outlet temperature which a linear relationship is used!
General idea:
- PFR spec: Toutlet --> use a linear profile for T
- PFR spec: Q --> use a uniform head flux along the reactor
Some good information in this regard plus Python code can be found here:
- https://github.com/jkitchin/f15-06625/blob/master/rxns-book/non-isothermal-pfr.org
- http://websites.umich.edu/~elements/5e/toc/index.html
Other resource
- https://processdesign.mccormick.northwestern.edu/index.php/Reactors
With the release of 7.5.6, now DWSIM is more powerful than ever in simulating tubular reactor. Now if this enhancement is implemented, you can use DWSIM to simulate multi-reactions multi-components tubular reactor in below modes
- isothermal operation
- adiabatic operation
- nonadiabatic -nonisothermal operation
I would be happy to help in future release to add details for shell side, so you can simulate a real reactor like Methanol reactor where there is water in the shell and reactor acts like a shell & tube exchanger with reactions inside tubes.
@kookma I can prioritize this if you or someone from your team become a Sponsor: https://github.com/sponsors/DanWBR
Well sure! I send you some details through email! I would also be happy to help during development and test.