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CCSI-Toolset / superstructure

This is a model formulation to optimize the structure of a carbon capture system. The main objective of the model is to minimize the total cost, which includes capital, operating, maintenance, utilities, and power costs to achieve at least a 90% CO2 capture target.
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Software use #5

Closed tsilverman1 closed 6 years ago

tsilverman1 commented 6 years ago

Hello, I am trying to learn how to utilize the software. I had it run once but haven't been able to rerun with adjusted input parameters (nor the original inputs). I'm not very familiar with Open Source or how to operate programs. I did see there is a "Status: Terminated due to a licensing error". Any suggestions? Thanks, Tyler

MAZamarripa commented 6 years ago

Hello, Due to the size of the problem (# of variables and constraints) a GAMS license is required to use the code (or use an open source solver).

https://www.gams.com/ Find the GAMS user's documentation https://www.gams.com/latest/docs/UG_MAIN.html

Once you have the GAMS license you should be able to run the code (variable bounds and initialization is important for convergence in this problem). Since, the model is an MINLP program, you can use different solvers, such as: Dicopt, BONMIN, ANTIGONE, BARON (global). Regards, Miguel

ksbeattie commented 6 years ago

@tsilverman1, thank you for downloading the software, trying things out and asking the question. As @MAZamarripa points out a GAMS license is required. If you do obtain a GAMS license, please let us know how it works out for you.

@MAZamarripa, perhaps we should make that GAMS requirement (and other others) more clearly stated in the README.md and the User Manual?

ksbeattie commented 6 years ago

Closing this issue now that @MAZamarripa has updated the readme.

@tsilverman1 please do let us know if you get a chance to test this with a GAMS license. Thanks!