Combustion Reaction Issues of MMA

[boyu-dotcom]

I have set up the MMA combustion reaction in FDS, but I encountered "ERROR(101): Problem with REAC 1." I can't find the issue. Can someone help me?

[drjfloyd]

4.2 Common Error Statements

Input File Errors: The most common errors in FDS are due to mis-typed input statements. These errors
result in the immediate halting of the program and a statement like, “ERROR: Problem with the HEAD
line.” For these errors, check the line in the input file named in the error statement. Make sure the
parameter names are spelled correctly. Make sure that a / (forward slash) is put at the end of each
namelist entry. Make sure that the correct type of input data is provided for each input parameter, such
as one real number, several integers, or something else. Make sure there are no non-ASCII characters
being used, as can sometimes happen when text is cut and pasted from other applications or wordprocessing
software. Make sure that the number zero (0) is not typed as the capital letter O and vice
versa. Make sure that the number one (1) is not an exclamation point (!) or lower case letter l. Make sure
apostrophes are used to designate character strings. Make sure the text file on a Unix/Linux machine
was not created on aWindows machine, and vice versa. Make sure that all the parameters listed are still
being used – new versions of FDS often drop or change parameters forcing you to re-examine old input
files.

[boyu-dotcom]

Yes, it is methyl methacrylate, MMA.I want to simulate its burning, but I always fail.

[mcgratta]

Look at the validation cases. I provided you a link.

[boyu-dotcom]

Thank you.But mma and pmma are different substances
Methyl methacrylate (MMA) is an organic monomer, while polymethyl methacrylate (PMMA) is a polymer formed by polymerization of this monomer. Simply put, MMA is the "building material" of PMMA, and the relationship between the two is like the relationship between bricks and brickwork.
I don't know how to reference

[boyu-dotcom]

Sorry, I'm not sure how to quote it.

[mcgratta]

There are case studies in the FDS GitHub repository that involve PMMA pyrolysis, including FAA_Polymers, NIST_Polymers, and `UMD_SBI1.