How to calculate Volatile Molecular Weight in Coal Combustion?
 

Hi All,

I am trying to model pure coal combustion in Fluent but I do not know how to calculate Volatile Molecular Weight (Kg/Kmol) using Proximate and Ultimate Analysis. I can calculate mass fraction of C, H, O and N in volatile but I do not know how to use them to get x,y,z and w in CxHyOzNw. Do you have any idea to help me out?

Thanks

Hi,

Molecular Weight of compound can be computed by multiplying the atomic weight (in atomic mass units) of each element in a chemical formula by the number of atoms of that element present in the formula, then adding all of these products together.

Thanks, but the problem is that I do not know the chemical formula and I'm looking for a way to find it. Let me clarify my case: I have 35.61 gr of volatile which is composes of C, H, N, O and S. I know the fraction of each substance as 20.22 gr of C, 4.77 gr of H, 1.54 gr of N, 7.78 gr of O and 1.3 gr of S. Now, I want to know the molecular weight of my volatile or in other word the coefficients of CxHyNpOqSr. Any idea?

Calculation of Volatile Molarmass
 

Hi,
You may get hint from this link:

https://www.sharcnet.ca/Software/Flu...oal_inputs_pdf

Mehulkumar

Volatile Molecular Weight
 

Old post but who knows right?

Take a look at this topic from this work, very good one.

Alganash, Blaid Sasi Abozeid (2015) Numerical investigation of the
combustion processes of various combustion regimes. PhD thesis.

How can Method of simulating the combustion of wood solid fuels in thermal boilers?
 

How can Method of simulating the combustion of wood solid fuels in thermal boilers?

Ansys fleunt fow
 

How can Method of simulating the combustion of wood solid fuels in thermal boilers in Ansys fluent flow?