Coal combustion- Moisture %
 

Hello I'm currently trying to do coal combustion. I read the manual/tutorials about how to input coal properties. All of these shows you how to input fuel assumming certain % volatiles, % char, % ash. What if your proximate analysis contains moisture level. How would you input the coal's percentage of moisture in fluent

Thank you in advance

Re: Coal combustion- Moisture %
 

Have you tried the "wet combustion" panel in the injection set-up?

Re: Coal combustion- Moisture %
 

Hi!

I'm having similar problem here. I'm trying to simulate biomass combustion with high moisture content using two mixture fraction (volatiles and char). The question is should I include liquid water H2O(l) in the same stream with char? Fuel stream (volatiles) are given empiricaly so water cannot be added there. "Wet combustion" tab is greyed for some reason.

Re: Coal combustion- Moisture %
 

Igor - check out some of the previous discussion on biomass combustion.

Re: Coal combustion- Moisture %
 

I did that but I could not find the reason why "wet combustion" tab is greyed in Fluent (is it maybe usable only for species transport model?). I tried to include moisture by adding H2O(vapor) in char steam and correcting latent heat in materials panel but i'm not sure if it is correct way. I don't exactly know what laws are included for volatile stream and char stream respectively when using two mixture fraction. I would appriciate any help i can get. Thanks in advance, Igor B.