# Calculating flame temperature

1. Aug 31, 2010

### samblohm

How could someone roughly calculate flame temperature? Lets say that a chemical reaction occurs at 1000F and the specific heat capacity of the reactants averages to 8 J/(mol x K). And the energy released in the reaction was 1000 KJ and the specific heat capacity of the products in 3 J/(mol x K). I really don't see anything else necessary to calculate flame temperature, but I could definitely be wrong. Is is a simple equation or does it require some hardcore computer program?

2. Aug 31, 2010

### Staff: Mentor

For a rough estimate heat balance should be sufficient. For a precise result there is nothing like an experiment. I guess engineers do have specialized formulas for such calculations.

3. Aug 31, 2010

### samblohm

I only looking for a rough estimate. What do you mean by heat balance? How could it be used for a rough calculation?

4. Sep 1, 2010

### Staff: Mentor

Last edited by a moderator: May 4, 2017
5. Sep 1, 2010

### Topher925

It looks like you're after the adiabatic flame temperature, i.e. temperature with no heat transfer. As Borek stated you can determine the adiabatic flame temperature with a simple first law analysis within an accuracy of maybe 30%ish. To calculate a more realistic flame temperature you need to take into account variations in heat capacity, dissociation, radiative heat transfer, etc. This requires some complex code and I think some I think you can download for free. Of course the most accurate method is just to perform an experiment.