Exercise- 1
Flame temperature with theoretical air
Calculate theoretical maximum adiabatic flame temperature of fuel gas of composition
 when burnt with theoretical air. Assume fuel and air are mixed at 25oC
Consider 1 mole of fuel gas.
| POC |
Amount (kg mole) |
| CO2 |
0.968 |
| H2O |
1.920 |
| N2 |
7.52 |
Heat balance: Reference Temperature = 25oC
| Sensible heat in air & fuel +Heat of combustion = Heat in products of combustion |
(1) |
Sensible heat of reactants = 0 since they are supplied  .
 |
(2) |
This heat of combustion raises the temperature of POC to the flame temperature.
The heat capacity of POC i. e. Cp’
Where nCO2, nN2 and nH2O are moles of CO2, N2, H2O respectively.
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