Methane gas at 400K and 1 atm enters a combustion chambar where it is mixed with air entering at 500K, 1 atm. The products of combustion exit at 1800K and 1 atm with product analysis given in
For operation at steady state, determine the rate of the heat transfer from the combustion chamber in kJ/kmol of fuel. Neglect kinetic and potential energy effect . The average value for the specific heat of methane between 298 and 400K is 38kJ/molK. The balanced chemical equation is as follows:
CH4 + 2.265O2 + 8.515N2 ---> 0.951CO2 + 0.049CO + 0.289 O2 + 8.515N2 + 2H2O
The Cp data for the components is as follows
|Cp/R = A +BT +CT2 + DT-2 Where T is in K from 298 oK|
Enthalpy for all the components involved in above reaction is evaluted by the following General equation
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