Study The Effect Of Water – Gas Shift Equilibrium on Adiabatic Flame Temperature for Alkanes Family Fuels at rich conditions

Abstract

The effect of water –gas shift equilibrium on adiabatic flame temperature for Alkanes family fuels was studied.The calculations of adiabatic flame temperatures werecarried out bydeveloping aprogramby using visual basic 6 language, based on a generalalgorithm meant to compute the equilibrium composition ofproducts for any fuel–oxidizer gaseous mixture. The algorithm is based on the thermodynamic principles. Tencompoundswere considered as products: the fuel (CnH2n+2), CO2, CO, H2O, N2, O2, CH4, C2H6, C3H8, C4H10, H2,their heat were capacities expressed as function of temperaturewith the form: Cp=ao+a1T+a2T2+a3T3. Two methods with and without water –gas shift equilibrium were used to analysis the products gases. The results showed, adiabatic flame temperature calculated with water –gas shift equilibrium greater than that calculated without water –gas shift equilibrium.