Liquid octane (C; H1s) is burned with air in the furnace. The orsat analysis of flue gas shows 8.2% CO2, 1.8% CO, 7.28% O2 and 82.72% N2. Temperature and pressure of exiting gas are 2000°R and 20 psi....

Material and energy balance

Extracted text: Liquid octane (C; H1s) is burned with air in the furnace. The orsat analysis of flue gas shows 8.2% CO2, 1.8% CO, 7.28% O2 and 82.72% N2. Temperature and pressure of exiting gas are 2000°R and 20 psi. The volume rate of exiting gas is 100,000 ft³/min.Calculate: a) Percent excess air b) The mass of fuel (Cs H18) input to furnace in lbm/min. Standard condition: V=359ft³/lb mole, T=492°R, P=14.7 psi Atomic weight: C=12, H=1