Q4 (a) Propane is combusted with dry air inside a combustion chamber (Figure Q4) at a fuel rich environment for which th

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Q4 A Propane Is Combusted With Dry Air Inside A Combustion Chamber Figure Q4 At A Fuel Rich Environment For Which Th 1 (85.96 KiB) Viewed 33 times

Q4 (a) Propane is combusted with dry air inside a combustion chamber (Figure Q4) at a fuel rich environment for which the stoichiometric air-to-fuel ratio is reduced by 25%. Fuel Air 8 mm 10 cm Exhaust gases 50 cm Figure Q4 i. Derive the combustion equation under this condition and its equivalence ratio. ii. At the fuel Reynolds number of 4500, determine the velocity and mass flow rate of fuel. Propane Air iii. Determine the mass flow rate and velocity of air, and also the exhaust flow rate. iv. Finally, determine the reaction rate for fuel. (b) If a secondary combustion process is used to fully burned any residual fuel component in the exhaust gases, write down i. The chemical reaction for this process. ii. The reaction rates for production and consumption of the unburned fuel component. Table Q4: Properties of air and propane Density=1.808 kg/m³, viscosity = 8.196x 10 kg/(m-s) Density=1.225 kg/m³, viscosity = 1.81x105 kg/(m-s)