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 Exhaust gases 8 mm 10 cm 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. iii. Determine the mass flow rate and velocity of air, and also the exhaust flow rate. iv. Finally, determine the reaction rate for fuel.

Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
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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 the stoichiometric air-to-fuel ratio is reduced by 25%.
Air
Fuel
Exhaust gases
8 mm
10 cm
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.
iii. Determine the mass flow rate and velocity of air, and also the exhaust flow rate.
iv. Finally, determine the reaction rate for fuel.
Transcribed Image Text: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%. Air Fuel Exhaust gases 8 mm 10 cm 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. iii. Determine the mass flow rate and velocity of air, and also the exhaust flow rate. iv. Finally, determine the reaction rate for fuel.
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