(Solution) - Liquid propane C3H8 enters a steady flow combustion chamber at 25oC -(2025 Original AI-Free Solution)

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Academic Level: Undergrad. (yrs 3-4)

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Liquid propane (C3H8) enters a steady-flow combustion chamber at 25oC and 1 atm at a rate of 0.4 kg/min where it is mixed and burned with 150 percent excess air that enters the combustion chamber at 12oC. If the combustion products leave at 1200 K and 1 atm, determine
(a) The mass flow rate of air
(b) The rate of heat transfer from the combustion chamber
(c) The rate of entropy generation during this process. Assume T0 = 25oC.