Solution Found!
Liquid propane (C3H8) enters a combustion chamber at 778F
Chapter 15, Problem 1554E(choose chapter or problem)
Liquid propane (C3H8) enters a combustion chamber at 778F at a rate of 0.75 lbm/min where it is mixed and burned with 150 percent excess air that enters the combustion chamber at 408F. If the combustion is complete and the exit temperature of the combustion gases is 1800 R, determine (a) the mass flow rate of air and (b) the rate of heat transfer from the combustion chamber
Questions & Answers
QUESTION:
Liquid propane (C3H8) enters a combustion chamber at 778F at a rate of 0.75 lbm/min where it is mixed and burned with 150 percent excess air that enters the combustion chamber at 408F. If the combustion is complete and the exit temperature of the combustion gases is 1800 R, determine (a) the mass flow rate of air and (b) the rate of heat transfer from the combustion chamber
ANSWER:Step 1 of 6
Liquid propane is burned with 150 percent excess air during a steady-flow combustion process. The mass flow rate of air and the rate of heat transfer from the combustion chamber are to be determined.
Assumptions are
1. Steady operating conditions exist.
2. Air and combustion gases are ideal gases.
3. Kinetic and potential energies are negligible.
4. Combustion is complete.
The molar masses of propane and air are and , respectively (Table A-1E).