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A steady-flow combustion chamber is supplied with CO gas
Chapter 15, Problem 89P(choose chapter or problem)
Problem 89P
A steady-flow combustion chamber is supplied with CO gas at 37°C and 110 kPa at a rate of 0.4 m3/min and air at 25°C and 110 kPa at a rate of 1.5 kg/min. Heat is transferred to a medium at 800 K, and the combustion products leave the combustion chamber at 900 K. Assuming the combustion is complete and T0 = 25°C, determine (a) the rate of heat transfer from the combustion chamber and (b) the rate of exergy destruction.
Questions & Answers
QUESTION:
Problem 89P
A steady-flow combustion chamber is supplied with CO gas at 37°C and 110 kPa at a rate of 0.4 m3/min and air at 25°C and 110 kPa at a rate of 1.5 kg/min. Heat is transferred to a medium at 800 K, and the combustion products leave the combustion chamber at 900 K. Assuming the combustion is complete and T0 = 25°C, determine (a) the rate of heat transfer from the combustion chamber and (b) the rate of exergy destruction.
ANSWER:
Step by step solution Step 1 of 11(a)Calculate the specific volume of the carbon monoxideHere, the gas constant of carbon monoxide is ,temperature is and , and pressure is .From the table of molar mass, gas constants and critical-point properties ,select the gasconstant of carbon monoxide asSubstitute for , for and for in equation(1)Calculate the mass flow rate of the carbon monoxideHere, volume flow rate of carbon monoxide isSubstitute for and for\n