The gas-turbine cycle in Problem 10.28 has qH = 960 kJ/kg air added by combustion. Assume the fuel is methane gas and qH is from the heating value at T0. Find the air-fuel ratio on a mass basis.
Problem 10.28
A sample of pine bark has the following ultimate analysis on a dry basis, percent by mass: 5.6% H, 53.4% C, 0.1% S, 0.1% N, 37.9% O, and 2.9% ash. This bark will be used as a fuel by burning it with 100% theoretical air in a furnace. Determine the air-fuel ratio on a mass basis.