I have to calculate the wastage energy of flue gases of oil heater.. exhaust temperature is 300 c, fuel is natural gas and flow rate of fuel is 120 MMBTU/HR , and emission gaseous result is
CO2 8.51%,
O2 5.87%,
CO 120mg/Nm3
NO 130mg/Nm3
NOx 130mg/Nm3
how can I calculate flow rate of flue gases and wasted energy by flue gases.??. PLEASE help me