In fuel-fired process heating, the largest energy loss source is the exhaust stack, so managing airflow is essential to combustion efficiency. Air Fuel Ratio and Excess Air Combustion efficiency depends on using the right amount of air to consume the fuel. In Part I, Stoichiometric Combustion and its Impact on Boiler Efficiency, we discussed stoichiometric combustion, the theoretical position of the optimal amount of oxygen and fuel mixture to produce the most heat possible while achieving maximum combustion efficiency.Īsk how our flow meter can improve your energy management. In part two of this series on combustion control of industrial heat sources, we consider the air-fuel ratio and the balance of using excess air to consume combustibles while minimizing energy from going up the stack in industrial heating sources.
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