Posted On: Nov 18, 2020
Thermal NOx : Nitrogen and oxygen combine in the combustion air to form thermal NOx at high temperature in a flame. The majority of the NOx formed during the combustion of gases and light oils is thermal NOx.
Fuel NOx: Whereas fuel combustion is formed by the combustion of oxygen in combustion air and nitrogen bound in fuel. Gaseous fuels do not create any serious problems but the oils containing fuel-bound nitrogen, fuel NOx can go up to 50% of the total NOx.
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