What is the approximate amount of excess air needed for the combustion of fuel oil?

The approximate amount of excess air needed for the combustion of fuel oil typically ranges between 10-15%. This range ensures that fuel is burned efficiently, allowing for complete combustion while minimizing the formation of pollutants such as carbon monoxide and unburned hydrocarbons. Excess air helps to ensure that all of the fuel is consumed by providing more oxygen than theoretically required.

In combustion processes, the ideal ratio of fuel to air can vary depending on the type of fuel and specific combustion system but generally, when dealing with fuel oils, a 10-15% excess air is a practical standard. This not only enhances combustion efficiency but also ensures operational safety and reliability of the burner system by preventing incomplete combustion and potential soot formation.

Choosing an amount of excess air outside of this range could lead to either unreliable burner operation or increased emissions, making the 10-15% excess air a widely accepted standard for proper fuel oil combustion.