What is the introduction of air from the fan into the combustion chamber after the oil has exited the nozzle called?

The introduction of air from the fan into the combustion chamber after the oil has exited the nozzle is referred to as secondary air. This air plays a critical role in the combustion process, as it helps to complete the burning of the fuel by ensuring that there is enough oxygen available to achieve efficient combustion.

In oil burners, the primary air is usually mixed with the oil at the nozzle to form a combustible mixture before it enters the combustion chamber. Once the oil has been atomized and ignited, the secondary air enters the chamber to support the ongoing combustion process by promoting a more thorough and efficient burn.

This is essential for optimizing energy output and minimizing emissions, which is a primary concern in combustion technology. Understanding the distinction between primary and secondary air is important for operators who must control combustion efficiency and adhere to safety regulations.