What type of air is used primarily in an air atomizing burner?

In an air atomizing burner, compressed air is primarily used because it allows for effective and efficient atomization of fuel. The purpose of an atomizing burner is to create a fine mist of fuel, which enhances combustion efficiency and reduces emissions. Compressed air provides a steady and controlled flow necessary for this atomization process.

When air is compressed, it increases both the energy and velocity of the air exiting the burner, which helps to break the fuel into tiny droplets. This finer spray promotes better mixing with air, leading to a more complete combustion process.

Warm air, low-pressure air, and cool air may not provide the same level of control or efficiency in the atomization process. Warm air may help with vaporization but does not have the energy required for effective atomization at the same level as compressed air. Low-pressure air lacks sufficient force to atomize the fuel properly, and cool air can lead to inefficient combustion due to the lower temperatures involved. Hence, compressed air is the optimum choice for an air atomizing burner.