In a pressure atomizing fuel oil-burner, atomization of fuel is produced by the _______.

In a pressure atomizing fuel oil-burner, atomization of fuel is produced by the _______.

• A. Burner flame temperature
• B. Burner tip and high pressure fuel
• C. Burner air flow
• D. Oil viscosity

Answer: (B)

In a pressure-atomizing burner, atomization is produced by forcing the oil through a small burner tip at high pressure. The nozzle’s orifice and the high-velocity fuel shear the liquid as it exits, breaking it into a fine spray of droplets that mixes with air for combustion. The flame temperature is a result of combustion, not the cause of atomization. Burner air flow aids mixing, but the primary spray mechanism is the high-pressure fuel forced through the burner tip. Oil viscosity matters in how easily the liquid can be atomized, but it does not drive the atomization itself.

In a pressure-atomizing burner, atomization is produced by forcing the oil through a small burner tip at high pressure. The nozzle’s orifice and the high-velocity fuel shear the liquid as it exits, breaking it into a fine spray of droplets that mixes with air for combustion. The flame temperature is a result of combustion, not the cause of atomization. Burner air flow aids mixing, but the primary spray mechanism is the high-pressure fuel forced through the burner tip. Oil viscosity matters in how easily the liquid can be atomized, but it does not drive the atomization itself.