What condition can lead to poor atomization in an oil burner?

Poor atomization in an oil burner can occur when the oil temperature is very low. At low temperatures, the viscosity of the oil increases, making it thicker and more difficult for the burner to atomize effectively. Atomization is the process of breaking down the liquid fuel into small particles, which is crucial for achieving efficient combustion. When the oil is too viscous, it may not flow properly through the nozzle, leading to larger droplets instead of a fine mist. This results in incomplete combustion, lower efficiency, and potentially increased emissions.

In contrast, high oil temperature can improve atomization by reducing viscosity, allowing the oil to atomize more readily when sprayed into the combustion chamber. Excessive fuel flow can create pressure issues, while low ambient temperatures might not directly impact the atomization process as drastically as low oil temperatures do. Understanding the ideal oil temperature range is crucial for maintaining optimal performance and efficiency in an oil burner system.