What is the purpose of the tangential slots in an oil burner nozzle?

The tangential slots in an oil burner nozzle are specifically designed to atomize the fuel oil effectively and ensure better mixing with the combustion air. When the oil is forced through these slots, it creates a swirling motion that breaks the liquid into smaller droplets. This atomization is essential for achieving complete combustion, as smaller droplets have a larger surface area relative to their volume, which allows for more efficient ignition and burning.

The improved air-oil contact that results from this process enhances the overall efficiency of the burner, leading to better heat generation and reduced emissions. This is particularly important in applications where fuel efficiency and minimizing environmental impact are key considerations. Proper atomization and air mixing are foundational principles in combustion technology that ensure optimal performance of oil burners.