Importance of spray

• Liquid fuels are commonly used in combustion systems, including gas turbines, automobile engines, and rocket engines.


• Combustion efficiency depends upon mixing and intimate contact between liquid fuel and oxidizer (usually air).


• This is achieved by converting bulk liquid fuel stream into a collection of fine droplets in the form of spray. Increased surface area improves contact and rates of evaporation increase manifold.

Spray properties

• It is important to determine the quality of resulting spray so that suitable atomizer can be selected for actual application.