Abstract
Inlet fogging of gas turbines has been commonly adopted for the power augmentation of gas turbines. The major benefits of this method are; increase in power output and reduction of NOx levels. This paper covers the results of extensive visualization and experimental studies conducted to understand the phenomena of droplets breakup at different flow conditions. Experimental study of the behaviour of ligament breakup and droplets size distribution is addressed from 0-degree to 10-degree angle of attack. Image processing method was utilized for the measurements of droplets size distribution after the trailing edge of the blade. It is found that the droplets size distribution is governed by the dominance effects of aerodynamics and surface tension forces, and remains the same at a specific position after the trailing edge region. Also, droplets size increases with an increase in blade’s angle of attack and a decrease in air momentum.
