The Problem Sprays have a wide range of applications: Spray Droplet Size Distribution Is The single Most Important Parameter In Spray Applications Droplet size defines effectiveness and quality: (i) In Combustion Systems, The Droplets Size Dictates The Combustion Efficiency And Emissions In Spray Cooling; (ii) In Spray Cooling, The Cooling Rate Depends On The Droplet Size; (iii) Droplet Size Determines The Efficiency Of Water Consumption For Cleaning, Etc; The currently available spray droplet size distribution devices are complicated, difficult to use, and costly.