REVIEW ON GENERATION OF MONODISPERSE SPRAYS FOR MANUFACTURING MICRON-SIZE UNIFORM PARTICLES USING A SPRAY DRYING TECHNIQUE

Recent advances in spraying and atomization technologies exercised in various fields have shown that a spray with narrower drop-size distribution, or even a monodisperse spray, may be advantageous in many ways. Monodisperse droplets with controlled trajectory, highly spherical shape and micron sizes were reported to be generated by several droplet generators. Majority of the existing droplet generators, however, deal with very low feed flow-rates. In this work, a few commonly used monodisperse droplet generators are presented in order to assess a possibility of producing monodisperse sprays of high volumes and using them in commercial spray drying operations. This review paper is also aiming to discuss working principles, advantages and limitations of commonly used droplet generators in other fields.