Effect of the two-phase hybrid mode of effervescent atomizer on the atomization characteristics

Abstract

In this paper, the atomization characteristics of an effervescent atomizer were investigated. The velocity, Sauter Mean Diameter (SMD) and atomization cone angle of the droplets were measured using the Phase Doppler Analyzer (PDA) to discuss the effect of different design parameters. The results showed that the atomization was unstable at a small Gas-Liquid Rate (GLR) while the atomization proved gradually by increasing the GLR. The optimal atomization region was at a GLR=0.1. In the atomization process, there existed a typical velocity distribution for the swirl atomizer. The design parameters of atomizer provided a great influence on the Sauter Mean Diameter (SMD) and atomization cone angle. The experiment results showed that some droplets had negative velocities.

State-of-the-Art Review of Effervescent-Swirl Atomizers

“…Liu et al [128] described that the effervescent atomization was unstable at a small GLR while the atomization process proved gradually by increasing the GLR values. On the basis of the conducted research, it was determined the optimal atomization region, which was at a GLR equals 0.1.…”

“…On the basis of the conducted research, it was determined the optimal atomization region, which was at a GLR equals 0.1. In [128], it described that the design parameters of atomizer have significant influence on SMD and atomization cone angle. The method of phase Doppler analyzer points out that the velocity and Sauter mean diameter distributions of the droplets are symmetrical on the discharge orifice center for analyzed swirl atomizers.…”