Modeling of ultrasonic enhancement on membrane distillation

摘要

Ultrasonic technology is successfully applied to enhance the permeate flux of membrane distillation. In this study, two major mechanisms of ultrasonic enhancement on membrane distillation, ultrasonic cavitation and acoustic streaming, are formulated in an analytical modeling. Ultrasonic induced membrane vibration, ac oustic energy dissipation in viscous fluid, and membrane absorption and transmission of acoustic energy are also included in the modeling approach.