Energy dissipation study of ultrasound bath to identify suitable zone for better performance of the bath

Abstract

The mapping of an ultrasonic bath was performed to identify suitable zone for carrying out various processes using the bath in an effective manner. The mapping of ultrasonic bath was done with PPB Megasonics instrument known as cavitation meter. The cavitation meter measures the energy intensity (watt per square inch) and frequency of ultrasound. The experimental cavitation energy data helps in accurately placing the vessel in the bath for a better outcome. To obtain the average energy dissipation data throughout the bath, study was carried out by varying the various process parameters such as location of the beaker (P1- P5), height of the beaker (10–40 mm), sonication power (110 and 220 W), sonication frequency (20 – 40 kHz), and sonication bath temperature (35 and 50 °C). The energy dissipation value was recorded by placing the sensor inside the beaker at a fixed height and location. The experiments were performed by applying one factor a time method and it was observed that the average maximum energy dissipation 52 (W/in2) for 210 min was obtained at center position of bath (P5), beaker height 40 mm, power supplied 220 W, frequency 30 kHz, and bath temperature maintained at 35 °C.