Heat transfer Enhancement by Ultrasound Waves in an Experimental Heat exchanger
Volume Title: 1
1chemical engineering department, Iran University of science and Technology, Tehran, Iran
2Chemical Engineering Department, Razi University, Kermanshah, Iran
3Department of Chemical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
4Faculty of Energy, Kermanshah university of Technology, Kermanshah, Iran
Heat transfer enhancement and it's efficiency, has always been of interest to designers and engineers in different industries. This paper reports an experimental study on the role of high frequency ultrasound waves on heat transfer rate from a tube. The tube, which was carrying hot water and placed in a cold bath, was exposed to the ultrasound waves with a frequency of 1.7 MHz. The effects of temperature difference along the studied tube and the tube distance from the wave transducer on heat transfer rate was examined. The present study indicate that by using ultrasonic waves overall heat transfer coefficient shows a significant increase from 53% to 122.2%.