Experimental and numerical study of heat generation by energy dissipation in a rotating drum filled with particulate material

Abstract

This work aims to investigate the generation of heat by dissipation of mechanical energy in particulate flows. The behavior of material in a rotating drum is considered in experimental and numerical analyses. In the physical experiments, the temperature of the particles inside the drum was monitored by means of infrared thermography and the influence of rotation speed and filling ratio was explored. The experimental data were later used to calibrate numerical simulations using the Discrete Element Method (DEM). The numerical results were then analyzed to gain more insights into the mechanisms of heat generation.