Monitorization of Cleaning Processes from Digital Video Spatiotemporal Analysis: Cleaning Kinetics from Characteristic Times

The cleaning process kinetics of metallic surfaces has been studied by means of digital video monitoring. Two theoretical models based on experimental observations are proposed for two possible cleaning kinetics mechanisms and two practical cases that can be adapted to these models are analyzed. As a kinetic parameter, the duration of the cleaning of a metallic surface is defined from the time evolution of the color intensities and their variance. These times allow us to characterize and to optimize the cleaning process procedure. Apparent activation energies are estimated from the characteristic times at different temperatures.