Experimental investigation of the effect of laser radiation on evaporation of a liquid

Abstract

To study the process of model liquid (ML) evaporation under laser irradiation, two experimental samples (ES) in the form of ML reservoirs have been developed: an experimental reservoir with transparent walls, ES1, and an experimental reservoir of metal ES2, as a prototype of a future porous structure. The processes of ML evaporation under constant and discrete laser radiation (LR) of different power were studied. The program and methodology of experiments were developed and preliminary results of ML evaporation processes were obtained, including: current mass and temperature for ES1, ES2. The advantage of the discrete mode of exposure LR over constant mode of LR is shown. In the discrete mode of LR at a distance of 10 mm between the focus of LR and the surface of ES2 at a power of LR of 60 W evaporated ML by 4% more than at constant LR, and at a power of LR of 90 W evaporated ML by 22% more than at constant LR.