Low-Power Optical Irradiation Influence on Alcohols Droplets Evaporation Processes

The data of experimental studies on the evaporation of drops of alcohols (n-propanol, n-butanol, n-pentanol, n-heptanol, n-octanol and n-decanol) in a dry nitrogen atmosphere at gas pressure values of 30, 50, 100 mm Hg are presented at temperature of T = 293 K under the influence of low-power (0.1 W) irradiation with wavelengths of λ = 390, λ = 565, and λ = 625 nm. Based on experimental studies it was established that the greatest effect of irradiation on the change in the rate of evaporation of drops of these substances is observed at pressure values that are much lower than atmospheric, and the greatest effect of increasing the rate of evaporation was observed for irradiation with a wavelength of 390 nm.