INVESTIGATION OF THE DYNAMICS OF EVAPORATION
OF CONDENSED BODIES ON THE BASIS OF THE LAW
OF SPECTRAL-RADIATION INTENSITY OF PARTICLES
The article is published by way of discussion.

N. I. Nikitenko

UDC 536.42:539.1

The fundamentals of radiation theory and the mechanism 
of evaporation of condensed bodies are presented. The distribution 
functions of particles of a body by energies and by the intensity 
of their transition from one energy level to another in the process 
of evaporation have been obtained based on the law of spectral-radiation 
intensity of the body particles. The temperature dependence of the 
resulting vapor flow on the outer surface of a massive condensed body 
and a thin layer in equilibrium and nonequilibrium states, which, 
in the limit, transforms to the known Hertz-Knudsen formula, has 
been found.

Institute of Technical Thermal Physics, National Academy 
of Sciences of Ukraine, Kiev, Ukraine; email: yaroslav@interpharm.kiev.ua. 
Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 75, No. 3, pp. 
128-134, May-June, 2002. Original article submitted June 11, 2001.

JEPTER74920200214
JEPTER7492014