HEAT CONDUCTION AND HEAT EXCHANGE IN TECHNOLOGICAL PROCESSESNONSTATIONARY HEAT AND MASS TRANSFER IN EVAPORATIVE COOLING OF FLOWING LIQUID FILMS
G. V. Dashkov, E. F. Nogotov,* N. V. Pavlyukevich, and V. D. Tyutyuma UDC 536.24 A mathematical model of nonstationary evaporative cooling of a laminar liquid film flowing down a vertical surface in its blowing with a countercurrent steam-air flow has been developed. The problem of heat and mass transfer has been formulated in a conjugate statement. The calculated data on the time change in the temperature and concentration fields in the steam-air flow and the liquid film as well as in the density of the heat flux on the flowing-film surface have been given. *Deceased A. V. Luikov Heat and Mass Transfer Institute, National Academy of Sciences of Belarus, 15 P. Brovka Str., Minsk, 220072, Belarus; email: dgv@hmti.ac.by. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 79, No. 1, pp. 3-10, January-February, 2006. Original article submitted June 20, 2005.