CONJUGATE HEAT EXCHANGE OF COOLED POLYMER FILMS IN JET 
PRESSING OF THEM AGAINST A DRUM

V. G. Gorobets

UDC 536.245:541.66

Conditions of heat exchange on the surface of a polymer 
film cooled on a drum in jet pressing of the film against the drum 
surface have been studied. The integral methods of thermal calculation 
of boundary layers have been employed and the contact thermal resistance 
between the film and the drum has been taken into account in developing 
a mathematical model. The local thermal characteristics of the films 
have been obtained. The influence of different parameters on heat-exchange 
conditions has been investigated. Comparison of experimental and calculated 
data has shown their good agreement.

Institute of Technical Thermal Physics, National Academy 
of Sciences of Ukraine, Kiev, Ukraine. Translated from Inzhenerno-Fizicheskii 
Zhurnal, Vol. 75, No. 3, pp. 82-88, May-June, 2002. Original 
article submitted March 27, 2001; revision submitted June 5, 2001.

JEPTER7492020023
JEPTER749203