HEAT TRANSFER IN A PLANE THREE-LAYER SYSTEM 
WITH A HEAT-CONDUCTING NOT-THROUGH ENCLOSURE

A. N. Khutornoi, N. A. Tsvetkov, and
S. I. Skachkov

UDC 699.86.022.3+666.198:691.87

Consideration is given to the laws of formation of temperature 
fields in the structure of the outer three-layer brick wall with the 
use of efficient warmth-keeping jackets and connectors (flexible couplings). 
The influence of the connector on the temperature field of the wall 
has been shown. It has been established that most of the heat arrives 
at the connector through lateral surfaces before the cross section 
with a maximum value of the transmission heat beyond the region of 
possible condensation of a water vapor. After this cross section, 
the heat is removed from the connector to the materials of the outer 
wall. Satisfactory agreement between the calculated and experimental 
results has been obtained.

State Institution "Scientific-Research Institute of Building 
Materials" at Tomsk State University of Architecture and Civil Engineering, 
Tomsk, Russia. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 
75, No. 5, pp. 146-148, September-October, 2002. Original 
article submitted December 11, 2001; revision submitted February 22, 2002.

JEPTER7492020023
JEPTER749203