MODELING OF THERMAL PROCESSES IN THERMAL
RESISTORS WITH A POSITIVE TEMPERATURE
COEFFICIENT OF RESISTANCE

V. N. Shut, S. P. Syrtsov, E. L. Gavrilenko, 
and A. V. Gavrilov

UDC 536.21 + 621.319.1

The space-time temperature distribution in materials with 
a positive temperature coefficient of resistance under the action 
of electric current on them has been analyzed by numerical methods. 
The nonstationary boundary-value heat-conduction problem with a 
Nonlinearity of the third kind has been solved. The results obtained 
theoretically have been compared to experimental data.

Institute of Engineering Acoustics, National Academy of 
Sciences of Belarus, 13 Lyudnikov Ave., Vitebsk, 210717, Belarus; 
email: shut@vitebsk.by. Translated from Inzhenerno-Fizicheskii Zhurnal, 
Vol. 78, No. 4, pp. 97-101, July-August, 2005. Original article 
submitted January 27, 2004; revision submitted March 25, 2004.