STATEMENT OF BOUNDARY AND CONJUGATIONCONDITIONS FOR PROBLEMS OF 
HEAT TRANSFERIN GRANULAR BEDS ON THE BASISOF A TWO-TEMPERATURE 
MODEL

Yu. S. Teplitskii and V. I. Kovenskii

UDC 532.546

Physically justified boundary and conjugation conditions for problems
of heat transfer in infiltrated granular beds have been formulated within
the framework of the two-temperature model that takes into account the absence
of interphase interaction at the boundaries. It is shown that the classical
Danckwerts conditions are applicable to a gas. The problem of filtration cooling 
of a heat-generating granular bed over which there is an inert bed (pile-up) has
been solved in a new statement. The dependence of the pressure drop in a granular
bed on the mass flow rate of the gas is established. A formula to calculate
the maximum temperature of particles is obtained. The region of applicability
of the one-temperature model is determined.

A. V. Luikov Heat and Mass Transfer Institute, National Academy of Sciences
of Belarus, 15 P. Brovka Str., Minsk, 220072, Belarus; email: kvi@hmti.ac.by.
Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 79, No. 6, pp. 98-106,
November-December, 2006. Original article submitted March 15, 2005.