"SALT IN A POROUS MATRIX" SORBENT AND SAWDUST
AS AIR DRIERS FOR VENTILATION SYSTEMS

Yu. G. Korobeinikov,a A. V. Fedorov,a
E. A. Buluchevskii,b and A. V. Lavrenovb

UDC 532.72;669.015.23

The processes of moisture desorption by a sorbent-drier of the type 
of "salt in a porous matrix" and sawdust in convective flow, as well 
as under the acoustoconvective action, have been investigated. 
It has been shown that at a flow velocity of 31 m/s the sorbent has 
a rather prolonged drying stage with a constant rate, and at a flow 
velocity of 13 m/s this drying stage ends faster. It has been esta-
blished that the velocity of the convective flow strongly influences 
the drying process of the sorbent, and the action of the acoustic field 
therewith produced no marked effect on the drying process. Moisture 
desorption from sawdust proceeds with a variable rate, and its intensity 
markedly increases under the action of the acoustic field. The influence 
of acoustic vibrations on the rate of moisture removal has a nonmonotonic 
character.

The kinetics of the process of humidification of the sorbent-drier 
has been investigated. On the basis of the investigations made, a 
basic circuit for ventilating closed rooms by dried air with the use 
of sawdust or an IK-011-1 sorbent-drier has been proposed.

Keywords: acoustoconvective drying, sorbent, sawdust, 
Hartmann oscillator.
 
aS. A. Khristianovich Institute of Theoretical and Applied Mechanics, 
Siberian branch of the Russian Academy of Sciences, 4/1 Institutskaya Str., 
Novosibirsk, 630090, Russia; email: Fedorov@itam.nsc.ru; bInstitute 
for Problems of Hydrocarbon Processing, Siberian branch of the Russian 
Academy of Sciences, Omsk, Russia. Translated from Inzhenerno-Fizicheskii 
Zhurnal, Vol. 82, No. 2, pp. 252-257, March-April, 2009. Original 
article submitted May 14, 2008.