MATHEMATICAL MODELING OF EVAPORATIVE COOLING 
OF WATER IN A MECHANICAL-DRAFT TOWER

A. A. Brin', A. I. Petruchik, and S. P. Fisenko

UDC 536.42:661.426

A mathematical model of the operation of a mechanical-draft 
tower is proposed. The model represents a boundary-value problem for 
five differential equations and for the first time takes into account 
the following parameters: temperature of inflowing water, its discharge, 
mean radius of water droplets, mean air velocity inside the water-cooling 
tower, rate of fall of a droplet, height from which droplets fall, 
and meteorological conditions, including atmospheric pressure. The 
basic parameters of the water-cooling tower influencing its thermal 
efficiency have been revealed. The dissipation of the kinetic energy 
of the air flow due to the air friction against the surface of falling 
droplets has been taken into account.

A. V. Luikov Heat and Mass Transfer Institute, National 
Academy of Sciences of Belarus, Minsk, Belarus; email: pai@ns1.hmti.ac.by. 
Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 75, No. 6, pp. 
68-73, November-December, 2002. Original article submitted 
June 12, 2002.

JEPTER7492020028
JEPTER749208