Open Cooling Tower Performance Analysis with Two Models and Evaluation of Them in a Packed Tower

At the beginning of this article, using standard method for analysis of open coolingtowers, a computer code (MATPRES) has been compiled which can be used for design and rating of the towers. Then, a new method has been introduced for some types of packed cooling towers. A new computer code (MATDCT) has been presented for problem solving of these kinds of towers. In continuation, with the aim of evaluation of these methods in a packed tower two definitions, mean mass transfer coefficient (hd) and average convection heat transfer coefficient has been introduced. Using these definitions, the possibility of results evaluation of these two methods (DCT,
PRES)has been provided in a packed tower for design and rating situations.