The best selection of duct fan co-operating with a surface cooler or air

Authors: K. Filek, B. Nowak, J. Roszkowski

This work takes into consideration the problem of the best selection of a fan forcing airflow through a mining counter-current cooler operating indirectly.

The maximum thermal power a fan - cooler system, which is equal to a steady state, was assumed as the criterion of such a cooperation.

To determine this power a mathematical model (simplified, but taking into account condensation of water vapour) describing the instribution of temperature of air and its humidity, and temperature of a heat exchanger and cooler water along a cooler was used.

Calculations were done for a Polish mining cooler of air GCCP-115 for two different states of air which was being cooler.

This cooler cooperated with duct fans of four types: WLE-804AM, WLE-1003B and WLE-1004A.

The results of these calculations are presented in tables and graphs.