PERFORMANCES INVESTIGATION OF FINNED TUBE AIR COOLER

Abstract

The paper deals with the problems of measurement of respective operating parameters of air cooler with finned tubes. It is given a PI diagram of the tested refrigeration system. The most important geometrical characteristics of this heat exchanger are shown. Experimental work included measurement of thermal performance on a physical model – the heat exchanger, which cooled the air by using secondary refrigerant, which has not changed phase flowing through the pipes. Flow rates and temperatures of working fluids were varied in defined operating ranges of experimental installation, which were sufficient to make generalization of experimentally obtained data. In conclusion, it is given the most important results that were obtained during the experimental and mathematical analysis of this exchanger in terms of cooling and drying air.