MEASURING THERMAL CHARACTERISTICS OF THE HEAT EXCHANGER.

New Technologies Research Centre at the University of West Bohemia in Pilsen uses middle-sized wind tunnel experimental facility. The tunnel equipment is extended in order to let us measure also heat transfer: the main wind tunnel duct itself forms the opened cooling air circuit, one closed circuit is there for water based coolant flow and one more closed circuit forms the hot compressed air loop. In this article, the typical measurement of the thermal characteristics of the common water-air heat exchanger is presented. [ABSTRACT FROM AUTHOR]