Determination of the heat transfer coefficient by the inversion method

Abstract

The surface of a blank, cast on the continuous casting equipment, is cooled by water nozzles. The intensity of heat dissipation for individual nozzles cannot be practically determined directly on the casting machine therefore it is investigated on a laboratory model of the Department of Thermal Engineering. A physical quantity that characterizes transport of heat from a surface is the heat transfer coefficient whose size depends on several operational parameters. This contribution describes determination of the heat transfer coefficient on a hot physical model. An inversion method, based on the measuring of heat gradient between two thermocouples placed on the body of a hot probe, has been used for the calculation.