Paper presented at the 5th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, South Africa, 1-4 July, 2007.
Experimental work was concentrated on the study of
descaling in relation to heat transfer and the quality of
removing scale from the surface. Three types of measurements
were implemented. The first one is a measurement of impact
pressure distribution on spraying surface. The second is a
measurement of temperature drop when a product is passing
under the nozzle. The third type is a study of the surface quality
where a defined layer of oxides is sprayed and its remaining
thickness is evaluated. The heat transfer test is evaluated by
inverse task and the results are prepared in a form of boundary
conditions suitable for using in a numerical model.