NUMERICAL MODELING OF OXY-FUEL AND AIR-FUEL BURNERS FOR ALUMINIUM MELTING

摘要

In recent years oxy-fuel combustion has become an increasinglyrnattractive alternative as a heating sourcernwhen melting aluminium. A newly developed LowrnTemperature Oxy-fuel burner from Linde Gas wasrninvestigated and compared to a conventional coldrnair-fuel burner in an instrumented pilot scale furnace.rnMeasurements and heating trials of aluminiumrnsamples were done for four diu001berent case studies. 3-rndimensional CFD models using the commercial softwarernpackage ANSYS Fluent were developed to attainrnadditional knowledge and to demonstrate CFDrnas a viable tool to model aluminium melting furnaces.rnGood agreement was found between the numericalrnmodels and the measurements where the differencernin heat transfer between the two burner technologiesrnwas clearly demonstrated.