Measurement And Mathematical Modelling Of Heat Transfer In The Glass Forming Process, In Consideration Of The Heat Transfer Coefficients And Radiation Influences

During forming, glass to mould contact temperatures are the significant factor for the final glass surface quality. For a good characterisation of this contact condition the heat transfer by conduction and radiation needs to be described in detail. A laboratory testing unit was set up to investigate the influence of radiation emitted by different glass compositions and the influence of different mould materials used during forming. To support the experimental results, heat transfer conditions and temperatures were modelled at given boundary conditions using the CFD-Code FLUENT software program applying discrete models.