Numerical results for the cooling power optimization problem

摘要

The contribution deals with the numerical results for the cooling power optimization problem for the pressing process in glass forming. The continuous problem was formulated in details at AMEE'17, which focuses to control distribution of temperature on the outward plunger surface. The numerical results were received by the software FreeFem++ version 3.19 for the sample of the real vase made from lead crystal glassware of the height 267 [mm] and the mass 1.55 [kg]. The plunger and the mould were made from steel. The cooling was implemented by the water with the temperature 15 [°C] at the entrance. We assume that the water is heated to 100 [°C] and changes its state to steam during the cooling. Its weight in the individual parts of the plunger cooling cavity is taken as a design variable. The results of the numerical optimization to the required target temperature 800 [°C] of the outward plunger surface together with the distribution of temperatures on the interface between the plunger and the glass before and after the optimization process are presented.