A mathematical model has been used to determine the optimum method of applying the necessary cooling after glass has left the melter as it passes through the working end and forehearth. The best results in terms of thermal homogeneity will be obtained when the cooling is applied as early as possible, and when the cooling phase is completed quickly. The types of cooling systems possible are reviewed and show that all systems are in fact radiation systems. The results show that the best conditioning will be obtained when an open radiation cooling system is applied as early as possible, in most cases this means in the working end. It is concluded that this type of system offers the best solution for all high capacity container glass installations.
