The Design and Operation of Glass Furnaces

JSGT 1928 V12 T128-T131

In approaching the problem of improving the efficiency and design of a glass melting furnace, it is instructive to compare the efficiency of such a furnace with the efficiency of a modern boiler installation. The efficiency of the modem boiler plant is about 80% in contrast with the efficiency of the glass-melting furnace of, say, about 14%. The higher efficiency of the boiler plant is due chiefly to the low radiation losses and to the recovery by the economiser of what would be otherwise waste heat. Further, the modern boiler is constructed in such a way as to obtain the highest possible rate of heat transmission which permits of a minimum heating surface for a given output of steam.

W. W. Warren