ENERGY CONSERVATION THROUGH INCREASED EMISSIVITY IN FURNACES

Abstract

The article describes a new method which increases radiation heat transfer of furnace refractory linings. The method, which is the application of a high emissivity coating, results partly in energy savings, partly increases gas tightness and life span of the lining. As heating time is decreased, the method also makes the operation of the furnace more flexible. Application of ENECOAT furnace coating increases the emissivity of ceramic fibre insulations by 45 %, while that of shamotte by 20 %. The phenomenon is illustrated by infrared thermograms. Industrial applications are also referred to.