Industrial energy use project. Annual report 1979-80

The report describes first year work on a study to (1) determine energy use data disaggregated to the process level for all industries, (2) identify technological options to improve efficiency of gas consuming furnaces, and (3) recommend research priorities for improving the efficiency of industrial gas use. Furnaces used in the glass and iron and steel industries are examined. Energy consumption data by process/furnace and fuel type are given. The first-law efficiency and energy balance for four glass melting furnaces and eleven iron and steel furnaces have been calculated. Formulation of a detailed mathematical model for heat transfer processes inside a glass regenerative melting furnace is presented. The model is used to simulate effects of various energy conservation options on furnace operation and performance. Major inefficiencies in furnaces in the glass and iron and steel industries are discussed and available energy conservation and fuel switching options are identified. Some research areas that could benefit energy conservation are outlined.