Energy consumption and capacity utilization of galvanizing furnaces

Research output: Contribution to journalArticlepeer-review

Authors

Colleges, School and Institutes

External organisations

  • Department of Mechanical Engineering
  • The University of Sheffield

Abstract

An explicit equation leading to a method for improving furnace efficiency is presented. This equation is dimensionless and can be applied to furnaces of any size and fuel type for the purposes of comparison. The implications for current furnace design are discussed. Currently the technique most commonly used to reduce energy consumption in galvanizing furnaces is to increase burner turndown. This is shown by the analysis presented here actually to worsen the thermal efficiency of the furnace, particularly at low levels of capacity utilization. Galvanizing furnaces are different to many furnaces used within industry, as a quantity of material (in this case zinc) is kept molten within the furnace at all times, even outside production periods. The dimensionless analysis can, however, be applied to furnaces with the same operational function as a galvanizing furnace, such as some furnaces utilized within the glass industry.

Bibliographic note

Copyright: Copyright 2008 Elsevier B.V., All rights reserved.

Details

Original languageEnglish
Pages (from-to)251-259
Number of pages9
JournalProceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering
Volume218
Issue number4
Publication statusPublished - Nov 2004

Keywords

  • Capacity utilization, Combustion, Dimensional analysis, Energy efficiency, Furnace