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Heat Loss Analysis of Dross Removal in an Aluminum Furnace

[+] Author Affiliations
Brian Golchert

Fluent, Inc.

Paul Ridenour, Naresh K. Selvarasu, Predrag Milovac, Chenn Q. Zhou

Purdue University Calumet

Paper No. IMECE2006-15690, pp. 315-322; 8 pages
  • ASME 2006 International Mechanical Engineering Congress and Exposition
  • Energy Conversion and Resources
  • Chicago, Illinois, USA, November 5 – 10, 2006
  • Conference Sponsors: Nuclear Engineering Division
  • ISBN: 0-7918-4783-7 | eISBN: 0-7918-3790-4
  • Copyright © 2006 by ASME


During the melting/production of aluminum, dross forms on the surface of the molten aluminum. Dross is a contaminant and an insulator so the aluminum industry regularly removes this dross from the aluminum surface. This is done by opening a door on the side of the furnace while the burners are still in operation and manually raking off the dross. As a result, a lot of heat is lost while the door is open. This lost heat depends upon the length of time the door is open and on the firing rate of the burners. This paper will present computational results on how much heat is lost while the door is open, the effect of this heat loss on the combustion space flow field, and the length of time needed to return to equilibrium conditions once the door is closed again.

Copyright © 2006 by ASME



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