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Performance of the Combustion Process Inside an Aluminum Melting Furnace With Natural Gas and Liquid Fuel

[+] Author Affiliations
Angela O. Nieckele, Mônica F. Naccache, Marcos S. P. Gomes, João N. E. Carneiro, Bruno Goes e Silva

PUC/Rio

Paper No. IMECE2005-79042, pp. 275-283; 9 pages
doi:10.1115/IMECE2005-79042
From:
  • ASME 2005 International Mechanical Engineering Congress and Exposition
  • Energy Conversion and Resources
  • Orlando, Florida, USA, November 5 – 11, 2005
  • Conference Sponsors: Power Division
  • ISBN: 0-7918-4218-5 | eISBN: 0-7918-3769-6
  • Copyright © 2005 by ASME

abstract

The choice of the type of fuel used as energy source for the aluminum melting can be of extreme importance for a better performance as well as for a greater preservation of the equipments. The option of a liquid or gaseous fuel can significantly alter the combustion aspects inside the furnace, such as the shape of the flame and the distribution of temperature and heat flux. In the present work, numerical simulations were carried out using the commercial package FLUENT, analyzing different cases with two types of fuel: a spray of liquid oil and a natural gas jet, both reacting with pure oxygen. The results showed the possible damages caused by the process if long or too intense and concentrated flames are present, increasing very much the wall temperatures and compromising the heat flux on the aluminum surface.

Copyright © 2005 by ASME

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