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Investigation of Effect of Burner Diameter on Heat Transfer Characteristics of Methane/Air Flame Impinging on a Flat Surface

[+] Author Affiliations
Subhash Chander, Anjan Ray

Indian Institute of Technology-Delhi, New Delhi, India

Paper No. HT2005-72545, pp. 213-220; 8 pages
doi:10.1115/HT2005-72545
From:
  • ASME 2005 Summer Heat Transfer Conference collocated with the ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems
  • Heat Transfer: Volume 1
  • San Francisco, California, USA, July 17–22, 2005
  • Conference Sponsors: Heat Transfer Division and Electronic and Photonic Packaging Division
  • ISBN: 0-7918-4731-4 | eISBN: 0-7918-3762-9
  • Copyright © 2005 by ASME

abstract

An experimental study has been conducted to investigate the effect of burner diameter on heat transfer characteristics of methane/air flames impinging normally to a flat surface. Three different tubes of internal diameter 8 mm, 9.7 mm and 12 mm were selected as flame holders. Effects of firing rates and equivalence ratios were studied on stagnation point and radial heat flux distribution. Three firing rates (0.25 kW, 0.40 kW and 0.50 kW) and three equivalence ratios (0.8, 1.0 and 1.2) were considered. Stagnation point heat flux was compared for different burner diameters under similar conditions. Radial heat flux distributions over the surface for different burner diameters under different firing rates and equivalence ratios were compared. It was found that the heat flux distribution was intimately related to flame shapes and sizes.

Copyright © 2005 by ASME

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