Direct flame impingement heating for rapid thermal materials processing

Combined experimental and theoretical investigations have been carried out to study heat/mass transfer and combustion in the direct flame impingement (DFI) furnace for rapid heating of metals in materials processing. A large-size industrial DFI furnace, equipped with a multiflame combustion system,...

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Bibliographic Details
Published in:International journal of heat and mass transfer 2001-05, Vol.44 (9), p.1751-1758
Main Authors: Malikov, G.K., Lobanov, D.L., Malikov, K.Y., Lisienko, V.G., Viskanta, R., Fedorov, A.G.
Format: Article
Language:English
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Summary:Combined experimental and theoretical investigations have been carried out to study heat/mass transfer and combustion in the direct flame impingement (DFI) furnace for rapid heating of metals in materials processing. A large-size industrial DFI furnace, equipped with a multiflame combustion system, has been instrumented for performing detailed fluid dynamics and heat transfer measurements. The mean and local pressure, fuel mass fractions, temperatures and convective/radiative heat fluxes have been measured and are reported for high jet velocities (up to 230 m/s) and firing rates. In the case of natural gas–air firing, the convective heat fluxes as high as 500 kW/m 2 were recorded with relatively ‘cold’ refractory wall temperatures (
ISSN:0017-9310
1879-2189
DOI:10.1016/S0017-9310(00)00204-0