Direct flame impingement heating for rapid thermal materials processing / Malikov GK,Lobanov DL,Malikov KY,Lisienko VG,Viskanta R,Fedorov AG // INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER. - 2001. - V. 44, l. 9. - P. 1751-1758.

ISSN/EISSN:

0017-9310 / нет данных

Type:

Article

Abstract:

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 (<1400 K). The combustion gas temperature varied between 1500 and 1800 K. A simplified two-dimensional theoretical model was developed to analyze gas flow, flame jet combustion and heat/mass transfer in the DFI furnace. The model developed has been Validated against the experimental data and was used to obtain a fundamental understanding of the physical processes taking place in the furnace. In addition, the model has been used as a tool to optimize design and operation of the DFI furnace. <(c)> 2001 Elsevier Science Ltd. All rights reserved.

Author keywords:

JET IMPINGEMENT; FLOWS; GAS

DOI:

10.1016/S0017-9310(00)00204-0

Web of Science ID:

ISI:000167694600011

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	MAY
Publisher	PERGAMON-ELSEVIER SCIENCE LTD
Address	THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
Language	English
Keywords-Plus	JET IMPINGEMENT; FLOWS; GAS
Research-Areas	Thermodynamics; Engineering; Mechanics
Web-of-Science-Categories	Thermodynamics; Engineering, Mechanical; Mechanics
Number-of-Cited-References	27
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	4
Journal-ISO	Int. J. Heat Mass Transf.
Doc-Delivery-Number	414YW