Extended heat-transfer relation for an impinging laminar flame jet to a flat plate

Summary, in English

Many industrial applications use flame impingement to obtain high heat-transfer rates. An analytical expression for the convective

part of the heat transfer of a flame jet to a plate is derived. Therefore, the flame jet is approximated by a hot inert jet. In contradiction

with existing convective heat-transfer relations, our analytical solution is applicable not only for large distances between the jet and the

plate, but also for close spacings. Multiplying the convective heat transfer by a factor which takes chemical recombination in the cold

boundary layer into account, results in an expression for the heat flux from a flame jet to the hot spot of a heated plate. Numerical and

experimental validation show good agreement.

• Author: Martin Remie; Gustaf Särner; M Cremers; Alaa Omrane; K Schreel; Marcus Aldén; L.P.H. de Goey
• Department/s: Combustion Physics
• Publishing year: 2008
• Language: English
• Pages: 1854-1865
• Publication/Series: International Journal of Heat and Mass Transfer
• Volume: 51
• Issue: 7-8
• Links: http://dx.doi.org/10.1016/j.ijheatmasstransfer.2007.06.042
• Document type: Journal article
• Publisher: Pergamon Press Ltd.
• Topic: Atom and Molecular Physics and Optics
• Keywords: Phosphorescence; Heat transfer; Impinging flame jet; Oxy-fuel
• Status: Published
• ISBN/ISSN/Other: ISSN: 0017-9310