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International Heat Transfer Conference 16

ISSN: 2377-424X (online)
ISSN: 2377-4371 (flashdrive)

HEAT TRANSFER ANALYSIS DURING JET IMPINGEMENT ON METAL PLATES

Yuan Fang
Otto von Guericke University, Universitätsplatz 2, Magdeburg, 39106, Germany

Eckehard Specht
Otto von Guericke University Magdeburg, Institute of Fluid Dynamics and Thermodynamics, Universitätsplatz 2, 39106 Magdeburg, Germany

DOI: 10.1615/IHTC16.cod.022136
pages 2323-2331


KEY WORDS: Conduction, Convection, jet, inverse method, heat transfer

Abstract

This work presents the experimental investigations to estimate heat flux and wetting front velocity in the metal cooling process by a full jet nozzle. Experiments for three different metal plates made of copper, nickel and nicrofer have been done with an initial surface temperature from 500 to 850 °C. During the experiments, the quenching surface can be divided into three regimes: a central wetting region without apparent boiling, an outer annular region where rigorous boiling occurs and a dry region where no water is in contact with the surface. The dependency of the influential parameters on heat flux and wetting front velocity is systematically studied.

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