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International Heat Transfer Conference 5

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

INVESTIGATION OF RADIATIVE THERMAL IMPACT ON METAL SURFACES

Nikolai A. Rubtsov
Laboratory of Radiative Heat Transfer Institute of Thermophysics Siberian Brunch of the Russian Academy of Sciences 630090, Lavrentiev pr. 1 Novosibirsk Russia

A.E. Verte
Thermal Physics Institute, Siberian Branch of the USSR Ac. Sci., Novosibirsk, USSR

DOI: 10.1615/IHTC5.3390
pages 75-78

Abstract

Kinetics of heating the surface of pure Al and Sn by means of thermal impulses of low -to- middle strength is studied. Anomalous temperature rise of the heated surfaces discussed in refs. /1-3/ is confirmed. The relationship between anomaly and purity of the studied metals and also perfection of their structure has been revealed. The thermal conductivity coefficient is assumed to decrease, in a thin surface layer due to energy redistribution of the heat-transfer agents. It is shown that termal conductivity can be decreased by 2-3 orders.

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