A survey of hemispherical total emissivity of the refractory metals in practical use

Akihiko Otsuka, Kazuo Hosono, Ryohei Tanaka, Kuniyuki Kitagawa and Norio Arai

Energy, 2005, vol. 30, issue 2, 535-543

Abstract: The applicability of the hemispherical total emissivity measurement for metals those have a thin protective layer (passive scale) on its surface was investigated at high temperatures (above 1000 °C) using a modified hot-filament method. In this method, the Joule heat and the temperature of the specimen were measured by two sets of electrodes (two sets of thermocouples) spot-welded at the middle portion of the specimen, in order to reduce the influence of heat loss from the water cooled electrodes at both ends of the ribbon specimen.

Date: 2005
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:30:y:2005:i:2:p:535-543

DOI: 10.1016/j.energy.2004.04.019

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