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International Heat Transfer Conference 3

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

AN ANALYSIS FOR FREE CONVECTIVE HEAT TRANSFER TO SUPERCRITICAL FLUIDS

Shu Hasegawa
Department of Nuclear Engineering, Faculty of Engineering, Kyushu University, Fukuoka 812, Japan

Keisuke Yoshioka
Kyushu University Fukuoka, Japan

DOI: 10.1615/IHTC3.1020
pages 214-222

Abstract

Laminar free convection from a heated vertical plate having uniform surface temperature is studied for supercritical fluids close to the transposed critical point. The variation of physical properties are evaluated by enthalpy and they are taken into account by a perturbation method. A decline in the heat transfer coefficient occurs temporarily when the wall temperature is at the transposed critical point. It is shown, regardless of the variation of pressure and distinction of such fluid as water and carbon-dioxide, that predicting of heat transfer using the physical properties specified by reference enthalpy is likely to be successful.

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