Flow structure of subcooled boiling flow in an internally heated annulus

Situ, Rong, Hibiki, Takashi, Sun, Xiaodong, Mi, Ye, and Ishii, Mamoru (2004) Flow structure of subcooled boiling flow in an internally heated annulus. International Journal of Heat and Mass Transfer, 47 (24). pp. 5351-5364.

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Abstract

Local measurements of flow parameters were performed for vertical upward subcooled boiling flows in an internally heated annulus. The annulus channel consisted of an inner heater rod with a diameter of 19.1 mm and an outer round pipe with an inner diameter of 38.1 mm, and the hydraulic equivalent diameter was 19.1 mm. The double-sensor conductivity probe method was used for measuring local void fraction, interfacial area concentration, and interfacial velocity. A total of 11 data were acquired consisting of four inlet liquid velocities, 0.500, 0.664, 0.987 and1.22 m/s and two inlet liquid temperatures, 95.0 and 98.0 °C. The constitutive equations for distribution parameter and drift velocity in the drift-flux model, and the semi-theoretical correlation for Sauter mean diameter, namely, interfacial area concentration, which were proposed previously, were validated by local flow parameters obtained in the experiment.

Item ID: 21500
Item Type: Article (Refereed Research - C1)
ISSN: 0017-9310
Date Deposited: 30 Mar 2012 02:48
FoR Codes: 09 ENGINEERING > 0915 Interdisciplinary Engineering > 091504 Fluidisation and Fluid Mechanics @ 50%
09 ENGINEERING > 0915 Interdisciplinary Engineering > 091505 Heat and Mass Transfer Operations @ 50%
SEO Codes: 85 ENERGY > 8504 Energy Transformation > 850403 Nuclear Energy @ 50%
85 ENERGY > 8507 Energy Conservation and Efficiency > 850701 Commercial Energy Conservation and Efficiency @ 50%
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