Magnetohydrodynamic Correction in Film Boiling Heat Transfer on Liquid Metal in Presence of an Ideal Magnetic Field With Particular Reference to Fusion Reactor Project

2009 ◽  
Vol 131 (12) ◽  
Author(s):  
F. J. Arias
Keyword(s):  
Magnetic Field ◽  
Heat Transfer ◽  
Liquid Metal ◽  
High Magnetic Field ◽  
Boiling Heat Transfer ◽  
Fusion Reactor ◽  
Horizontal Surface ◽  
Film Boiling ◽  
Experimental Measurements

The author proposed a magnetohydrodynamic correction from a horizontal surface in liquid-metal in the presence of an ideal magnetic field. The theoretical correction agrees qualitatively with the available experimental measurements made on mercury in a high magnetic field where transition/film boiling is expected.

Film-Boiling Heat Transfer From a Horizontal Surface

1961 ◽  
Vol 83 (3) ◽  
pp. 351-356 ◽  
Author(s):  
P. J. Berenson
Keyword(s):  
Heat Transfer ◽  
Heat Flux ◽  
Boiling Heat Transfer ◽  
Hydrodynamic Instability ◽  
Geometrical Model ◽  
Horizontal Surface ◽  
Film Boiling ◽  
Experimental Measurements ◽  
Minimum Heat ◽  
The Heat Transfer Coefficient

Taylor-Helmholtz Hydrodynamic Instability and its significance with regard to film boiling heat transfer from a horizontal surface is discussed. It is shown that near the minimum film-boiling heat flux, the bubble spacing and growth rate is determined by Taylor Instability neglecting the effect of fluid depth and viscosity. Utilizing a simplified geometrical model, an analytical expression for the heat-transfer coefficient near the minimum in film pool boiling from a horizontal surface was derived. Combining this equation with the available correlation for the minimum heat flux yields an analytical equation for the temperature difference at the minimum, which defines the location of the minimum point. The above equations agree with the available experimental measurements made on n-pentane and carbon tetrachloride within ±10 per cent.

Film Boiling on Horizontal Cylinders in Helium II

1971 ◽  
Vol 93 (1) ◽  
pp. 11-18 ◽  
Author(s):  
R. M. Holdredge ◽  
P. W. McFadden
Keyword(s):  
Heat Transfer ◽  
Boiling Heat Transfer ◽  
Heat Fluxes ◽  
Experimental Results ◽  
Film Boiling ◽  
Experimental Measurements ◽  
Helium Ii ◽  
Horizontal Cylinders

The analysis of Rivers and McFadden for film boiling heat transfer from horizontal cylinders immersed in Helium II is briefly reviewed and results are recapitulated. Experimental measurements of film boiling heat transfer are made for horizontal cylinders of 0.145 cm and 0.245 cm dia immersed in Helium II baths at 1.78, 1.96, and 2.1 K at wall heat fluxes up to 2.84 w/cm2. The nondimensionalized experimental results are compared with the accepted correlations of Bromley and Breen and West-water to demonstrate the inability of the usual film boiling correlations to predict film boiling in Helium II. The nondimensionalized experimental results are compared with the predictions of the Rivers and McFadden analysis which considers Helium II properties, and the results of the analysis are substantiated.

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