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Heat Transfer Research
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ISSN Imprimer: 1064-2285
ISSN En ligne: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.v32.i1-3.160
8 pages

Heat Transfer in Boiling of Liquid Films

S. A. Efimova
Moscow Power Engineering Institute (Technical University), Russia
Yu. M. Pavlov
Moscow Power Engineering Institute (Technical University), Russia

RÉSUMÉ

The work is devoted to the heat transfer in boiling of films of various liquids formed by wetting a heat generating surface from a sprayer in the form of a capillary tube. A physical model of the incipience of a vapor phase in thin layers of liquid in the absence of thermal gravitational convection is presented and on its basis a computational relation is given for the temperature head in boiling-up ΔTs.b.. An interpolation dependence of ΔTs.b. on the height of the column (layer thickness) of liquid on a heat generating surface is suggested which makes it possible to estimate this parameter in the layers of liquid in which there is nondeveloped gravitational convection.


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