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Heat Transfer Research
インパクトファクター: 0.404 5年インパクトファクター: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN 印刷: 1064-2285
ISSN オンライン: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.2017016778
pages 979-990

EFFECT OF THE HEIGHT OF THE HORIZONTAL LAYER OF LIQUID ON THE DEVELOPMENT OF CRITICAL PHENOMENA IN EVAPORATION AT REDUCED PRESSURES

Vladimir Zhukov
Department of Chemical Engineering, Novosibirsk State Technical University, 20 K. Marx Ave., Novosibirsk, 630073, Russia
Aleksandr N. Pavlenko
Kutateladze Institute of Thermophysics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia

要約

This experimental study is devoted to heat transfer under conditions of evaporation of a horizontal thin layer of VM-1S vacuum oil at a reduced pressure. The experimental data have been evaluated in accordance with the heat-flux density dependence on the temperature difference and by estimating the critical heat flux within a wide range of liquid heights. The values of the heat flux prove to increase by an order of magnitude within a narrow range of liquid heights. The critical heat-flux density has been estimated in the layers of thickness less than a capillary constant presented by the Kutateladze formula. The increase in the layer thickness influences the growth of the critical heat flux. The obtained output constant data are found to be in satisfactory agreement with Yagov's and Landau's evaluating dependences.


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