Heat transfer and vapor bubble formation during boiling of magnetic fluid on a single vapor formation center in an alternating magnetic field

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Abstract

The frequency of vapor bubble formation and heat transfer during boiling of a magnetic fluid in a homogeneous alternating horizontal magnetic field are studied experimentally. Bubble formation occurs at a single vapor formation center. To measure the frequency of vapor bubble formation, an induction method based on the occurrence of induction current in the coil turns through which the vapor bubbles move is used. It is found that the specific heat flux and the frequency of vapor bubble formation depend significantly on the frequency of the magnetic field. The obtained results indicate the possibility of effective non-contact control of the boiling process of magnetic fluid, which may have practical application.

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About the authors

А. Ya. Simonovsky

Stavropol State Agrarian University; North Caucasus Federal University

Author for correspondence.
Email: simonovchkij@mail.ru
Russian Federation, Stavropol; Stavropol

A. R. Zakinyan

North Caucasus Federal University

Email: simonovchkij@mail.ru
Russian Federation, Stavropol

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2. Fig. 1. Schematic diagram of the experimental setup (not to scale), explanations in the text.

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3. Fig. 2. Typical appearance of oscillograms obtained in experiments.

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4. Fig. 3. Experimental dependence of the specific heat flux during boiling of a magnetic fluid on the temperature of the heat-transfer surface at different values ​​of the frequency of the external magnetic field.

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5. Fig. 4. Experimental dependence of the specific heat flux during boiling of a magnetic fluid on the frequency of the external magnetic field at different values ​​of the temperature of the heat-transfer surface.

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6. Fig. 5. Dependences of the frequency of formation of steam bubbles during boiling of magnetic fluid on the temperature of the heat-transfer surface at different values ​​of the frequency of the external magnetic field.

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7. Fig. 6. Dependences of the frequency of formation of steam bubbles during boiling of magnetic fluid on the frequency of the external magnetic field at different values ​​of the temperature of the heat-transfer surface.

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