Performance of a small diameter two-phase closed thermosyphon in geyser boiling condition

In the present article, the geyser boiling phenomenon is experimentally investigated in a small diameter two-phase closed thermosyphon. The studied thermosyphon has an inner diameter of 4.8 mm and total length of 918 mm. Three specific filling ratios and four temperatures for the thermal bath used t...

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Veröffentlicht in:IOP conference series. Materials Science and Engineering 2021-04, Vol.1139 (1), p.12014
Hauptverfasser: Pabón, Nelson Yurako Londoño, Vieira, Gabriel Serafin Couto, Milanez, Kênia Warmling, Mantelli, Marcia Barbosa Henriques
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Sprache:eng
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Zusammenfassung:In the present article, the geyser boiling phenomenon is experimentally investigated in a small diameter two-phase closed thermosyphon. The studied thermosyphon has an inner diameter of 4.8 mm and total length of 918 mm. Three specific filling ratios and four temperatures for the thermal bath used to provide cooling water to the condenser were tested. Power was inputted in steps of 20 W, up to 100 W. Variation of the temperatures on the walls of the evaporator, adiabatic and condenser sections as well as variations on pressure, obtained from a pressure transducer installed on the thermosyphon, indicated the presence of Geyser boiling. The results show that the studied variables affect directly the intensity and periodicity of the geyser boiling phenomenon.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/1139/1/012014