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http://dx.doi.org/10.5762/KAIS.2015.16.5.3022

Visualization of Flow Characteristics on Thermosyphon with Immiscible Binary Working Fluid  

Do, Sun Yub (Korea Polytechnic University Mechanical Engineering)
Kang, Hawn Kook (Dongeun ATS)
Park, Seung Chul (Korea Polytechnic University Mechanical Engineering)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.16, no.5, 2015 , pp. 3022-3029 More about this Journal
Abstract
This study presents experiments to visualize the internal flow and heat transfer characteristics of thermosyphon with immiscible of water-FC40 adopted as binary working fluid. Three different regimes depending on the amount of heat flux applied to the thermosyphon were observed: natural convection, pulse boiling, and continuous boiling. Boiling incipience took place in water, which has lower vapor pressure than FC40. During natural convection water was vaporized in liquid pool while liquid film flows were formed. On the other hand, meanwhile bubbles were generated in the liquid pool during pulse and continuous boiling, the binary working fluid of water-FC40 was observed as the mixture throughout a whole range of the thermosyphon.
Keywords
Immiscible binary fluid; Thermosyphon; Visualization;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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