Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
NUMERICAL AND EXPERIMENTAL ANALYSIS OF A COPPER THERMOSYPHON
Submission Author:
Thiago Antonini Alves , PR , Brazil
Co-Authors:
Larissa Krambeck, Thiago Antonini Alves, Caroline Rezende Machado, Fernanda Cabral, Alex Vinicius Lopes Machado, PAULO HENRIQUE DIAS DOS SANTOS
Presenter: Larissa Krambeck
doi://10.26678/ABCM.COBEM2017.COB17-2179
Abstract
In this paper, a numerical and experimental analysis of the thermal behavior of copper thermosyphon was performed. The thermosyphon was produced by copper tube ASTM B75 Alloy 122 with an outer diameter of 9.45 mm, an inner diameter of 7.75 mm and a length of 200 mm. The analysis was made with a filling ratio of 100% of the evaporator volume. The working fluid was deionized water. The experimental tests were done for the thermosyphon in the vertical position under thermal loads between 5 and 45 W. It was implemented a numerical modeling in order to simulate the details of the two-phase flow and heat transfer phenomena during the operation of the thermosyphon. The volume of the fluid (VOF) model in ANSYS/FLUENT was used for the simulation. The evaporation, condensation, and phase change processes in the thermosyphon were implemented into the code of FLUENT by user-defined function (UDF). The simulation results were compared with experimental measurements at the same condition. The simulation was successful in reproducing the heat and mass transfer processes in a thermosyphon.
Keywords
Thermosyphon, Numerical Modeling, ANSYS/Fluent, experimental
