Effect of Geometric Changes in an Adiabatic Section of Thermosiphon Using TiO2 & Al2O3 Nanofluid

Abstract

Objectives:The thermosiphon is a device that transfers heat from a source to the environment. Electric and electronic supplies generate a greater amount of heat, so it's critical to transfer the heat efficiently. So we used TiO2 & Al2O3 nanofluid as a working fluid and made geometrical changes in the adiabatic section to improve the heat transfer efficiency. Methods: We tested thermosiphons with TiO2 & Al2O3 as working fluids in the heat input range of 50-300W at different inclination angles (0°, 45°and 90°), investigations are conducted. CFD flow analysis of thermosiphon such as fluid to steam phases all works carried on ANSYS FLUENT 18.1. Findings: The heat transfer coefficient of thermosiphon at different inclination points (0°, 45°and 90°) are find through by calculating heat transfer parameters. We find the heat transfer rate, pressure drop, mass stream rate, water.volume.fraction, stream.volume.fraction by using ANSYS FLUENT 18.1. Novelty: We increase the heat transfer coefficient of the thermosiphon by using TiO2 & Al2O3 as a working fluid and made geometrical changes in the adiabatic section of the thermosiphon to increase the flow rate of working fluid. This thermosiphon is suitable for electronic cooling applications due to its shift in adiabatic portion, which increases heat transfer efficiency and reduces weight.