Eventos Anais de eventos
COBEM 2021
26th International Congress of Mechanical Engineering
Effect of the inclination angle on the performance of 100 and 30 mesh copper water heat pipes for application in a Stirling engine
Submission Author:
Ana Santos , SP
Co-Authors:
Ana Santos, Valéria Leite, Lamartine Guimarães, Rafael Theodoro
Presenter: Ana Santos
doi://10.26678/ABCM.COBEM2021.COB2021-0857
Abstract
This paper presents an experimental study of two screen copper-water heat pipes for application with the Stirling engine. The pipes have different porosities (30 and 100 mesh). These heat pipes will be used to transport heat from a thermal source to the hot end of a Stirling engine. However, first, it is necessary to understand the thermal behavior of the heat pipes. Thus, the objective is to analyze the temperature distribution and the influence of inclination on the thermal performance of heat pipes and choose the most suited one. For that, the temperatures were collected in the angulations: 0°, 30°, 45°, 60°, and 90°. Then, the characterization and selection of the best pipe were carried out. The results showed that at all angles of inclination, the condenser reached the temperature required to start the Stirling engine (greater than 215ºC and evaporator reached 270ºC). The angle variation has little influence on the performance of the heat pipes. However, at 90° temperature differential was lower. The 100 mesh showed better performance (smaller temperature difference and greater transport capacity). So, it was possible to select the 100 mesh heat pipe for application with the Stirling engine in the study.
Keywords
Heat Pipes, Mesh Wick, Two-phase Flow, Heat transfer, Stirling engine
