Eventos Anais de eventos
ENCIT 2022
19th Brazilian Congress of Thermal Sciences and Engineering
NUMERICAL CHARACTERIZATION OF THE GEOMETRY AT THE ENTRANCE TO THE TANK IN THE FORMATION AND DEVELOPMENT OF THE GRAVITATIONAL VORTEX OF WATER
Submission Author:
ROBERTO CARLOS CHUCUYA HUALLPACHOQUE , Ancash - Santa , Peru
Co-Authors:
ROBERTO CARLOS CHUCUYA HUALLPACHOQUE, NICOL DAYANA ANTONIETA GONZALEZ CHONSENG, URSUS JHONATAN SANDOVAL VÁSQUEZ, Luis Fernando Junior Saldaña Bernuy
Presenter: ROBERTO CARLOS CHUCUYA HUALLPACHOQUE
doi://10.26678/ABCM.ENCIT2022.CIT22-0240
Abstract
In Peru, the participation in the production of electric energy by means of mini-hydraulic energy (less than 20 MW) is 2.5% of the total generated, for this reason, it is important to conduct investigations to boost this low percentage of production. To address this circumstance, the use of vortex velocity in a gravitational vortex hydraulic energy generation system is presented as a potential alternative solution. The modeling of the geometry was carried out in Autodesk Inventor which is compatible with the ANSYS 2020 R1 software, whose dimensions were for both geometries the entrance is square of 1.5 m and a development length of 7.5 m, the diameter of the cylinder is 5.5 m and the discharge diameter of 1.0 m. The mesh used for the conical geometry was the MultiZone method and for the cylindrical geometry two types of mesh were performed, for the inlet channel and discharge cone the MultiZone method was used and for the cylindrical tank the Automatic method. The superficial flow velocities for the geometry of the conical and cylindrical tank are in the range of 2.26 m/s to 2.58 m/s and 1.85 m/s to 2.23 m/s, respectively, the latter does not present a well-behaved velocity field, being able to this generates instabilities in the operation of the turbine.
Keywords
gravitational vortex, cylindrical and conical inlet geometry, numerical modelling, Ansys 2021 R1
