Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
EFFECTS OF THE VOLUTE CASING DESIGN ON THE CHARACTERISTICS OF CENTRIFUGAL PUMP
Submission Author:
RUBEN ALEXIS MIRANDA CARRILLO , MG
Co-Authors:
Carlos Eymel Campos Rodriguez, Leonardo Queiroz, Matheus Fonseca, bruna mariano, RUBEN ALEXIS MIRANDA CARRILLO
Presenter: RUBEN ALEXIS MIRANDA CARRILLO
doi://10.26678/ABCM.COBEM2017.COB17-2680
Abstract
A hydraulic pump is a machine that supplies or absorbs mechanical energy and transfers hydraulic energy to the fluid. Within the various components that comprise a pump, the rotor and the volute are responsible for playing an important role in the transfer of mechanical energy into pressure energy into the fluid. The present work deals with the design of the volute of a hydraulic turbomachine approximately radial generating of the centrifugal type, using water as working fluid. The volute is a component generally located around the rotor in order to decelerate the fluid by transforming part of the kinetic energy into pressure energy. The process of using the volute is to collect the fluid leaving the rotor and direct it to the turbomachinery outlet with the greatest possible uniformity and efficiency. The design of the volute structure is characterized by a gradual increase as it is directed towards exit, this increase being responsible for reducing the losses by shock and turbulence. For the dimensioning of the volute, certain geometrical considerations were made: the angular velocity of the rotor is constant; There is no internal partition in the volute; Between rotor and volute there is no diffuser system; And the volute has a logarithmic spiral shape, excluding the tongue and the outlet nozzle. As for the flow: the analysis of the flow in the volute was made in the transverse plane, and the flow in the volute was considered permanent.
Keywords
logarithmic volute, centrifugal pump, Design, experimental analysis
