Refine your search
Collections
Co-Authors
Year
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Jacome, Elizabeth Salazar
- Cavitation Analysis with CFD Techniques of the Impeller of a Centrifugal Pump
Abstract Views :230 |
PDF Views:0
Authors
Wilson Sanchez Ocana
1,
Christian Carvajal
1,
Jose Poalacín
1,
Monserrate Intriago Pazmino
2,
Elizabeth Salazar Jacome
1,
Luis Basantes
3
Affiliations
1 Departamento de Electrica y Electronica, Universidad de las Fuerzas Armadas ESPE, ID: 60104598, Sangolqui, EC
2 Departamento de Informatica y Ciencias de la Computacion, Escuela Politecnica Nacional, Quito, EC
3 Departamento de Ciencias Exactas, Universidad de las Fuerzas Armadas ESPE, ID: 60104598, Sangolqui, EC
1 Departamento de Electrica y Electronica, Universidad de las Fuerzas Armadas ESPE, ID: 60104598, Sangolqui, EC
2 Departamento de Informatica y Ciencias de la Computacion, Escuela Politecnica Nacional, Quito, EC
3 Departamento de Ciencias Exactas, Universidad de las Fuerzas Armadas ESPE, ID: 60104598, Sangolqui, EC
Source
Indian Journal of Science and Technology, Vol 11, No 22 (2018), Pagination: 1-6Abstract
Background/Objectives: The present work evaluates the phenomenon of cavitation in the impeller of a centrifugal pump and observes the behavior of said phenomenon computationally in a simulation as in a physical way in a real pumping system. Methods: The method used is the CFD simulation techniques of ANSYS that allowed designing and analyzing the impeller of the centrifugal pump with convergence criteria of 1000 iterations, an rms value off low lines of 1e-4, a physical scale time of 0.00276 and a conservation value of 1%. In order to analyze the phenomenon of cavitation in the eye of the pumping system impeller, the ball valve V1 was closed an angle of 45°, located in the suction pipe to create an empty pression exceeding the vapor pressure of the pumped fluid. Experimentally recording the pressure reduction at discharge from 42.75 KPa to 19.31 KPa. Findings: The results obtained with the help of the CFD module allowed us to observe the fluid pressure distribution on the pump impeller blades with a value of 2064 Pascals (Saturation Pressure at 18 ° C), indicating the behavior of the fluid, when it passing from a liquid state to a steam state, causing the formation of vapor bubbles whose implosion causes the surface of the impeller to wear out and it is evidenced computationally the areas affected by the presence of the cavitation phenomenon. These surfaces wear out in an area close to the impeller’s eye, and then we observe aware of the material produced by lack of maintenance known as average erosion and finally total impeller damage caused by vapor bubbles. Applications/Improvements: It is suggested for this work to perform an analysis of the other elements that suffer damage due to the erosion of the material of the pump impeller, among them the casing and other elements.References
- Raghavendra SM. CFD simulation of centrifugal pump impeller using ANSYS-CFX. International Journal of Innovative Research in Science, Engineering and Technology. 2014; 3(8):1–9.
- Ushashri P. Computational analysis on performance of a centrifugal pump impeller. Proceedings of the 37th National and 4th International Conference on Fluid Mechanics and Fluid Power; Chennai, India. 2010.
- Purushothaman K. Analysis of a centrifugal pump impeller using ANSYS- CFX. International Journal of Engineering Research and Technology. 2012; 1(3):1–7.
- Shah S. CFD based flow analysis of centrifugal pump. Proceedings of the 37th National and 4th International Conference on Fluid Mechanics and Fluid Power; Chennai. 2010.
- Bacharoudis EC. Parametric study of a centrifugal pump impeller by varying the outlet blade angle. The Open Mechanical Engineering Journal. 2008; 2:75–83. Crossref
- Nova FV. Cavitation modelling of a centrifugal pump impeller. 22nd International Congress of Mechanical Engineering; Sao Paulo, Brazil. 2013. p. 1–12.
- González PJ. Modelizacion numerica del flujo no estacionario en bombas centrífugas: efectos dinámicos de la interaccion entre rodete y voluta. Universidad de Oviedo. Departamento de Energía; 2000.
- Yuka IGA. Numerical study of sheet cavitation break-off phenomenon on a cascade hydrofoil; 2001. p. 1–8.
- Klever A. Desarrollar un modelo CFD para el análisis del comportamiento del fluido en tuberías del banco de pérdidas de turbomaquinaria hidráulica y laboratorio. Escuela Superior Politécnica de Chimborazo; 2016. p. 1–45.
- Luis DF, Yamal MI, Rios ALG, Eduardo L. Construcción y pueta en marcha de un banco de cavitación para bombas centrífugas peque-as. 2006; 1(30):1–6.
- Munson BR, Donald FY, Okiishi TH. Fundamentos de Mecánica de Fluídos. Mexico: Limusa-Wiley; 1999. p. 1–43.
- Dear JP, Field JE. A study of the collapse of arrays of cavities. Journal of Fluid Mechanics. 1988; 190: 409–25. Crossref
- Egusquizaa E, Farhat M, Avellan F, Coussirat M, Escaler X. Detection of cavitation in hidraulic turbines. Mechanical Systems and Signal Processing. 2006; 20:983–1007. Crossref
- Arnaldo DDT, Gruber ACV, Nehomar MN. Analisis numerico del campo de flujo a traves del dominio fluidizado impulsor-voluta en una bomba centrífuga. Revista Ingenierıa UC. 2013; 20(2):1–13.
- Vargas BS. Estudio del fenomeno de cavitacion en una bomba centrífuga de 1 HP y su influencia en los parametros de rendimiento energetico en la facultad de ingeniería civil y mecanica. Universidad Tecnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Carrera de Ingeniería Mecánica; 2014. p. 67–68.
- ANSYS. Introduction to Multi Zone Meshing. ANSYS Meshing Application Introduction; 2009.