Adjustment of the characteristic curves of rotodynamic pumps
Keywords:
adjustment, curves, characteristics, pumps, rotodynamicsAbstract
Traditionally, the information related to the performance of rotodynamic pumps has been provided graphically, by means of their four characteristic curves: head-capacity, efficiency-capacity, power-capacity and NPSHr-capacity. Nowadays, stimulated by the widespread use of computers, rotodynamic pump manufacturers have begun to use mathematical equations to replace the graphical form to provide information related to their pumps and as a more expeditious means of studying the hydraulic behavior of pumping systems. In this way, it is essential to define the methods for obtaining the mathematical expressions representative of the characteristic curves of the pumps, from the graphs and/or data provided by the manufacturer, since these do not provide this information in an analytical form. The three most commonly used techniques are presented to perform the process of mathematization of the characteristic curves for their subsequent digitization.
Downloads
References
American National Standards Institute/Hydraulic Institute (ANSI/ HI) (2022). “ANSI/HI 14.6-2022: Rotodynamic Pumps For Hydraulic Performance Acceptance Tests”, 84 pp., ISBN 978-1-935762-46-1, Washington D. C., United States.
Cabrera E. (2009). “Ingeniería hidráulica aplicada a los sistemas de distribución de agua”, Editorial Unidad Docente Mecánica de Fluidos, Universidad Politécnica de Valencia, t. 1 y 2, 3ra edición, ISBN 8-461339-49-5, Valencia, España.
De Eça Guimaraes J. M., Espert V., García-Serra Jorge, Sanz F. y Cabrera Enrique (2012). “Transitorios hidráulicos del régimen estacionario al golpe de ariete”, Editorial Monografías Instituto Tecnológico del Agua, Universidad Politécnica de Valencia (UPV), 1ra edición, ISBN 978-84-8363-780-7, Valencia, España.
Gotay J. (2004). “Matemática Aplicada”, Editorial ENPSES, ISBN 03887-3887, La Habana, Cuba.
International Organization for Standardization (ISO) (2012). “ISO 9906:2012-Rotodynamic pumps-Hydraulic performance acceptance tests-Grades 1, 2 and 3”, 52 pp., 2nd edition, Ginebra, Suiza.
Martínez Y. (2011). “Metodología para el diseño hidráulico de las estaciones de bombeo para acueducto”, Tesis de doctorado, Instituto Superior Politécnico “José Antonio Echeverría” (Cujae), La Habana, Cuba.
Paluszny M., Prautzsch H. y Boehm, W. (2005). “Métodos de Bézier y B-splines”, Editorial Universitätsverlag Karlsruhe, ISBN 3-937300-47-3, Baden-Wurtemberg, Alemania.
Pérez D. (2012). “Estaciones de Bombeo”, Editorial Félix Varela, ISBN 978-959-07-1379-8, La Habana, Cuba.
Riaño F. y Lorence M. (1986). “Algunas consideraciones sobre el punto de operación de una bomba y su determinación matemática”, Ingeniería Hidráulica, 7 (1): 86-92, ISSN 0253-5696, Instituto Superior Politécnico José Antonio Echeverría (Cujae), La Habana, Cuba.
Stephens G. (2011). “Pump Curve Accuracy”, Pumps&Systems Magazine, ISSN 1065-108X, Cahaba Media Group, Birmingham, Alabama, United States. Extraído de: https://www.pumpsandsystems.com/pump-curve-accuracy en diciembre de 2023.
Sterling SIHI (2003). “Principios básicos para el diseño de instalaciones de bombas centrífugas” (monografía), Sterling Fluid Systems Group, 7ma edición, Madrid, España. Extraído de: https://www.sterlingsihi.com/cms/es/Spain/home/navegacion-rapida/descargas/libros.html en julio de 2018.
Turiño I. M. (1996). “Procedimientos metodológicos para el diagnóstico operacional en sistemas de bombeo mediante modelos matemáticos”, Tesis de doctorado, Facultad de Ingeniería Mecánica, Universidad Central de las Villas “Marta Abreu”, Santa Clara, Cuba.
Downloads
Published
How to Cite
Issue
Section
License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Authors who publish in this journal agree to the following terms:
a. The authors retain all copyrights and grant the journal the right to first publish the work as licensed under a Creative Commons Attribution-NonCommercial 4.0 Unported License that allows others to share the work with an acknowledgment of authorship. work and the initial publication in this journal.
b. Authors may separately establish additional agreements with the Editorial Committee for the publication of their work or a version of it in another journal, with an acknowledgment of its initial publication in this journal.
