Volume 3, Issue 1, January 2018, Page: 1-14
Optimizing Centrifugal Pump Performance by Different Blade Configuration Patterns
Dalia Mohamed Sadek El-Gazzar, National Water Research Center, Mechanical and Electrical Research Institute, Cairo, Egypt
Said Abdel-Aleem Farag Hawash, National Water Research Center, Mechanical and Electrical Research Institute, Cairo, Egypt
Received: Jan. 9, 2018;       Accepted: Jan. 22, 2018;       Published: Feb. 23, 2018
DOI: 10.11648/j.ajmie.20180301.11      View  1902      Downloads  158
Impeller blades configuration is directly affecting the performance of the pump. Using splitter blades are one of the techniques that used to improve hydraulic performance. These modifications in the blades design are greatly affecting the dynamic performance of the pump. Splitting the blade changes its center of mass and makes it out of alignment with the center of rotation leading to eccentricity problem. The present research elucidates the effect of changing the blades configurations on both of hydraulic and dynamic performances. The impeller under study was designed such that, its shape could be changed using the splitting technique. The conventional blade could be defined as a baseline reference. Moreover, three additional configurations resulted from splitting impeller blades is hydraulically and dynamically investigated. The changes in flow rates, heads, and vibrations associated with each case were recorded and compared with the conventional case. Therefore the main results were clearly indicated as, the highest value of the pump maximum efficiency recorded for 3rd configuration (as the middle and the outer parts staggered at 24° and 48° backward), where the lowest value for 1st configuration (as the inner part of the blade staggered at 24° forward). On the other hand, the results showed that, splitting the impeller blade's leads to uneven distribution of masses around the impeller thus leading to unbalance problem. Moreover, Vibration increased as the extent of blades locations deviations increased. Therefore, to avoid unbalance problem the splitting the impeller blades have to be in urgently and narrowest uses, such as to decrease cavitation occurrence, this may be the important recommendation.
Blades Configuration, Splitting Technique, Hydraulic & Dynamic Performances, Eccentricity Problem
To cite this article
Dalia Mohamed Sadek El-Gazzar, Said Abdel-Aleem Farag Hawash, Optimizing Centrifugal Pump Performance by Different Blade Configuration Patterns, American Journal of Mechanical and Industrial Engineering. Vol. 3, No. 1, 2018, pp. 1-14. doi: 10.11648/j.ajmie.20180301.11
Copyright © 2018 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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