Optimizing Centrifugal Pump Performance by Different Blade Configuration Patterns
American Journal of Mechanical and Industrial Engineering
Volume 3, Issue 1, January 2018, Pages: 1-14
Received: Jan. 9, 2018; Accepted: Jan. 22, 2018; Published: Feb. 23, 2018
Views 1400      Downloads 126
Authors
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
Article Tools
Follow on us
Abstract
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.
Keywords
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
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.
References
[1]
Atia E. Khalifa, “Effect of Blade Exit Shape on Performance and Vibration of a Double Volute Centrifugal Pump.” International Journal of Materials, Mechanics, and Manufacturing, Vol. 2, No. 4, November 2014.
[2]
Md. Abdul Saleem, “Detection of Unbalance in Rotating Machines Using Shaft Deflection Measurement during Its Operation.”, IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE), ISSN: 2278-1684 Volume 3, Issue 3, PP 08-20, Sep-Oct. 2012.
[3]
Pranit M. Patil and R. G. Todkar, “An Overview of Effect of Splitter Blades on Centrifugal Pump Performance.”, International Journal of Engineering Research & Technology, Vol. 2, Issue 11, ISSN 2278-0181, November 2013.
[4]
Kamlesh J. Vasava and Mital Patel, “A General Review on Effect of Splitter Blade on the Performance of Centrifugal Pump.”, Afro-Asian International Conference on Science, Engineering & Technology, ISBN: 9-780993-909238, AAICSET, 2015.
[5]
Zhang Jinfeng, “Influence Of Splitter Blades On The Total Flow Field of A Low-Specific Centrifugal Pump.” Technology and Research Center of Fluid Machinery Engineering, Jiangsu University, Zhenjiang, 2013.
[6]
Pranit M. Patil, “Effect of Geometrical Changes of Impeller on Centrifugal Pump Performance.” International Research Journal of Engineering and Technology (IRJET), Volume: 02 Issue: 02, May, 2015.
[7]
Ravi Teggin, Shashank M Hebbal, and M. S. Hebbal, “Effect of Blade Geometry on Hydraulic Performance of the Centrifugal pump.” International Journal of Innovative Research in Science, Engineering and Technology, ISSN (Online): 2319-8753, ISSN (Print): 2347-6710, Vol. 5, Issue 7, July, 2016.
[8]
Abdellah Ait moussa and Lin Yunhao, “Improving the Hydraulic Efficiency of Centrifugal Pumps Through Computational Fluid Dynamics Based Design optimization.” Int. Journal of Engineering Research and Applications, ISSN: 2248-9622, Vol. 4, Issue 8 (Version1), pp. 158-165, August, 2014.
[9]
M. G. Patel and A. V. Doshi, “Effect of Impeller Blade Exit Angle on the Performance of Centrifugal Pump.” International Journal of Emerging Technology and Advanced Engineering, Website: ww.ijetae.com, ISSN 2250-2459, Volume 3, Issue 1, January, 2013.
[10]
Sami El-Shaikh, et al, ”Numerical Investigation of Short Blades Effect on the Performance of a Centrifugal Pump.” International Journal of Mechanical Engineering and Applications, pp: 186-193, ISSN: 2330-0248, 2017.
[11]
Johann Friedrich Gülich, "Centrifugal Pumps", Second edition, Springer-Verlag Berlin Heidelberg 2008, 2010, Springer Heidelberg Dordrecht London New York, Library of Congress Cont. No.: 2010928634, DOI 10.1007/978-3-642-12824-0, ISBN 978-3-642-12823-3.
ADDRESS
Science Publishing Group
548 FASHION AVENUE
NEW YORK, NY 10018
U.S.A.
Tel: (001)347-688-8931