Improvement performance of centrifugal pumps is critical to reduce the consumption of electrical energy. One to improve the performance is to break down the circulation near the impeller exit. This can be achieved through the use of shorted blades. Effect of different sizes of shorted blade on pump performance is studied theoretically in this research which, test rig for testing centrifugal pump with standard impeller is constructed. Three impeller configurations with different size shorted blade are installed. The head, flow rate and shaft power are measured at 1500 rotational speed for the standard pump only. Also computational model using “Fluent” under ANSYS is constructed to predict the performance parameters of centrifugal pumps and to analyze the flow field in the impellers’ passages. Standard impeller (A) and three impellers configuration with different shorted blade length of 0.25 (configuration B), 0.2 (configuration C), and 0.15 (configuration D) of the full blade length are analyzed. Computational results show a reduction in flow circulation for all shorted blades impeller comparing to standard impeller. Also static pressure distributions at impeller exit become more uniform for impeller with 0.25, 0.2, and 0.15 shorted blades. The present work proves that the length of short blades have different effects for all pump cases. The best performance in this study occurred when shorted blades have length 25% from the original blade length. So when the effect of shorted blades is needed to study, each case of centrifugal pump should be investigated separately.
| Published in | International Journal of Mechanical Engineering and Applications (Volume 5, Issue 4) |
| DOI | 10.11648/j.ijmea.20170504.11 |
| Page(s) | 186-193 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2024. Published by Science Publishing Group |
Centrifugal Pump, CFD, Short Blades, Turbo Machine
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APA Style
Sami Abdelfatah Abd Elkgany El-Shaikh, Mohamed Attia Abdellatif, Abdullah Hussein Ibrahim Aboelnil. (2017). Numerical Investigation of Short Blades Effect on the Performance of a Centrifugal Pump. International Journal of Mechanical Engineering and Applications, 5(4), 186-193. https://doi.org/10.11648/j.ijmea.20170504.11
ACS Style
Sami Abdelfatah Abd Elkgany El-Shaikh; Mohamed Attia Abdellatif; Abdullah Hussein Ibrahim Aboelnil. Numerical Investigation of Short Blades Effect on the Performance of a Centrifugal Pump. Int. J. Mech. Eng. Appl. 2017, 5(4), 186-193. doi: 10.11648/j.ijmea.20170504.11
AMA Style
Sami Abdelfatah Abd Elkgany El-Shaikh, Mohamed Attia Abdellatif, Abdullah Hussein Ibrahim Aboelnil. Numerical Investigation of Short Blades Effect on the Performance of a Centrifugal Pump. Int J Mech Eng Appl. 2017;5(4):186-193. doi: 10.11648/j.ijmea.20170504.11
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Download@article{10.11648/j.ijmea.20170504.11,
author = {Sami Abdelfatah Abd Elkgany El-Shaikh and Mohamed Attia Abdellatif and Abdullah Hussein Ibrahim Aboelnil},
title = {Numerical Investigation of Short Blades Effect on the Performance of a Centrifugal Pump},
journal = {International Journal of Mechanical Engineering and Applications},
volume = {5},
number = {4},
pages = {186-193},
doi = {10.11648/j.ijmea.20170504.11},
url = {https://doi.org/10.11648/j.ijmea.20170504.11},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmea.20170504.11},
abstract = {Improvement performance of centrifugal pumps is critical to reduce the consumption of electrical energy. One to improve the performance is to break down the circulation near the impeller exit. This can be achieved through the use of shorted blades. Effect of different sizes of shorted blade on pump performance is studied theoretically in this research which, test rig for testing centrifugal pump with standard impeller is constructed. Three impeller configurations with different size shorted blade are installed. The head, flow rate and shaft power are measured at 1500 rotational speed for the standard pump only. Also computational model using “Fluent” under ANSYS is constructed to predict the performance parameters of centrifugal pumps and to analyze the flow field in the impellers’ passages. Standard impeller (A) and three impellers configuration with different shorted blade length of 0.25 (configuration B), 0.2 (configuration C), and 0.15 (configuration D) of the full blade length are analyzed. Computational results show a reduction in flow circulation for all shorted blades impeller comparing to standard impeller. Also static pressure distributions at impeller exit become more uniform for impeller with 0.25, 0.2, and 0.15 shorted blades. The present work proves that the length of short blades have different effects for all pump cases. The best performance in this study occurred when shorted blades have length 25% from the original blade length. So when the effect of shorted blades is needed to study, each case of centrifugal pump should be investigated separately.},
year = {2017}
}
TY - JOUR T1 - Numerical Investigation of Short Blades Effect on the Performance of a Centrifugal Pump AU - Sami Abdelfatah Abd Elkgany El-Shaikh AU - Mohamed Attia Abdellatif AU - Abdullah Hussein Ibrahim Aboelnil Y1 - 2017/07/05 PY - 2017 N1 - https://doi.org/10.11648/j.ijmea.20170504.11 DO - 10.11648/j.ijmea.20170504.11 T2 - International Journal of Mechanical Engineering and Applications JF - International Journal of Mechanical Engineering and Applications JO - International Journal of Mechanical Engineering and Applications SP - 186 EP - 193 PB - Science Publishing Group SN - 2330-0248 UR - https://doi.org/10.11648/j.ijmea.20170504.11 AB - Improvement performance of centrifugal pumps is critical to reduce the consumption of electrical energy. One to improve the performance is to break down the circulation near the impeller exit. This can be achieved through the use of shorted blades. Effect of different sizes of shorted blade on pump performance is studied theoretically in this research which, test rig for testing centrifugal pump with standard impeller is constructed. Three impeller configurations with different size shorted blade are installed. The head, flow rate and shaft power are measured at 1500 rotational speed for the standard pump only. Also computational model using “Fluent” under ANSYS is constructed to predict the performance parameters of centrifugal pumps and to analyze the flow field in the impellers’ passages. Standard impeller (A) and three impellers configuration with different shorted blade length of 0.25 (configuration B), 0.2 (configuration C), and 0.15 (configuration D) of the full blade length are analyzed. Computational results show a reduction in flow circulation for all shorted blades impeller comparing to standard impeller. Also static pressure distributions at impeller exit become more uniform for impeller with 0.25, 0.2, and 0.15 shorted blades. The present work proves that the length of short blades have different effects for all pump cases. The best performance in this study occurred when shorted blades have length 25% from the original blade length. So when the effect of shorted blades is needed to study, each case of centrifugal pump should be investigated separately. VL - 5 IS - 4 ER -
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