Research Article | OPEN ACCESS
Performance of a Centrifugal Slurry Pump
1Hawas Yahya Bajawi, 2Basharat Salim and 2Ziyadh Suhibani
1Assets Department, Riyadh City Business Unit, National Water Company,
Riyadh, Saudi Arabia
2Department of Mechanical Engineering, College of Engineering,
King Saud University, Riyadh, Saudi Arabia
Research Journal of Applied Sciences, Engineering and Technology 2014 8:1573-1581
Received: May 17, 2013 | Accepted: June 14, 2013 | Published: February 27, 2014
Abstract
The aim of this study was to experimentally investigate the effect of speed, concentration and size of slurry on the performance of a centrifugal pump. For this purpose a facility was built where the performance of a centrifugal slurry pump was examined using aggregate slurry. Three sizes of slurry with three concentrations and at three impeller speeds were used for the performance investigations of a centrifugal slurry pump. As a reference performance the performance of centrifugal slurry pump was also tested with clean water. The performance of pump has been reported as variations of head, power and efficiency at various flow rates along with the system characteristics of the pump. The results reveal that the pump performance is grossly affected by the type of slurry, its concentration and size. Besides this the variation in speed also affects the performance as is observed in pumps with water. The maximum decrease in the head, with respect to clear water, at the operating point was found to be 47% for aggregate for size 20 mm, 15% concentration and 2600 rpm. The maximum decrement in efficiency at operating point for aggregate was found to be 47% for 4 mm size, 15% concentration and at 2200 rpm. The power increment requirement for aggregate was 9% for 4 mm size, 15% concentration and 2600 rpm.
Keywords:
Aggregate, concentration, performance, pump, slurry,
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Competing interests
The authors have no competing interests.
Open Access Policy
This article is 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, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
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The authors have no competing interests.
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