Experimental design and analysis of pump as turbine for microhydro system

Pump as Turbine (PAT) is typically used as electromechanical components in microhydro systems, especially by rural communities in developing countries to reduce initial capital cost. The technology is readily available and easily accessible compared to commercially available turbines. The aim of thi...

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Main Authors: Mohd Azlan Ismail, Wan Khairul Muzammil Abd Rahim, Md. Mizanur Rahman, M.W.K. Ibrahim, Mohd Suffian Misaran@Misran
Format: Conference or Workshop Item
Language:English
English
Published: 2017
Subjects:
Online Access:https://eprints.ums.edu.my/id/eprint/31627/1/Experimental%20design%20and%20analysis%20of%20pump%20as%20turbine%20for%20microhydro%20system_ABSTRACT.pdf
https://eprints.ums.edu.my/id/eprint/31627/2/Experimental%20design%20and%20analysis%20of%20pump%20as%20turbine%20for%20microhydro%20system.pdf
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author Mohd Azlan Ismail
Wan Khairul Muzammil Abd Rahim
Md. Mizanur Rahman
M.W.K. Ibrahim
Mohd Suffian Misaran@Misran
author_facet Mohd Azlan Ismail
Wan Khairul Muzammil Abd Rahim
Md. Mizanur Rahman
M.W.K. Ibrahim
Mohd Suffian Misaran@Misran
author_sort Mohd Azlan Ismail
collection UMS
description Pump as Turbine (PAT) is typically used as electromechanical components in microhydro systems, especially by rural communities in developing countries to reduce initial capital cost. The technology is readily available and easily accessible compared to commercially available turbines. The aim of this paper is to present the experimental design and analysis of PAT for microhydro systems over a range of rotational speeds. An end suction centrifugal pump was tested by inversing the flow across the pump. The rotational speed of the impeller was controlled by manipulating the braking force applied to the output shaft. The corresponding flow rate, pressure, and torque were recorded and presented. The experiment results show that the centrifugal pump can operate in turbine modes without any modification on mechanical components with the highest efficiency of 65.04%; however, at off-design operation, the efficiency decreases significantly due to unmatched flow velocity with the wall boundaries inside the pump.
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spelling ums.eprints-316272022-01-20T00:18:41Z https://eprints.ums.edu.my/id/eprint/31627/ Experimental design and analysis of pump as turbine for microhydro system Mohd Azlan Ismail Wan Khairul Muzammil Abd Rahim Md. Mizanur Rahman M.W.K. Ibrahim Mohd Suffian Misaran@Misran TK1001-1841 Production of electric energy or power. Powerplants. Central stations Pump as Turbine (PAT) is typically used as electromechanical components in microhydro systems, especially by rural communities in developing countries to reduce initial capital cost. The technology is readily available and easily accessible compared to commercially available turbines. The aim of this paper is to present the experimental design and analysis of PAT for microhydro systems over a range of rotational speeds. An end suction centrifugal pump was tested by inversing the flow across the pump. The rotational speed of the impeller was controlled by manipulating the braking force applied to the output shaft. The corresponding flow rate, pressure, and torque were recorded and presented. The experiment results show that the centrifugal pump can operate in turbine modes without any modification on mechanical components with the highest efficiency of 65.04%; however, at off-design operation, the efficiency decreases significantly due to unmatched flow velocity with the wall boundaries inside the pump. 2017 Conference or Workshop Item PeerReviewed text en https://eprints.ums.edu.my/id/eprint/31627/1/Experimental%20design%20and%20analysis%20of%20pump%20as%20turbine%20for%20microhydro%20system_ABSTRACT.pdf text en https://eprints.ums.edu.my/id/eprint/31627/2/Experimental%20design%20and%20analysis%20of%20pump%20as%20turbine%20for%20microhydro%20system.pdf Mohd Azlan Ismail and Wan Khairul Muzammil Abd Rahim and Md. Mizanur Rahman and M.W.K. Ibrahim and Mohd Suffian Misaran@Misran (2017) Experimental design and analysis of pump as turbine for microhydro system. In: International Conference on Materials Technology and Energy, 20 - 21 April 2017, Curtin University, Malaysia. https://iopscience.iop.org/article/10.1088/1757-899X/217/1/012014/pdf
spellingShingle TK1001-1841 Production of electric energy or power. Powerplants. Central stations
Mohd Azlan Ismail
Wan Khairul Muzammil Abd Rahim
Md. Mizanur Rahman
M.W.K. Ibrahim
Mohd Suffian Misaran@Misran
Experimental design and analysis of pump as turbine for microhydro system
title Experimental design and analysis of pump as turbine for microhydro system
title_full Experimental design and analysis of pump as turbine for microhydro system
title_fullStr Experimental design and analysis of pump as turbine for microhydro system
title_full_unstemmed Experimental design and analysis of pump as turbine for microhydro system
title_short Experimental design and analysis of pump as turbine for microhydro system
title_sort experimental design and analysis of pump as turbine for microhydro system
topic TK1001-1841 Production of electric energy or power. Powerplants. Central stations
url https://eprints.ums.edu.my/id/eprint/31627/1/Experimental%20design%20and%20analysis%20of%20pump%20as%20turbine%20for%20microhydro%20system_ABSTRACT.pdf
https://eprints.ums.edu.my/id/eprint/31627/2/Experimental%20design%20and%20analysis%20of%20pump%20as%20turbine%20for%20microhydro%20system.pdf
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