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Experimental characterization and comparison of performance parameters of S-rotors for standalone wind power system

An open wind flow test of seven Savonius models was conducted to explore the influence of design parameters on the performance and starting characteristics. The seven rotors are coded as Model 1 to Model 7, with various blade designs, number of blades, and number of stages. Results demonstrated that...

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Main Authors: Bhayo, B.A., Al-Kayiem, H.H.
Format: Article
Published: Elsevier Ltd 2017
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85026375200&doi=10.1016%2fj.energy.2017.07.128&partnerID=40&md5=3166c52b9789b91be4a7814b9214171b
http://eprints.utp.edu.my/19802/
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spelling my.utp.eprints.198022018-04-20T08:12:33Z Experimental characterization and comparison of performance parameters of S-rotors for standalone wind power system Bhayo, B.A. Al-Kayiem, H.H. An open wind flow test of seven Savonius models was conducted to explore the influence of design parameters on the performance and starting characteristics. The seven rotors are coded as Model 1 to Model 7, with various blade designs, number of blades, and number of stages. Results demonstrated that Model 1, a modified two-blade single-stage conventional S-rotor, has the highest power coefficient of 0.26. Model 1 also exhibited an improved maximum power coefficient of about 47 than the previously reported in the literature due to increasing of the aspect ratio from 0.77 to 2.0. The power coefficient of double-stage Savonius-rotors was found to be lower by about 11–20 than the identical design single-stage S-rotors. The static torque assessment exhibited that double-stage rotors and rotor with more than three blades do not have any negative torque angle position. Nonetheless, the single-stage Savonius-rotor, even with three blades, has few negative torque angles. The study suggests that Model 2, modified double-stage rotor and Model 5, conventional double stage rotor with overlap ratio of 0.2, are most suitable rotors for stand-alone wind power systems, where they have not shown any negative torque angle, in spite that the power coefficient can be sacrificed for the sake of improved starting ability. © 2017 Elsevier Ltd Elsevier Ltd 2017 Article PeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85026375200&doi=10.1016%2fj.energy.2017.07.128&partnerID=40&md5=3166c52b9789b91be4a7814b9214171b Bhayo, B.A. and Al-Kayiem, H.H. (2017) Experimental characterization and comparison of performance parameters of S-rotors for standalone wind power system. Energy, 138 . pp. 752-763. http://eprints.utp.edu.my/19802/
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
description An open wind flow test of seven Savonius models was conducted to explore the influence of design parameters on the performance and starting characteristics. The seven rotors are coded as Model 1 to Model 7, with various blade designs, number of blades, and number of stages. Results demonstrated that Model 1, a modified two-blade single-stage conventional S-rotor, has the highest power coefficient of 0.26. Model 1 also exhibited an improved maximum power coefficient of about 47 than the previously reported in the literature due to increasing of the aspect ratio from 0.77 to 2.0. The power coefficient of double-stage Savonius-rotors was found to be lower by about 11–20 than the identical design single-stage S-rotors. The static torque assessment exhibited that double-stage rotors and rotor with more than three blades do not have any negative torque angle position. Nonetheless, the single-stage Savonius-rotor, even with three blades, has few negative torque angles. The study suggests that Model 2, modified double-stage rotor and Model 5, conventional double stage rotor with overlap ratio of 0.2, are most suitable rotors for stand-alone wind power systems, where they have not shown any negative torque angle, in spite that the power coefficient can be sacrificed for the sake of improved starting ability. © 2017 Elsevier Ltd
format Article
author Bhayo, B.A.
Al-Kayiem, H.H.
spellingShingle Bhayo, B.A.
Al-Kayiem, H.H.
Experimental characterization and comparison of performance parameters of S-rotors for standalone wind power system
author_facet Bhayo, B.A.
Al-Kayiem, H.H.
author_sort Bhayo, B.A.
title Experimental characterization and comparison of performance parameters of S-rotors for standalone wind power system
title_short Experimental characterization and comparison of performance parameters of S-rotors for standalone wind power system
title_full Experimental characterization and comparison of performance parameters of S-rotors for standalone wind power system
title_fullStr Experimental characterization and comparison of performance parameters of S-rotors for standalone wind power system
title_full_unstemmed Experimental characterization and comparison of performance parameters of S-rotors for standalone wind power system
title_sort experimental characterization and comparison of performance parameters of s-rotors for standalone wind power system
publisher Elsevier Ltd
publishDate 2017
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85026375200&doi=10.1016%2fj.energy.2017.07.128&partnerID=40&md5=3166c52b9789b91be4a7814b9214171b
http://eprints.utp.edu.my/19802/
_version_ 1738656121434931200
score 13.211869

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