Selection of airfoils for straight-bladed vertical axis wind turbines based on desirable aerodynamic characteristics

Selection of the airfoil is crucial for better aerodynamic performance and dimensions of a smaller-capacity SB-VAWT which can compete with conventional energy sources in niche markets like urban areas and off-grid remote applications for diversified applications. Airfoil related design changes also...

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Main Authors:	Islam, Mazharul, Amin, M. Ruhul, Ting, David S-K, Fartaj, Amir
Format:	Conference or Workshop Item
Language:	English
Published:	2008
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://irep.iium.edu.my/56949/ http://irep.iium.edu.my/56949/ http://irep.iium.edu.my/56949/1/26-IMECE2008-66027.pdf

id	iium-56949
recordtype	eprints
spelling	iium-569492017-05-22T04:31:48Z http://irep.iium.edu.my/56949/ Selection of airfoils for straight-bladed vertical axis wind turbines based on desirable aerodynamic characteristics Islam, Mazharul Amin, M. Ruhul Ting, David S-K Fartaj, Amir TJ Mechanical engineering and machinery Selection of the airfoil is crucial for better aerodynamic performance and dimensions of a smaller-capacity SB-VAWT which can compete with conventional energy sources in niche markets like urban areas and off-grid remote applications for diversified applications. Airfoil related design changes also have the potential for increasing the cost effectiveness of VAWTs. Recently, Islam et. al [1] have identified the desirable features of an ideal airfoil for smaller capacity SB-VAWT to improve its starting characteristics and overall performance. They have shortlisted several aerodynamic characteristics of the desirable airfoil. Based on these desirable aerodynamic characteristics, an attempt has been made in this paper to shortlist ten prospective candidate airfoils for smaller-capacity SB-VAWT. This is done using both experimental and analytical characteristics. Nine performance indices have been defined in this paper in light of desirable aerodynamic characteristics to select best performing airfoil. These performance indices are utilized for considering the following desirable aerodynamic characteristics: (i) stall angle at low Reynolds number, (ii) width of the drag bucket, (iii) zero-lift-drag coefficient, (iv) Cl /Cd ratio, (v) maximum lift-coefficient, (vi) deep-stall angle, (vii) roughness sensitivity, (viii) trailing edge noise generation, and (ix) pitching moment. Here, Cl and Cd are coefficients of lift and drag respectively. After determining the value of the performance indices and rating of the candidate airfoils, the most promising airfoil is selected. Among the ten candidate airfoils, overall rating of NASA LS(1)-0417 has been found to be the best. 2008 Conference or Workshop Item PeerReviewed application/pdf en http://irep.iium.edu.my/56949/1/26-IMECE2008-66027.pdf Islam, Mazharul and Amin, M. Ruhul and Ting, David S-K and Fartaj, Amir (2008) Selection of airfoils for straight-bladed vertical axis wind turbines based on desirable aerodynamic characteristics. In: 2008 International Mechanical Engineering Congress and Exposition, 31st Oct.- 6th Nov. 2008, Boston, Massachusetts, USA. http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=1642285
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Islam, Mazharul Amin, M. Ruhul Ting, David S-K Fartaj, Amir Selection of airfoils for straight-bladed vertical axis wind turbines based on desirable aerodynamic characteristics
description	Selection of the airfoil is crucial for better aerodynamic performance and dimensions of a smaller-capacity SB-VAWT which can compete with conventional energy sources in niche markets like urban areas and off-grid remote applications for diversified applications. Airfoil related design changes also have the potential for increasing the cost effectiveness of VAWTs. Recently, Islam et. al [1] have identified the desirable features of an ideal airfoil for smaller capacity SB-VAWT to improve its starting characteristics and overall performance. They have shortlisted several aerodynamic characteristics of the desirable airfoil. Based on these desirable aerodynamic characteristics, an attempt has been made in this paper to shortlist ten prospective candidate airfoils for smaller-capacity SB-VAWT. This is done using both experimental and analytical characteristics. Nine performance indices have been defined in this paper in light of desirable aerodynamic characteristics to select best performing airfoil. These performance indices are utilized for considering the following desirable aerodynamic characteristics: (i) stall angle at low Reynolds number, (ii) width of the drag bucket, (iii) zero-lift-drag coefficient, (iv) Cl /Cd ratio, (v) maximum lift-coefficient, (vi) deep-stall angle, (vii) roughness sensitivity, (viii) trailing edge noise generation, and (ix) pitching moment. Here, Cl and Cd are coefficients of lift and drag respectively. After determining the value of the performance indices and rating of the candidate airfoils, the most promising airfoil is selected. Among the ten candidate airfoils, overall rating of NASA LS(1)-0417 has been found to be the best.
format	Conference or Workshop Item
author	Islam, Mazharul Amin, M. Ruhul Ting, David S-K Fartaj, Amir
author_facet	Islam, Mazharul Amin, M. Ruhul Ting, David S-K Fartaj, Amir
author_sort	Islam, Mazharul
title	Selection of airfoils for straight-bladed vertical axis wind turbines based on desirable aerodynamic characteristics
title_short	Selection of airfoils for straight-bladed vertical axis wind turbines based on desirable aerodynamic characteristics
title_full	Selection of airfoils for straight-bladed vertical axis wind turbines based on desirable aerodynamic characteristics
title_fullStr	Selection of airfoils for straight-bladed vertical axis wind turbines based on desirable aerodynamic characteristics
title_full_unstemmed	Selection of airfoils for straight-bladed vertical axis wind turbines based on desirable aerodynamic characteristics
title_sort	selection of airfoils for straight-bladed vertical axis wind turbines based on desirable aerodynamic characteristics
publishDate	2008
url	http://irep.iium.edu.my/56949/ http://irep.iium.edu.my/56949/ http://irep.iium.edu.my/56949/1/26-IMECE2008-66027.pdf
first_indexed	2023-09-18T21:20:25Z
last_indexed	2023-09-18T21:20:25Z
_version_	1777411844744413184

Selection of airfoils for straight-bladed vertical axis wind turbines based on desirable aerodynamic characteristics

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