Numerical investigations on the effect of blade angles of a vertical axis wind turbine on its performance output

Kyoo Seon Park, Taimoor Asim, Rakesh Mishra

Research output: Contribution to journalConference article

Abstract

There are many social, political and environmental issues associated with the use of fossil fuels. For this reason, there are numerous investigations currently being carried out to develop newer and renewable sources of energy to alleviate energy demand. Wind is one source of energy that can be harnessed using wind turbines. In this study, numerical investigations using Computational Fluid Dynamics (CFD) solver have been carried out to determine the optimum blade angles of a wind turbine used in urban environment. The effect of these blade angles have been considered to be within the normal operating range (a from 1.689° to 21.689°, Y from 18.2° to 38.2° and 8 from 22.357° to 42.357°) while β was kept constant at 90° due to design requirements. The results show that as a increases average torque output increases to a certain point after which it remains constant. On the contrary, as γ and δ increase, average torque output decreases. From the results, it can be concluded that the ideal blade angles, for optimal torque output, are α=11.689°, γ=18.2° and δ=22.357°.

LanguageEnglish
Pages3-10
Number of pages8
JournalInternational Journal of COMADEM
Volume18
Issue number3
Publication statusPublished - 1 Jul 2015
Event27th International Congress of Condition Monitoring and Diagnostic Engineering Management - Brisbane Convention and Exhibition Centre, Brisbane, Australia
Duration: 16 Sep 201418 Sep 2014
Conference number: 27

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Wind turbines
Turbomachine blades
Torque
Fossil fuels
Computational fluid dynamics
Energy
Environmental issues
Urban environment
Energy demand

Cite this

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title = "Numerical investigations on the effect of blade angles of a vertical axis wind turbine on its performance output",
abstract = "There are many social, political and environmental issues associated with the use of fossil fuels. For this reason, there are numerous investigations currently being carried out to develop newer and renewable sources of energy to alleviate energy demand. Wind is one source of energy that can be harnessed using wind turbines. In this study, numerical investigations using Computational Fluid Dynamics (CFD) solver have been carried out to determine the optimum blade angles of a wind turbine used in urban environment. The effect of these blade angles have been considered to be within the normal operating range (a from 1.689° to 21.689°, Y from 18.2° to 38.2° and 8 from 22.357° to 42.357°) while β was kept constant at 90° due to design requirements. The results show that as a increases average torque output increases to a certain point after which it remains constant. On the contrary, as γ and δ increase, average torque output decreases. From the results, it can be concluded that the ideal blade angles, for optimal torque output, are α=11.689°, γ=18.2° and δ=22.357°.",
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Numerical investigations on the effect of blade angles of a vertical axis wind turbine on its performance output. / Park, Kyoo Seon; Asim, Taimoor; Mishra, Rakesh.

In: International Journal of COMADEM, Vol. 18, No. 3, 01.07.2015, p. 3-10.

Research output: Contribution to journalConference article

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