The design, simulation and testing of an urban vertical axis wind turbine with the omni-direction-guide-vane

W. T. Chong, Ahmad Fazlizan Abdullah, S. C. Poh, K. C. Pan, W. P. Hew, F. B. Hsiao

Research output: Contribution to journalArticle

73 Citations (Scopus)

Abstract

A novel omni-direction-guide-vane (ODGV) that surrounds a vertical axis wind turbine (VAWT) is designed to improve the wind turbine performance. Wind tunnel testing was performed to evaluate the performance of a 5-bladed (Wortmann FX63-137 airfoil) H-rotor wind turbine, with and without the integration of the ODGV. The test was conducted using a scaled model turbine which was constructed to simulate the VAWT enclosed by the ODGV placed on a building. The VAWT shows an improvement on its self-starting behavior where the cut-in speed was reduced with the integration of the ODGV. Since the VAWT is able to self-start at a lower wind speed, the working hour of the wind turbine would increase. At a wind speed of 6. m/s and under free-running condition (only rotor inertia and bearing friction were applied), the ODGV helps to increase the rotor rotational speed by 182%. With extra load application at the same wind speed (6. m/s), the wind turbine power output was increased by 3.48 times at its peak torque with the aid of the ODGV. The working concept of the ODGV is to minimize the negative torque zone of a lift-type VAWT and to reduce turbulence and rotational speed fluctuation. It was verified by re-simulating the torque coefficient data of a single bladed (NACA 0015 airfoil) VAWT published by the Sandia National Laboratories. From the simulation results, with the presence of the ODGV, it was shown that the torque output of the NACA 0015 airfoil, single bladed VAWT has been increased by 58% and 39% at TSR. = 2.5 and TSR. = 5.1 respectively. The negative torque zone has been minimized thus the positive torque that provides higher power can be obtained. As a conclusion, the ODGV integrated wind power generation system improves the power output of a VAWT and it has great potential to be sited in urban areas for on-site and grid-connected power generation.

Original languageEnglish
Pages (from-to)601-609
Number of pages9
JournalApplied Energy
Volume112
DOIs
Publication statusPublished - 1 Jan 2013
Externally publishedYes

Fingerprint

wind turbine
Wind turbines
Testing
torque
simulation
Torque
Airfoils
Rotors
wind velocity
power generation
Power generation
Bearings (structural)
wind power
wind tunnel
inertia
turbine
Wind power
Wind tunnels
Turbulence
Turbines

Keywords

  • Building integrated renewable energy system
  • Computational fluid dynamics
  • Environment friendly
  • Guide vane
  • Wind turbine
  • Wind-solar energy system

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Energy(all)
  • Mechanical Engineering
  • Management, Monitoring, Policy and Law

Cite this

The design, simulation and testing of an urban vertical axis wind turbine with the omni-direction-guide-vane. / Chong, W. T.; Abdullah, Ahmad Fazlizan; Poh, S. C.; Pan, K. C.; Hew, W. P.; Hsiao, F. B.

In: Applied Energy, Vol. 112, 01.01.2013, p. 601-609.

Research output: Contribution to journalArticle

Chong, W. T. ; Abdullah, Ahmad Fazlizan ; Poh, S. C. ; Pan, K. C. ; Hew, W. P. ; Hsiao, F. B. / The design, simulation and testing of an urban vertical axis wind turbine with the omni-direction-guide-vane. In: Applied Energy. 2013 ; Vol. 112. pp. 601-609.
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