Vertical axis wind turbine with omni-directional-guide-vane for urban high-rise buildings |
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| Authors: | W T Chong S C Poh A Fazlizan and K C Pan |
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| Affiliation: | [1]Department of Mechanical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia [2]UMPEDAC, Level 4, Engineering Tower, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia |
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| Abstract: | A novel shrouded wind-solar hybrid renewable energy and rain water harvester with an omni-directional-guide-vane (ODGV) for
urban high-rise application is introduced. The ODGV surrounds the vertical axis wind turbine (VAWT) and enhances the VAWT
performance by increasing the on-coming wind speed and guiding it to an optimum flow angle before it interacts with the rotor
blades. An ODGV scaled model was built and tested in the laboratory. The experimental results show that the rotational speed
of the VAWT increases by about 2 times. Simulations show that the installation of the ODGV increases the torque output of
a single-bladed VAWT by 206% for tip speed ratio of 0.4. The result also reveals that higher positive torque can be achieved
when the blade tangential force at all radial positions is optimized. In conclusion, the ODGV improves the power output of
a VAWT and this integrated design promotes the installation of wind energy systems in urban areas. |
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| Keywords: | vertical axis wind turbine green architecture omni-directional-guide-vane wind-solar-rain water harvester urban wind energy generation |
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