Vertical ducting and vertical-horizontal coaxial blade combination effects on the performance of vertical axis wind turbine (VAWT). | [Quaid-e-Awam University Research Journal of Engineering, Science and Technology • 2014]

Author(s):

1. Abdul Latif Manganhar: Department of Mechanical Engineering, Quaid-e-Awam University of Engineering, Sciences and Technology Nawabshah, Pakistan

2. Saleem Raza Samo: Department of Energy & Environment Engineering, Quaid-e- Awam University of Engineering, Science &Technology, Nawabshah, Pakistan

3. Mohammad Ramzan Luhur: Department of Mechanical Engineering Quaid-e-Awam University of Engineering, Sciences and Technology Nawabshah, Pakistan

4. Altaf Hussain Rajpar: Department of Mechanical Engineering Quaid-e-Awam University of Engineering, Sciences and Technology Nawabshah, Pakistan

Abstract:

Horizontal wind flow ducting of wind turbines is not new in the turbine history. It is conventionally applied with horizontal axis wind turbines to accelerate wind at turbine section to generate more power from low-speed wind. In few cases vertical axis wind turbines are integrated with wind accelerating duct structures to improve their power generation performance. This technique has been proved effective in low-speed wind zones and reviewed mostly to improve efficiency and environmental characteristics of VAWT. The present study experiences vertical ducting of VAWT with horizontal inflow and vertical outflow. A Vertical Cylindrical House was fabricated with horizontal inlet door and vertical opening. Auxiliary wind source ( low-speed open type wind tunnel) was used to inlet wind in the house changing the direction and velocity. Three rotor systems a/ Savonius Four Bladed VAWT, b/ Horizontal Blade-Vertical Axis Rotor(HB-VAR) and c/Vertical- Horizontal Coaxial Blade Combination, were developed and tested in the fabricated rotor house. Results of three setups were compared and concluded that vertical ducting of VAWT is more beneficial with vertical–horizontal coaxial blade combinations and can be preferred for low wind conditions.

Page(s): 1-6

DOI: DOI not available

Published: Journal: Quaid-e-Awam University Research Journal of Engineering, Science and Technology, Volume: 13, Issue: 1, Year: 2014

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