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Davood Saeidi, Ahmad Sedaghat ⇑, Pourya Alamdari, Ali Akbar Alemrajabi, Aerodynamic design and economical evaluation of site specific small vertical axis wind turbines, Applied Energy 101 (2013) 765–775.

Aerodynamic design and economical evaluation of site specific small vertical
axis wind turbines
 
Davood Saeidi, Ahmad Sedaghat ⇑, Pourya Alamdari, Ali Akbar Alemrajabi
Department of Mechanical Engineering, Isfahan University of Technology, Isfahan 8415683111, Iran
 
a b s t r a c t
The growing demand for renewable energy with a sustainable and low-energy design is the main topic in
many countries. This could indeed influence in utilizing small wind turbines which incorporate innovative
designs and new materials of construction which may provide an attractive prospect of future applications
of power production in the urban environment. In particular, H-rotor type vertical axis wind
turbines (VAWTs) are considered as one of the most attractive solutions due to simplicity and ease of
manufacturing. Optimized site-specific designs proved reductions in cost of energy by increasing in
annual energy yield and a reduction in manufacturing costs. The greatest benefits were reported at sites
with low mean wind speed and low turbulence. The terrain studied here is a site in Fadashk area in the
province of south Khorasan in north east of Iran. The aim of this work is to design and optimize the site
specific H-rotor type VAWT using the blade element momentum theory (BEM) and a double multiple
stream tube model. The results of these analyses were then combined and synthesized for a 1.5 kW Hrotor
VAWT with NACA4415 airfoil sections. The economical feasibility of the designed VAWT is finally
integrated in the design procedure to predict annual production of electricity. Based on current electricity
costs that is 12 cent per kW h in Iran for renewable energies, our evaluation shows a profit of 6 cent per
each kW h generated power by the designed VAWT.
 
Keywords:
Wind energy
Vertical axis Wind turbines
H-rotor
Khorasan province
Blade element momentum theory
Double multiple stream tube
 

 

Journal Papers
Month/Season: 
August
Year: 
2013