Iranian Journal of Mechanical Engineering Transactions of ISME

Iranian Journal of Mechanical Engineering Transactions of ISME

Analysis and Field Study of INVELOX Wind Turbine

Authors
1 Engineering Manager / Wattwind Co.
2 Design and Manufacturing Manager / Wattwind Co.
3 Electrical Department Manager / Wattwind Co.
Abstract
INVELOX wind turbine is a new concept in harnessing wind energy. This technology gathers wind by omnidirectional or unidirectional intakes and increases wind velocity by concentrating wind in the venturi section. Then return it back to the environment through the diffuser. INVELOX technology offers suitable financial indicators and solves windmills environmental issues, like noise. Therefore, INVELOX becomes an opponent of fossil fuels. This technology uses 84% smaller blade compare to windmills, so it overcomes installation difficulties and it is an economically feasible system in wind energy industries.
In this paper, CFD simulations are used to evaluatethe speed ratio of 1.7 of the system and field data of a small scale INVELOX, installed in Siahpoush, Manjil was reported. In order to evaluat duct effects on the turbine performance, INVELOX turbine was compared to the traditional wind turbine with the same blade diameter. So output power and energy were recorded for both turbines. This study shows INVELOX has the ability to harness, deliver and accelerate free wind and produces more power and energy with a higher performance.
Keywords

Subjects


[1] Lilley, G.M., and Rainbird, W.J., “A Preliminary Report on the Design and Performance of a Ducted Windmill”, Report 102, College of Aeronautics, Cranfield U.K., (1956).
 
[2] Oman, R.A., Foreman, K.M., and Gilbert, B.L., “A Progress Report on the Diffuser Augmented Wind Turbine”, Proc. 3rd Biennial Conference and Workshop on Wind Energy Conversion Systems, Washington DC, USA, pp. 829-826, (1975)
 
[3] Igra, O., “Shrouds for Aerogenerators”, AIAA Journal, Vol. 14, No. 10, pp. 1481-1483, (1976).
 
[4] Gilbert, B.L., Oman, R.A., and Foreman, K.M., “Fluid Dynamics of DAWT's”, Journal of Energy, Vol. 2, pp. 368-374, (1978).
                                                       
[5] Van Bussel, G.J.W., “The Science of Making more Torque from Wind: Diffuser Experiments and Theory Revisited”, Journal of Physics: Conference Series, Vol. 75, No. 012010, pp. 1-12, (2007)
 
[6] Allaei, D., and Andreopoulos, Y., “INVELOX: A New Concept in Wind Energy Harvesting”, ASME 2013 7th International Conference on Energy Sustainability & 11th Fuel Cell Science, Engineering and Technology Conference ES-fuel Cell, July 14-19, Minneapolis, MN, USA, (2013).
 
[7] Allaei, D., Tarnowski, D., and Andreopoulos, Y., “INVELOX with Multiple Wind Turbine Generator Systems”, Energy Journal, Vol. 93, Part 1, pp. 1030–1040, (2015).
 
[8] Al-Bahadly, I.H., and Petersen, A.F.T., “A Ducted Horizontal Wind Turbine for Efficient Generation”, InTech, (2011).
 
[9] Abu-El-Yazied, T.G., Ali, A.M., Makady, A.M., and Hassan, I.M., “Optimizing the Duct Shape and Location for Improving Performance of Darrieus Wind Turbine”, International Journal of Current Engineering and Technology, Vol. 5, No. 1, pp. 1-8, (2015).
 
[10] Shives, M., and Crawford, C., “Computational Analysis of Ducted Turbine Performance”, Third International Conference on Ocean Energy, October 6, Bilbao, Spain, (2010).
Volume 19, Issue 2 - Serial Number 47
Fluid Mechanics and Heat Transfer
Autumn 2016
Pages 23-40

  • Receive Date 14 August 2016
  • Revise Date 08 March 2017
  • Accept Date 03 October 2017