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INVELOX: Description of a new concept in wind power and its performance evaluation

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  • Allaei, Daryoush
  • Andreopoulos, Yiannis

Abstract

A new concept in wind power harnessing is described which significantly outperforms traditional wind turbines of the same diameter and aerodynamic characteristics under the same wind conditions and it delivers significantly higher output, at reduced cost. Its first innovative feature is the elimination of tower-mounted turbines. These large, mechanically complex turbines, and the enormous towers used to hoist them into the sky, are the hallmark of today's wind power industry. They are also expensive, unwieldy, inefficient, and hazardous to people and wildlife. The second innovative feature of INVELOX is that it captures wind flow through an omnidirectional intake and thereby there is no need for a passive or active yaw control. Third, it accelerates the flow within a shrouded Venturi section which is subsequently expanded and released into the ambient environment through a diffuser. In addition, INVELOX provides solutions to all the major problems that have so far undermined the wind industry, such as low turbine reliability, intermittency issues and adverse environmental and radar impact. Simulating the performance of this wind delivery system is quite challenging because of the complexity of the wind delivery system and its interaction with wind at the front end and with a turbine at the back end. The objectives of the present work are to model and understand the flow field inside the INVELOX where the actual wind turbine is located as well the external flow field which not only provides the intake flow but also has to match the exhaust flow of the system. The present computations involved cases with different incoming wind directions and changes in the intake geometry. The results show that it is possible to capture, accelerate and concentrate the wind. Increased wind velocities result in significant improvement in the power output. These results led to the design of a demonstration facility which has provided actual data which verified the significantly increased power expectations.

Suggested Citation

  • Allaei, Daryoush & Andreopoulos, Yiannis, 2014. "INVELOX: Description of a new concept in wind power and its performance evaluation," Energy, Elsevier, vol. 69(C), pages 336-344.
    • Handle: RePEc:eee:energy:v:69:y:2014:i:c:p:336-344
    DOI: 10.1016/j.energy.2014.03.021
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    References listed on IDEAS

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    Cited by:

    1. Sotoudeh, Freshteh & Kamali, Reza & Mousavi, Seyed Mahmood, 2019. "Field tests and numerical modeling of INVELOX wind turbine application in low wind speed region," Energy, Elsevier, vol. 181(C), pages 745-759.
    2. Wong, Kok Hoe & Chong, Wen Tong & Sukiman, Nazatul Liana & Poh, Sin Chew & Shiah, Yui-Chuin & Wang, Chin-Tsan, 2017. "Performance enhancements on vertical axis wind turbines using flow augmentation systems: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 73(C), pages 904-921.
    3. Shaterabadi, Mohammad & Jirdehi, Mehdi Ahmadi & Amiri, Nima & Omidi, Sina, 2020. "Enhancement the economical and environmental aspects of plus-zero energy buildings integrated with INVELOX turbines," Renewable Energy, Elsevier, vol. 153(C), pages 1355-1367.
    4. Siahpour, Shahin & Khakiani, Fardad N. & Fazlollahi, Vahid & Golozar, Ali & Shirazi, Farzad A., 2021. "Morphing Omni-directional Panel Mechanism: A novel active roof design for improving the performance of the wind delivery system," Energy, Elsevier, vol. 217(C).
    5. Hosseini, S. Rasoul & Ganji, Davoud Domiri, 2020. "A novel design of nozzle-diffuser to enhance performance of INVELOX wind turbine," Energy, Elsevier, vol. 198(C).
    6. Anbarsooz, M. & Amiri, M. & Rashidi, I., 2019. "A novel curtain design to enhance the aerodynamic performance of Invelox: A steady-RANS numerical simulation," Energy, Elsevier, vol. 168(C), pages 207-221.
    7. N. Aravindhan & M. P. Natarajan & S. Ponnuvel & P.K. Devan, 2023. "Recent developments and issues of small-scale wind turbines in urban residential buildings- A review," Energy & Environment, , vol. 34(4), pages 1142-1169, June.
    8. Allaei, Daryoush & Tarnowski, David & Andreopoulos, Yiannis, 2015. "INVELOX with multiple wind turbine generator systems," Energy, Elsevier, vol. 93(P1), pages 1030-1040.
    9. Wekesa, David Wafula & Wang, Cong & Wei, Yingjie, 2016. "Empirical and numerical analysis of small wind turbine aerodynamic performance at a plateau terrain in Kenya," Renewable Energy, Elsevier, vol. 90(C), pages 377-385.
    10. Meratizaman, Mousa & Nateqi, Mojtaba, 2021. "Feasibility study of new generation of wind turbine (INVELOX), is it competitive with the Conventional Horizontal Axis Wind Turbine?," Energy, Elsevier, vol. 217(C).
    11. Nardecchia, Fabio & Groppi, Daniele & Astiaso Garcia, Davide & Bisegna, Fabio & de Santoli, Livio, 2021. "A new concept for a mini ducted wind turbine system," Renewable Energy, Elsevier, vol. 175(C), pages 610-624.
    12. Goldstein, Leo, 2015. "A proposal and a theoretical analysis of a novel concept of a tilted-axis wind turbine," Energy, Elsevier, vol. 84(C), pages 247-254.
    13. Han, Wanlong & Yan, Peigang & Han, Wanjin & He, Yurong, 2015. "Design of wind turbines with shroud and lobed ejectors for efficient utilization of low-grade wind energy," Energy, Elsevier, vol. 89(C), pages 687-701.
    14. Chong, Wen-Tong & Muzammil, Wan Khairul & Ong, Hwai-Chyuan & Sopian, Kamaruzzaman & Gwani, Mohammed & Fazlizan, Ahmad & Poh, Sin-Chew, 2019. "Performance analysis of the deflector integrated cross axis wind turbine," Renewable Energy, Elsevier, vol. 138(C), pages 675-690.
    15. Ghorani, Mohammad Mahdi & Karimi, Behrooz & Mirghavami, Seyed Mohammad & Saboohi, Zoheir, 2023. "A numerical study on the feasibility of electricity production using an optimized wind delivery system (Invelox) integrated with a Horizontal axis wind turbine (HAWT)," Energy, Elsevier, vol. 268(C).
    16. Elena Sosnina & Andrey Dar’enkov & Andrey Kurkin & Ivan Lipuzhin & Andrey Mamonov, 2022. "Review of Efficiency Improvement Technologies of Wind Diesel Hybrid Systems for Decreasing Fuel Consumption," Energies, MDPI, vol. 16(1), pages 1-38, December.
    17. Gao, Jie & Zheng, Qun & Jia, Xiaoquan, 2014. "Performance improvement of shrouded turbines with the management of casing endwall interaction flows," Energy, Elsevier, vol. 75(C), pages 430-442.
    18. Mehdi Ahmadi Jirdehi & Mohammad Shaterabadi, 2021. "A low‐carbon strategy using INVELOX turbines in the presence of real‐time energy price uncertainty," Greenhouse Gases: Science and Technology, Blackwell Publishing, vol. 11(3), pages 461-482, June.
    19. Chong, Wen-Tong & Muzammil, Wan Khairul & Wong, Kok-Hoe & Wang, Chin-Tsan & Gwani, Mohammed & Chu, Yung-Jeh & Poh, Sin-Chew, 2017. "Cross axis wind turbine: Pushing the limit of wind turbine technology with complementary design," Applied Energy, Elsevier, vol. 207(C), pages 78-95.

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