A novel aerodynamic controllable roof for improving performance of INVELOX wind delivery system

Abstract

INVELOX is a patented structure designed to capture the incident wind from every direction, guide the collected wind to the ground level, and increase its velocity. A novel mechanism called aerodynamic controllable roof structure is introduced to improve the wind stream performance of INVELOX. The advantages of aerodynamic controllable roof structure are twofold: improving efficiency and preventing wind escaping the system. Using aerodynamic controllable roof structure, a performance curve is obtained that can improve the system efficiency. Wind speed and orientation and structural deflection are the parameters that direct the roof orientation. Fuzzy control is utilized in a model structure to control the roof movements using two servo motors. Computational fluid dynamics simulations are done to validate the performance and capability of the aerodynamic controllable roof structure mechanism. Results show that the fuzzy control is successful in controlling the roof orientation and the results from the simulation indicate that the efficiency of the system can be increased up to 12%.

Keywords

Aerodynamic controllable roof structure wind delivery system controllable roof computational fluid dynamics

Get full access to this article

View all access options for this article.

References

Abe

Nishida

Sakurai

, et al. (2005) Experimental and numerical investigations of flow fields behind a small wind turbine with a flanged diffuser. Journal of Wind Engineering and Industrial Aerodynamics 93: 951–970.

Al-Bahadly

Peterse

AFT

(2011) A ducted horizontal wind turbine for efficient generation. In: Al-Bahadly

(ed.) Wind Turbines. Rijeka: InTech Open, pp. 87–106.

Allaei

Andreopoulos

(2014) INVELOX: Description of a new concept in wind power and its performance evaluation. Energy 69: 336–344.

Allaei

Tarnowski

Andreopoulos

(2015) INVELOX with multiple wind turbine generator systems. Energy 93: 1030–1040.

Anbarsooz

Amiri

Rashidi

(2019) A novel curtain design to enhance the aerodynamic performance of INVELOX: A steady-RANS numerical simulation. Energy 168: 207–221.

Anbarsooz

Hesam

Moetakef-Imani

(2017) Numerical study on the geometrical parameters affecting the aerodynamic performance of INVELOX. IET Renewable Power Generation 11: 791–798.

Chen

Letchfortd

(2004) A deterministic–stochastic hybrid model of downbursts and its impact on a cantilevered structure. Engineering Structures 26: 619–629.

Chenniappan

Balakrishnan

(2017) Container wind energy for wind turbines. In: 2017 international conference on computer communication and informatics (ICCCI), Coimbatore, India, 5–7 January, pp. 1–5. New York: IEEE.

Dehghani-Sanij

Soltani

Raahemifar

(2015) A new design of wind tower for passive ventilation in buildings to reduce energy consumption in windy regions. Renewable and Sustainable Energy Reviews 42: 182–195.

10.

Franković

Vrsalović

(2001) New high profitable wind turbines. Renewable Energy 24: 491–499.

11.

Georgalas

Koras

Raptis

(1991) Parametrization of the power enhancement calculated for ducted rotors with large tip clearance. Wind Energy 15: 128–136.

12.

Hassanli

Fletcher

, et al. (2018) Potential application of double skin façade incorporating aerodynamic modifications for wind energy harvesting. Journal of Wind Energy and Industrial Aerodynamics 174: 269–280.

13.

Hur

(2018) Modelling and control of a wind turbine and farm. Energy 156: 360–370.

14.

Jeong

Koh

Lee

(2002) Finite element formulation for the analysis of turbulent wind flow passing bluff structures using the RNG k–ε model. Journal of Wind Energy and Industrial Aerodynamics 90: 151–169.

15.

Kadum

Friedman

Camp

, et al. (2018) Development and scaling of a vertical axis wind turbine wake. Journal of Wind Energy and Industrial Aerodynamics 174: 303–311.

16.

Kimura

(2016) Wind loads. In: Pipinato

(ed.) Innovative Bridge Design Handbook. Oxford: Butterworth Heinemann, pp. 37–48.

17.

Knuplez

Chowdhury

Svecko

(2003) Modeling and control design for the ball and plate system. In: IEEE international conference on industrial technology, Maribor, 10–12 December, pp. 1064–1067. New York: IEEE.

18.

Lee

(1990) Fuzzy logic in control systems: Fuzzy logic controller. IEEE Transactions on Systems, Man, and Cybernetics: Systems 20: 404–418.

19.

Lin

W-M

Hong

C-M

(2010) Intelligent approach to maximum power point tracking control strategy for variable-speed wind turbine generation system. Energy 35: 2440–2447.

20.

Luo

Wang

Jiang

(2009) Wind-induced responses of a high-rise transmission tower to thunderstorm downbursts. In: The seventh Asia-Pacific conference on wind engineering, 8–12 November, Taipei.

21.

McLaren-Gow

Jamieson

Graham

JMR

(2013) A comparison between ducted turbine theory and inviscid simulation. In: 2nd IET renewable power generation conference (RPG 2013), Beijing, China, 9–11 September, p. 3.48. London: Institution of Engineering and Technology.

22.

Shen

Zhu

(2011) Wind turbine aerodynamics and loads control in wind shear flow. Energy 36: 1424–1434.

23.

Yakhot

Orszag

Thangam

, et al. (1992) Development of turbulence models for shear flows by a double expansion technique. Physics Fluids A Fluid Dynamics 4: 1510–1520.