Advertisement

Journal of Mechanical Science and Technology

, Volume 32, Issue 11, pp 5443–5455 | Cite as

Effect of number of blades in ducted turbine system on kinetic energy extraction from chimney flue gases – benchmarking with wind energy system

  • Harjeet S. Mann
  • Pradeep K. Singh
Article

Abstract

A multi-blade ducted wind turbine, also called the diffuser augmented wind turbine (DAWT) has a good wind energy conversion effect over the traditional wind turbine. The market potential for energy recovery from the chimney flue gases made it necessary to explore the possibility of extraction of the energy from flue gases using the DAWT. The duct is a converging-diverging nozzle with the turbineblades located at the throat. In general 3 or more number of blades is frequently used to maximize the energy conversion to the bladetorque. The effect of number of blades on the power extraction by the energy recovery ducted turbine has been studied in this paper. A CFD-based simulation study has been carried out. The results so obtained have been benchmarked with the published data for the results for the ducted turbines for wind power generation. The general airfoil NACA4420, NACA4416 and NACA4412 were adopted to produce various composite profiles for turbine-blade. The large number of blades appears to provide the sufficient blade areas for the conversion of energy of flue gases to the turbine-rotor torque. On other hand the more number of blades also increases the blockage to the flue gases, resulting in increased back-flow. This paper presents the variation of power coefficient (CP) and torque coefficient (CT) with respect to the tip speed ratio (λ) for different number of blades, and varying blade geometry.

Keywords

Chimney flue gases Computational fluid dynamics Ducted turbine Energy recovery system Kinetic energy 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    A. O. Chikere, H. H. Al–Kayiem and Z. A. Abdu, Review on the enhancement techniques and introduction of an alternate enhancement techniques of solar chimney power plant, Journal of Applied Sciences, 11 (11) (2011) 1877–1884.CrossRefGoogle Scholar
  2. [2]
    N. Chilugodu, Y–J. Yoon, K. S. Chua, D. Datta, J. D. Baek, T. Park and W–T. Park, Simulation of train induced forced wind draft for generating electrical power from vertical axis wind turbine (VAWT), International Journal of Precision Engineering and Manufacturing, 13 (7) (2012) 1177–1181.CrossRefGoogle Scholar
  3. [3]
    K. H. Goh and F. Duan, Performance of a prototype micro wind turbine in the manmade wind field from air conditioner of buildings, QScience Connect, 4 (2013) 1–7.Google Scholar
  4. [4]
    H. S. Mann and P. K. Singh, Conceptual development of an energy recovery from the chimney flue gases using ducted turbine system, Journal of Natural Gas Science & Engineering, 33 (2016) 448–457.CrossRefGoogle Scholar
  5. [5]
    GIS Enabled Environment and Neo–graphic Centre (GreenC) for Kutch Power Generation Limited, Report: Draft EIA report of 5 660 MW super critical thermal power project, Bhadreswar, Kutch, Gujarat (2010) 164.Google Scholar
  6. [6]
    G. M. Lilley and W. J. Rainbird, A preliminary report on the design and performance of a ducted windmill, Report 102, College of Aeronautics, Cranfield, U.K. (1956).Google Scholar
  7. [7]
    O. Igra, Compact Shrouds for wind turbines, Energy Conversion, 16 (1977) 149–157.CrossRefGoogle Scholar
  8. [8]
    K. M. Foreman, B. Gilbert and R. A. Oman, Diffuser augmentation of wind turbines, Solar Energy, 20 (1978) 305–311.CrossRefGoogle Scholar
  9. [9]
    G. J. W. van Bussel, Power augmentation principles for wind turbines, The world directory of renewable energy, James & James, London, UK, 198–203 (1998).Google Scholar
  10. [10]
    C. J. Lawn, Optimization of the power output from ducted turbines, Journal of Power and Energy, 217 (2003) 107–117.CrossRefGoogle Scholar
  11. [11]
    M. M. Duquette and K. D. Visser, Numerical implications of solidity and blade number on rotor performance of horizontal axis wind turbines, Journal of Solar Energy Engineering, 125 (2003) 425–432.CrossRefGoogle Scholar
  12. [12]
    F. Bet and H. Grassmann, Upgrading conventional wind turbines, Renewable Energy, 28 (1) (2003) 71–78.CrossRefGoogle Scholar
  13. [13]
    A. Grant, C. Johnstone and N. Kelly, Urban wind energy conversion: The potential of ducted turbines, Renewable Energy, 33 (2008) 1157–1163.CrossRefGoogle Scholar
  14. [14]
    K. Abe, M. Nishida, A. Sakurai, Y. Ohya, H. Kihara, E. Wada and K. Sato, Experimental and numerical investigations of flow fields behind a small wind turbine with a flanged diffuser, Journal of Wind Engineering and Industrial Aerodynamics, 93 (2005) 951–970.CrossRefGoogle Scholar
  15. [15]
    T. Matsushima, S. Takagi and S. Muroyama, Characteristics of a highly efficient propeller type small wind turbine with a diffuser, Renewable Energy, 31 (2006)1343–1354.CrossRefGoogle Scholar
  16. [16]
    Y. Ohya, T. Karasudani, A. Sakurai, K. Abe and M. Inoue, Development of a shrouded wind turbine with a flanged diffuser, Journal of Wind Engineering and Industrial Aerodynamics, 96 (2008) 524–539.CrossRefGoogle Scholar
  17. [17]
    M. O. L. Hansen, Aerodynamics of wind turbines, Earthscan Sterling, VA (2008).Google Scholar
  18. [18]
    C. D. Chaudhari, S. A. Waghmare and A. P. Kotwal, Numerical analysis of venturi ducted horizontal axis wind turbine for efficient power generation, International Journal of Mechanical Engineering and Computer Applications, 1 (5) (2013) 90–93.Google Scholar
  19. [19]
    J. Wang, J. Piechna and N. Muller, Computational fluid dynamics investigation of a novel multiblade wind turbine in a duct, Journal of Solar Energy Engineering, 135 (2013) 011007–1–6.CrossRefGoogle Scholar
  20. [20]
    A. C. Aranake, V. K. Lakshminarayan and K. Duraisamy, Computational analysis of shrouded wind turbine configurations, 51st AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition, Grapevine, Texas (2013) 1–17.Google Scholar
  21. [21]
    W. T. Chong, S. C. Poh, A. Fazlizan, S. Y. Yip, C. K. Chang and W. P. Hew, Early development of an energy recovery wind turbine generator for exhaust air system, Applied Energy, 112 (2013) 568–575.CrossRefGoogle Scholar
  22. [22]
    W. T. Chong, W. P. Hew, S. Y. Yip, A. Fazlizan, S. C. Poh, C. J. Tan and H. C. Ong, The experimental study on the wind turbine’s guide–vanes and diffuser of an exhaust air energy recovery system integrated with the cooling tower, Energy Conversion and Management, 87 (2014) 145–155.CrossRefGoogle Scholar
  23. [23]
    M. A. Hasan, M. T. Hossain, R. Paul and N. Akter, Producing electrical energy by using wastage wind energy from exhaust fans of industries, International Journal of Scientific & Engineering Research, 4 (8) (2013) 1184–1187.Google Scholar
  24. [24]
    H. S. Mann and P. K. Singh, Kinetic energy recovery from the chimney flue gases using ducted turbine system, Chinese Journal of Mechanical Engineering, 30 (2017) 472–482.CrossRefGoogle Scholar
  25. [25]
    C. C. Hwang and J. C. Edwards, CFD modeling of smoke reversal, Technical report, National Institute for Occupational Safety and Health, Pittsburgh Research Laboratory, Pittsburgh, PA (2005).Google Scholar
  26. [26]
    J. M. M. Monteiro, J. C. Pascoa and F. M. R. P. Brojo, Simulation of the aerodynamic behaviour of a micro wind turbine, International Conference on Renewable Energies and Power Quality (ICREPQ’09), Valencia, Spain, April 15–17 (2009) 1–6.Google Scholar
  27. [27]
    E. Castineira–Martinez, I. Solis–Gallego, J. Gonzalez, J. Fernandez Oro, K. Arguelles Diaz and S. Velarde–Suarez, Application of computational fluid dynamics models to aerodynamic design and optimization of wind turbine airfoils, Renewable Energy and Power Quality Journal, 12 (2014) 1–6.Google Scholar
  28. [28]
    S. Hu and J. Cheng, Innovatory designs for ducted wind turbines, Renewable Energy, 33 (2008) 1491–1498.CrossRefGoogle Scholar
  29. [29]
    M. Shives and C. Crawford, Computational analysis of ducted turbine performance, 3rd International Conference on Ocean Energy, Bilbao, Spain, October 6–8 (2010) 1–6.Google Scholar
  30. [30]
    T. S. Kannan, S. A. Mutasher and Y. H. K. Lau, Design and flow velocity simulation of diffuser augmented wind turbine using CFD, Journal of Engineering Science and Technology, 8 (4) (2013) 372–384.Google Scholar
  31. [31]
    M. Chandrala, A. Choubey and B. Gupta, CFD analysis of horizontal axis wind turbine blade for optimum value of power, International Journal of Energy and Environment, 4 (5) (2013) 825–834.Google Scholar
  32. [32]
    S. H. Wang and S. H. Chen, Blade design for a ducted wind turbine, The 9th Asian International Conference on Fluid Machinery, Jeju, Korea (2007) 1–11.Google Scholar
  33. [33]
    L. Cho, S. Lee and J. Cho, Numerical and experimental analyses of the ducted fan for the small VTOL UAV propulsion, Transactions of the Japan Society for Aeronautical and Space Sciences, 56 (6) (2013) 328–336.CrossRefGoogle Scholar
  34. [34]
    K. Abe and Y. Ohya, An investigation of flow fields around flanged diffusers using CFD, Journal of Wind Engineering and Industrial Aerodynamics, 92 (2004) 315–330.CrossRefGoogle Scholar

Copyright information

© The Korean Society of Mechanical Engineers and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Deptt. of Mechanical EngineeringSLIETLongowal, PunjabIndia

Personalised recommendations