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Performance Characteristics of an Innovative Wind Power System

Kerze, David James
http://rave.ohiolink.edu/etdc/view?acc_num=csu1203808948

Abstract Details

2007, Master of Science in Mechanical Engineering, Cleveland State University, Fenn College of Engineering.
This project entails a study of a wind energy recovery system that utilizes a unique three-dimensional spiral structure to amplify wind speed and direct it toward pluralities of turbines. The system is comprised of an outer spiral shell, internal support structure, turbines, and mechanisms for positioning the turbines to face the prevailing wind. Computational Fluid Dynamics (CFD) analyses were conducted to determine the wind speed amplification factors as a result of a simulated wind flow around the spiral structure. To ensure accuracy of the results, state of the art CFD techniques were applied using Gambit 2.2.30 and Fluent 6.2.16. Specifically, wind speed amplification factors were determined for 25ft and 30ft radius spiral shells. The velocity profiles of the wind flow around both spiral structures were obtained under a postulated 10mph wind speed. This resulted in a turbulent flow with a Reynolds number of 5,596,819. All analyses were run using “standard k-ε” turbulence model with the “near wall treatment” option “standard wall function”. A “y+” value of 50 was held constant in all vi simulations. The affect of the grid size on the accuracy of the results was examined. Convergence criterion was satisfied in each case. The 25ft radius spiral structure yielded an average velocity amplification factor of 1.524; while the 30ft radius resulted in an average amplification factor of 1.539. This particular information can help the designer of the system to select an appropriate overall shell size based not only on the mechanical efficiency, but also considering the cost and economical factors.
Majid Rashidi (Advisor)
144 p.
Wind; Turbines; Energy; Clean Energy; Green Energy; Wind Amplification; Fluent; Gambit; Wind Recovery; Reynolds Number; Mach Number; Velocity Magnitude; Velocity Contours; Spiral Structure; Numerical Methods

Recommended Citations

Citations

  • Kerze, D. J. (2007). Performance Characteristics of an Innovative Wind Power System [Master's thesis, Cleveland State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=csu1203808948

    APA Style (7th edition)

  • Kerze, David. Performance Characteristics of an Innovative Wind Power System. 2007. Cleveland State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=csu1203808948.

    MLA Style (8th edition)

  • Kerze, David. "Performance Characteristics of an Innovative Wind Power System." Master's thesis, Cleveland State University, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=csu1203808948

    Chicago Manual of Style (17th edition)

csu1203808948
1,425
© 2007, all rights reserved.
This open access ETD is published by Cleveland State University and OhioLINK.