Open Access
Subscription Access
Finite Element Analysis of Axial Fan Blade with Different Chord Lengths
Nowadays, improving energy efficient systems is one of the most controversial and significant global focuses. However, this trend in the field of engineering concentrates on the optimization of the existing technologies more than implementing new ones. Meanwhile, fans are one of the potent devices to be more efficient. Improvement in fan efficiency can be achieved by reducing material that is used in the fan blades. Due to this, decreasing the airfoil chord length to optimum value, leads to a decline in the amount of used materials in the blade design and manufacturing. In fan designing, Factor of safety should be considered. This factor changes by varying the chord length of the airfoil. However, this paper attempts to analyze the factor of safety in an axial fan blade with different chord lengths by use of finite element method. Due to this, axial fan blade with NACA5514 airfoil that is made by Aluminum 6061-T91 will be analyzed to find the correlation between the factor of safety and chord length in various pressure loads. The load values are determined by the experimental test.
Keywords
Axial Fan Blade, Finite Element Method, Chord Length, Factor of Safety, Stress Analysis, NACA Airfoil
User
Information
- Abdullah O I, and Schlattmann J (2012). Stress Analysis of Axial Flow Fan, Adv. Theor. Appl. Mech, vol 5(6), 263-275.
- Anderson J D (2001). Fundamentals of aerodynamics,McGraw-Hill, New York, vol 2.
- Bleier F P (1998). Fan Handbook: selection, application, and design, McGraw-Hill, New York.
- Brophy C M (1994). Turbulence management and flow qualification of the Pennsylvania State University low-turbulence, low-speed, closed-circuit wind tunnel, Pennsylvania State University.
- Burton T, Sharpe D et al. (2001). Wind energy handbook, Closed-loop Control: Issues and Objectives, 2nd Edn., John Wiley & Sons, Ltd., UK, 478.
- Desai D J (2012). Optimization design of a low speed axial flow fan used for local ventilation in the mining industry, Lamar University, Beaumont.
- Foroni F D, Filho L A et al. (2007). Blade design and forming for fans using finite elements, Innovative Algorithms and Techniques in Automation, Industrial Electronics and Telecommunications, 135-140.
- Huang C H, and Gau C W (2012). An optimal design for axial-flow fan blade: theoretical and experimental studies, Journal of mechanical science and technology, vol 26(2), 427-436.
- Jacobs E N, Ward KE et al. (1933). The characteristics of 78 related airfoil sections from tests in the variable-density wind tunnel: US Government Printing Office.
- Jeong J, Park K et al. (2012). Design optimization of a wind turbine blade to reduce the fluctuating unsteady aerodynamic load in turbulent wind, Journal of Mechanical Science and Technology, vol 26(3), 827-838.
- Martin O L (2000). Hansen: Aerodynamics of Wind Turbines, Rotors, Loads and Structure: James & James Ltd., London, 89.
- Méndez J, and Greiner D (2006). Wind blade chord and twist angle optimization using genetic algorithms, Paper presented at the Fifth International Conference on Engineering Computational Technology, Las Palmas de Gran Canaria, Spain.
- Ramamurti V, and Sreenivasamurthy S (1980). Dynamic stress analysis of rotating twisted and tapered blades, The Journal of Strain Analysis for Engineering Design, vol 15(3), 117-126.
- Sarraf C, Nouri H et al. (2011). Experimental study of blade thickness effects on the overall and local performances of a Controlled Vortex Designed axial-flow fan, Experimental Thermal and Fluid Science, vol 35(4), 684-693.
- Somers D M (2005). Effects of Airfoil Thickness and Maximum Lift Coefficient on Roughness Sensitivity, National Renewable Energy Laboratory, USA.
- Zienkiewicz O C, and Taylor R L (2000). The Finite Element Method: Solid Mechanics, 5th Edn., Butterworth-Heinemann, vol 2.
- Zienkiewicz O C, Taylor R L et al. (2005). The finite element method: its basis and fundamentals, 6th Edn. Butterworth-Heinemann, vol 1.
Abstract Views: 670
PDF Views: 0