CFD simulations for selection of appropriate blade profile for improving energy efficiency in axial flow mine ventilation fans

• Autorzy: Panigrahi D. C. , Mishra D. P.

Identyfikatory

DOI

10.7424/jsm140104

• Języki publikacji: EN

Abstrakty

EN

Purpose This study focuses on one of the key design aspects of mine ventilation fans, i.e. the selection of an appropriate aerofoil blade profile for the fan blades in order to enhance the energy efficiency of axial flow mine ventilation fans, using CFD simulations. Methods Computational simulations were performed on six selected typical aerofoil sections using CFD code ANSYS Fluent 6.3.26 at angles of attack varying from 0 to 21 at an interval of 3 and at Reynolds number Re = 3 × 106, and various aerody-namic parameters, viz. coefficients of lift (Cl) and drag (Cd) as a function of angle of attack (α) were determined to assess the efficiency of the aerofoils. Results The study revealed that the angle of attack has a significant effect on the lift and drag coefficients and stall condition oc-curred at α values of 12 and 15 in most of the aerofoils. Based on the criterion of higher lift to drag ratio (Cl/Cd), a blade profile was chosen as the most efficient one for mine ventilation fans. Practical implications This study forms a basis for selecting appropriate blade profiles for the axial flow fans used for ventilation in mining industry. Originality/ value The application of an appropriate aerofoil blade profile will impart energy efficiency to the mine ventilation fans and thereby result in energy saving in mine ventilation.

Słowa kluczowe

EN

mine ventilation; axial flow fan; energy efficiency; lift; CFD; drag

PL

wentylacja kopalń; wentylator osiowy; efektywność energetyczna; winda; CFD

• Wydawca: Elsevier ; Główny Instytut Górnictwa
• Czasopismo: Journal of Sustainable Mining
• Rocznik: 2014
• Tom: Vol. 13, iss. 1
• Strony: 15--21
• Opis fizyczny: Bibliogr. 21 poz.

Twórcy

autor

Panigrahi D. C.

• Indian School of Mines (Dhanbad, Jharkhand, India)

autor

Mishra D. P.

• Department of Mining Engineering, Indian School of Mines (Dhanbad, Jharkhand, India)

Bibliografia

• Bai, Y., Sun, D., Lin, J., Williams, F., & Kennedy, D. (2012). Numerical aerodynamic simulations of a NACA airfoil using CFD with block-iterative coupling and turbulence modelling. International Journal of Computational Fluid Dynamics, 26(2), 119–132.
• Belle, B.K. (2008). Energy savings on mine ventilation fans using “Quick-Win” Hermit Crab Technology-A perspective. In Jr. K.G. Wallace (Ed.), 12th U.S./North American Mine Ventilation Symposium (pp. 427–433). Reno: The University of Nevada.
• Eck, B. (1973). Fans; design and operation of centrifugal, axial flow, and cross-flow fans. Oxford: Pergamon Press.
• Eckert, B. (1953). Axial Kompressoren und Radial Kompressoren. Berlin: Springer Verlag.
• Eleni, D.C., Athanasios, T.I., & Dionissios, M.P. (2012). Evaluation of the turbulence models for the simulation of the flow over a National Advisory Committee for Aeronautics (NACA) 0012 airfoil. Journal Mechanical Engineering Research, 4(3), 100–111.
• Hoo, E., Do, K.D., & Pan, J. (2005). An investigation on the lift force of a wing pitching in dynamic stall for a comfort control vessel. Journal of Fluids and Structure, 21, 707–730. Retrived from http:// www.ae.illinois.edu/m-selig/ads/coord_database.html. Accessed on 18.05.2011.
• Hustrulid, W.A., & Bullock, R.L. (2001). Underground mining methods: engineering fundamentals and international case studies. Englewood, CO: Society for Mining, Metallurgy and Exploration.
• Kieffer, W., Moujaes, S., & Armbya, N. (2006). CFD study of section characteristics of Formula Mazda race car wings. Mathematical and Computer Modelling, 43, 1275–1287.
• Krzystanek, Z., & Wasilewski, S. (1995). Monitoring and control of main fans for minimization of power consumption. In A.M. Wala (Ed.), Proceedings of the 7th US Mine Ventilation Symposium (pp. 75–81). Littleton, CO: Society for Mining, Metallurgy, and Exploration.
• Launder, B.E., & Spalding, D.B. (1974). The numerical computation of turbulent flows. Computer Methods in Applied Mechanics and Engineering, 3(2), 269–289.
• McPherson, M.J. (1983). Subsurface Ventilation and Environmental Engineering. Netherlands: Kluwer Academic Publishers.
• Mishra, D.P. (2004). A Study of Energy Consumption Profile of Main Mine Ventilation Fans and Development of a Technique to Reduce the Energy Requirement in Such Systems. Dissertation. Dhanbad: Indian School of Mines.
• Misra, G.B. (2002). Mine Environment and Ventilation. New Delhi: Oxford University Press.
• Oskam, B., & Sloof, J.W. (1998). Recent advances in computational aerodynamics at NLR. AIAA Paper 98-0138. doi: 10.2514/6. 1998-138.
• Panigrahi, D.C., Mishra, D.P., Divaker, C., & Sibal, S.J. (2009). Application of fibreglass reinforced plastic blades in main mine ventilation fans: an innovative concept of energy saving. In D.C. Panigrahi (Ed.), Mine Ventilation (pp. 709–715). New Delhi: Oxford & IBH Publishing Co. Pvt. Ltd.
• Rajakumar, S., & Ravindran, D. (2012). Iterative approach for optimising coefficient of power, coefficient of lift and drag of wind turbine rotor. Renewable Energy, 38(1), 83–93.
• Rumseya, C.L., & Ying, S.X. (2002). Prediction of high lift: review of present CFD capability. Progress in Aerospace Sciences, 38(2), 145–180.
• Sen, P.K. (1997). Reducing power consumption for axial flow mine ventilation fans. Journal of Mines, Metals and Fuels, 45(9–10), 301–303.
• Sharma, R.N. (2002). Economics of mine ventilation. In Proceedings of International Conference on Mineral Industry: Issues on Economics, Environment and Technology (pp. 75–87). India: The Mining, Geological and Metallurgical Institute of India.
• Vergne, J.N.D.L. (2003). The Hard Rock Miner’s Handbook. North Bay, ON: McIntosh Engineering Limited.
• Vutukuri, V.S., & Lama, R.D. (1986). Environmental Engineering in Mines. Cambridge: Cambridge University Press.