Efficiency Comparison of Horizontal Low Head Spiral Turbine for Electrical Energy Production
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Abstract
This research aims to design and develop a compact generator system using horizontal spiral water turbines which can effectively gather waste energy from low flow rate water current without potential differences. The basic spiral turbine design was carried out through Arc-length Function (helix equation) to obtain spiral turbine prototypes for Laboratory testing. They had three spiral blades with tilt angles of 15, 18, 21, and 30 degrees. There were tested in-line flow tests with flow rates variations of 1.0, 1.25, 1.50, 1.75, and 2.00 m/s. The results revealed that the three spiral water turbines with 21 degrees blade tilt had the most RPM, torque and efficiency. This model could produce 457.09 RPM, 2.12 N.m of torque, and with 38.10 % efficiency at 2 m/s water flow rate generating 24.2 W of electricity. The study results showed potential development of the system and its enhancements to achieve better quality in the future.
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References
Xu, B., Zhang, J., Egusquiza, M., Chen, D., Li, F., Behrens, P., and Egusquiza, E. (2021). A Review of Dynamic Models and Stability Analysis for a Hydro-Turbine Governing System. Renewable and Sustainable Energy Reviews. Vol. 144, p. 110880. DOI:
1016/J.RSER.2021.110880
Thailand Power Development. (2015). Thailand Power Development Plan 2015-2036 (PDP2015). Energy Policy and Planning Office, thailand
Wanchat, S. (2014). Design and Development of Water Free Vortex Hydro Power Plant. Khon Kaen University
Hoghooghi, H., Durali, M., and Kashef, A. (2018). A New Low-Cost Swirler for Axial Micro Hydro Turbines of Low Head Potential. Renewable Energy. Vol. 128, Part A, pp. 375-390. DOI: 10.1016/J.RENENE.2018.05.086
Chaichan, W. and Kanchana, S. (2016). The Small Electric Power Generation from Coast Waves. RMUTI JOURNAL Science and Technology. Vol. 9, No. 2, pp. 108-117 (in Thai)
Sørnes, K. (2010). Small-scale Water Current Turbines for River Applications. ZERO - Zero Emission Resoruce Organisation
Suntivarakorn, R., Wanchat, S., and Monatrakul, W. (2016). An Experimental Study of Electricity Generation Using a Horizontal Spiral Turbine. Energy Procedia. Vol. 100, pp. 532-536. DOI: 10.1016/J.EGYPRO.2016.10.215
Nuantong, W. and Taechajedcadarungsri, S. (2016). Comparison of Flow Simulation of Very Low Head (VLH) Turbine Using RANS and LES. RMUTI JOURNAL Science and Technology. Vol. 9, No. 3, pp. 82-98 (in Thai)
Zhou, D., Gui, J., Deng, Z. D., Chen, H., Yu, Y., Yu, A., and Yang, C. (2019). Development of An Ultra-Low Head Siphon Hydro Turbine Using Computational Fluid Dynamics. Energy. Vol. 181, pp. 43-50. DOI: 10.1016/J.ENERGY.2019.05.060
Batchelor, C. K. and Batchelor, G. K. (1967). An Introduction to Fluid Dynamics. Cambridge University Press
Versteeg, H. K. and Malalasekera, W. (2007). An Introduction to Computational Fluid Dynamics. Pearson Education Limited
Sritram, P. and Suntivarakorn, R. (2017). Comparative Study of Small Hydropower Turbine Efficiency at Low Head Water. Energy Procedia. Vol. 138, pp. 646-650. DOI: 10.1016/J.EGYPRO.2017.10.181
Abolvafaei, M. and Ganjefar, S. (2020). Maximum Power Extraction from Fractional Order Doubly Fed Induction Generator Based wind Turbines Using Homotopy Singular Perturbation Method. International Journal of Electrical Power & Energy Systems. Vol. 119, p. 105889. DOI: 10.1016/J.IJEPES.2020.105889
Vennell, R. (2013). Exceeding the Betz Limit with Tidal Turbines. Renewable Energy. Vol. 55, pp. 277-285. DOI: 10.1016/J.RENENE.2012.12.016
Schubel, P. J. and Crossley, R. J. (2012). Wind Turbine Blade Design. Energies. Vol. 5, pp. 3425-3449. DOI: 10.3390/EN5093425
Herman, E. J. and Strang, G. (2016). Calculus. Rice University
Larson, Ron. (2015). Calculus: Early Transcendental Functions. 7th Edition. Bruce H. Edwards
Thomas, Jr., George B. Weir, Maurice D., and Hass, Joel, Heil, C. (2014). Thomas’ Calculus Thirteenth Edition (13th ed.). Pearson Education Limited