Effect of Savonius blade height on the performance of a hybrid Darrieus-Savonius wind turbine

Dewi Puspitasari; Kaprawi Sahim

doi:10.15282/jmes.13.4.2019.09.0465

Authors

Dewi Puspitasari Mechanical Engineering, Faculty of Engineering, Sriwijaya University, Jl. Raya Palembang-Prabumulih KM. 32 Indralaya 30662, Indonesia.
Kaprawi Sahim Mechanical Engineering, Faculty of Engineering, Sriwijaya University, Jl. Raya Palembang-Prabumulih KM. 32 Indralaya 30662, Indonesia.

DOI:

https://doi.org/10.15282/jmes.13.4.2019.09.0465

Keywords:

Wind Turbine, Darrieus, Savonius, Performance, Hybrid, Blade height

Abstract

A vertical hybrid turbine commonly consists of a Darrieus and Savonius rotor where the Savonius is inside Darrieus turbine. This paper describes the experimental study of hybrid Darrieus-Savonius wind turbines by variation in Savonius blade height. In this case, the effect of the blade height of the Savonius blade was studied experimentally in a subsonic wind tunnel. The effect of the height of a Savonius blade relative to that of Darrieus called blade height ratios δ was investigated to know the hybrid turbine performance. The performance is represented by power and torque coefficient. The result shows that the hybrid turbine with height ratio greater than unity δ = 1.4 gives the highest power C_P = 0.20 and torque coefficient C_T = 0.129. It is investigated that the torque and the power coefficient have a higher value than that of Darrieus turbine, in which the increase in power and torque coefficient are 48% and 29%, respectively. This hybrid wind turbine with a blade height ratio greater than unity can be considered as an important variable in the wind turbine construction.

References

Kamil K. Wind energy: Progress and potential. Energy Sources. 2004;26:95–105.

Joselin Herberta GM, Iniyanb S, Sreevalsanc E, Rajapandiand S. A review of wind energy technologies. Renewable and Sustainable Energy Reviews. 2007;11 :1117–1145.

Reda E, Rozli Z, Harun Z. Large eddy simulation of wind flow through an urban environment in its full-scale wind tunnel models. Journal of Mechanical Engineering and Sciences. 2017;11(2):2665–2678.

Mahmoud NH, El-Haroun AA, Wahba E, Nasef MH. An experimental study on improvement of Savonius rotor performance. Alexandria Engineering Journal. 2012;51(1):19–25.

Sheldahl RE, Feltz LV, Blackwell BF. Wind tunnel performance data for two- and three-bucket Savonius rotors. Sandia Laboratories, USA 1978; Sand 76-0131 Under Act AT/29-11: 789.

Migliore PG, Fritschen JR. Darrieus wind turbine airfoil configurations. Solar Energy Research Institute, USA. 1982.

Yaakub MF, Wahab AA, Abdullah A, Nik Mod NAR, Shamsuddin SS. Aerodynamic prediction of helicopter rotor in forward flight using blade element theory. Journal of Mechanical Engineering and Sciences. 2017;11(2):2711–2722.

Satrio D, Ketut Aria Pria Utama I, Mukhtasor. The influence of time step setting on the CFD simulation result of vertical axis tidal current turbine. Journal of Mechanical Engineering and Sciences. 2018;12(1):3399–3409.

Wilson RE, Lissaman PBS. Applied aerodynamics of wind machines 1974.

Siddiqui A, Hameed A, Mian SN, Khatoon R. Experimental Investigations of hybrid vertical axis wind turbine. In 4th International Conference on Energy, Environment and Sustainable Development (EEDS2016), 2016.

Rassoulinejad-Mousavi SM, Jamil M, Layeghi M. Experimental study of a combined three bucket H-rotor with savonius wind turbine. World Applied Sciences Journal. 2013;28(2):205–211.

Pandey A, Devi R. Study and development of hybrid wind turbine for highway side application. International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering. 2017;6(9):6763–6767.

Bhuyan S, Biswas A. Investigations on self-starting and performance characteristics of simple H and hybrid H-Savonius vertical axis wind rotors. Energy Conversion and Management. 2014;87(87):859–867.

Gupta R, Biswas A, Sharma K. Comparative study of a three-bucket Savonius rotor with a combined three-bucket Savonius-three-bladed Darrieus rotor. Renewable Energy. 2008; 33(9): 1974–1981.

Xiaoting L, Sauchung F, Baoxing O, Chili W, Christopher YC, Kaihong P. A computational study of the effects of the radius ratio and attachment angle on the performance of a Darrieus-Savonius combined wind turbine. Renewable Energy. 2017; 113: 329–334.

Sahim K, Santoso D, Puspitasari D. Investigations on the effect of radius rotor in combined Darrieus-Savonius wind turbine. International Journal of Rotating Machinery. 2018.

Sahim K, Ihtisan K, Santoso D, Sipahutar R. Experimental study of darrieus-savonius water turbine with deflector: Effect of deflector on the performance. International Journal of Rotating Machinery. 2014.

Kaprawi S, Santoso D, Sipahutar R. Performance of combined water turbine Darrieus-Savonius with two stage Savonius Buckets and single deflector. International Journal of Renewable Energy Researh. 2015;5(1):1–5.

Kyozuka Y. An Experimental Study on the Darrieus-Savonius Turbine for the tidal current power generation. Journal of Fluid Science and Technology. 2008; 3(3): 439–449.

Alam MJ, Iqbal MT. A low cut-in speed marine current turbine. Journal of Ocean Technology. 2010;5(4):49–62.

Kumar A, Nikhade A. Hybrid kinetic turbine rotors: A review. International Journal of Engineering Sciences and Advanced Technology. 2014;4(6):453–463.

Gopinath R. Design of a rope brake dynamometer. Middle-East Journal of Scientific Research. 2014; 20(5):650–655.

Gibson G, Liht F. Brakes and Dynamometers 19.1. in Retrieved from http://the-eye.eu/public/WorldTracker.org/Physics/Theory of Machine: 732–773.

Bahaj AS, Molland AF, Chaplin JR, Batten WJM. Power and thrust measurements of marine current turbines under various hydrodynamic flow conditions in a cavitation tunnel and a towing tank. Renewable Energy. 2007; 32(3): 407–426.

Jeong H, Lee S, Kwon SD. Blockage corrections for wind tunnel tests conducted on a Darrieus wind turbine. Journal of Wind Engineering and Industrial Aerodynamics. 2018;179; 229–239.

Nakra BC, Chaudry KK. Instrumentation measurement and analysis. 3rd ed. New Delhi: McGraw Hill; 2009.

Vicente J, Antonio H, Prisco A. A review on the performance of Savonius wind turbines. Renewable and Sustainable Energy Reviews. 2012; 16(5), 3054–3064.