The Savonius-style wind turbine, a class of vertical axis wind turbines, can be a viable option for small scale off-grid electricity generation in the context of renewable energy applications. A better self-starting capability at low wind speeds is one of the major advantages of this turbine. However, as reported in open literature, the power coefficient of the conventional design is found to be inferior as compared to its counterparts. In this regard, a new blade design has been developed. In the present investigation, the aerodynamic performance of this newly designed turbine is assessed under an oriented jet. This is affected by installing deflectors upstream of the turbine blades. The intention of this study is to maximize the utilization of wind energy at the exhaust systems of several practical applications. Experiments are carried out in a low speed wind tunnel at a wind speed of 6.2 m/s. The gradual loads applied to the turbine, and the corresponding rotational speeds are recorded. Power and torque coefficients are calculated at various mechanical loads. Further, all the estimated data are corrected by a suitable correction factor to account for the wind tunnel blockage effects. The results obtained are compared with the experimental data of modified Bach and conventional designs. The results have shown a significant improvement in the performance of newly designed Savonius-style wind turbine under the concentrated and oriented jet.
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ASME 2014 Gas Turbine India Conference
December 15–17, 2014
New Delhi, India
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
978-0-7918-4964-4
PROCEEDINGS PAPER
Aerodynamic Performance Evaluation of a Novel Savonius-Style Wind Turbine Under an Oriented Jet
Sukanta Roy,
Sukanta Roy
Indian Institute of Technology Guwahati, Guwahati, Assam, India
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Prasenjit Mukherjee,
Prasenjit Mukherjee
Indian Institute of Technology Guwahati, Guwahati, Assam, India
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Ujjwal K. Saha
Ujjwal K. Saha
Indian Institute of Technology Guwahati, Guwahati, Assam, India
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Sukanta Roy
Indian Institute of Technology Guwahati, Guwahati, Assam, India
Prasenjit Mukherjee
Indian Institute of Technology Guwahati, Guwahati, Assam, India
Ujjwal K. Saha
Indian Institute of Technology Guwahati, Guwahati, Assam, India
Paper No:
GTINDIA2014-8152, V001T08A001; 7 pages
Published Online:
February 19, 2015
Citation
Roy, S, Mukherjee, P, & Saha, UK. "Aerodynamic Performance Evaluation of a Novel Savonius-Style Wind Turbine Under an Oriented Jet." Proceedings of the ASME 2014 Gas Turbine India Conference. ASME 2014 Gas Turbine India Conference. New Delhi, India. December 15–17, 2014. V001T08A001. ASME. https://doi.org/10.1115/GTINDIA2014-8152
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