Proceedings ArticleDOI
Numerical and analytical study on telescopic savonius turbine blade
Palanisamy Mohan Kumar,Srinivas Rao Purimitla,Shitole Shubhra,Narasimalu Srikanth +3 more
- pp 107-112
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TLDR
In this article, the authors explored the idea of telescopic Savonius wind turbine with emphasis on the flow characteristics and associated drag on the buckets due to its geometric difference, and a three-dimensional numerical study has been carried out by Star CCM+ to predict the drag coefficient variation in relation to the rotor angles.Abstract:
Savonius wind turbines holds a vital place in small wind turbine arena, for its unique features such as simplicity, omni directionality and low maintenance, despite its lower efficiency than its counterparts. Several experimental and numerical studies focused on improving the efficiency and optimization of geometrical parameters, yet a reliable technique to reduce the thrust load at high wind is still lacking. The current study explores the novel idea of telescopic Savonius wind turbine with emphasis on the flow characteristics and associated drag on the buckets due to its geometric difference. A three-dimensional numerical study has been carried out by Star CCM+ to predict the drag coefficient variation in relation to the rotor angles. An analytical model is developed in conjunction to compute the overall performance of the turbine.read more
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Journal ArticleDOI
Strategies for Enhancing the Low Wind Speed Performance of H-Darrieus Wind Turbine—Part 1
TL;DR: In this article, a comprehensive review of proposed concepts with the focus set on the low wind speed performance and critically assessing their applicability based on economics, reliability, complexity, and commercialization aspects is presented.
Journal ArticleDOI
Review on the Evolution of Darrieus Vertical Axis Wind Turbine: Large Wind Turbines
TL;DR: In this article, a review of the development of a large vertical axis wind turbine (VAWT) since its naissance to its current applications is presented, where the turbines are critically reviewed in terms of performance, blade configuration, tower design, and mode of failure.
Journal Article
Computational Optimization of Adaptive Hybrid Darrieus Turbine: Part 1
Palanisamy Mohan Kumar,M. Mohan Ram Surya,Krishnamoorthi Sivalingam,Teik-Cheng Lim,Seeram Ramakrishna,He Wei +5 more
TL;DR: In this paper, a 2D numerical study employing Reynold-Averaged Navier Stokes (RANS) was carried out to investigate the impact of the Darrieus rotor diameter (DR) on the Savonius rotor (DT) with regard to hybrid turbine performance.
References
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Journal ArticleDOI
Social, economical and environmental impacts of renewable energy systems
TL;DR: In this article, the social, economical and environmental effects of renewable energy system have been discussed in the remote areas of the world, and the results show that the trends of total emission reduction in different years, which is exponentially increasing after the installation of renewable energies system in remote areas.
Journal ArticleDOI
Optimum design configuration of Savonius rotor through wind tunnel experiments
TL;DR: In this article, wind tunnel tests were conducted to assess the aerodynamic performance of single-, two-and three-stage Savonius rotor systems with both semicircular and twisted blades.
Journal ArticleDOI
Optimal blade shape of a modified Savonius turbine using an obstacle shielding the returning blade
TL;DR: In this article, the geometry of the blade shape (skeleton line) was optimized in the presence of the obstacle plate to increase the output power of a Savonius turbine.
Journal ArticleDOI
On the performance analysis of Savonius rotor with twisted blades
Ujjwal K. Saha,M. Jaya Rajkumar +1 more
TL;DR: In this paper, a three-bladed rotor system has been tested in a low speed wind tunnel, and its performance has been compared with conventional semicircular blades (with twist angle of 0°) on the basis of starting characteristics, static torque and rotational speed.
Journal ArticleDOI
An experimental study on improvement of savonius rotor performance
TL;DR: In this paper, different geometries of Savonius wind turbine are experimentally studied in order to determine the most effective operation parameters, it was found that, the two blades rotor is more efficient than three and four ones.