Experimental study on performance assessment of Savonius rotor type wave energy converter in an experimental wave flume

Tutar, Mustafa; Veci, Inaki

doi:10.1049/iet-rpg.2015.0335

Cited by 3 publications

(3 citation statements)

References 17 publications

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“…However, the incremental rise in rotation speed falls significantly short of compensating for the considerable loss in torque generation. It illustrates that the effect of blade numbers operating under IPLS has a similar trend, as found in the study of Tutar [31]. H= 0.18m).…”

Section: Blade Numbersupporting

confidence: 80%

“…The blade curvature was optimized to 70° by Ahmed [30] through experimental tests using particle image velocimetry (PIV). Also, Tutar [31] executed an experimental examination within a wave flume, explicitly investigating the optimal blade numbers. The findings highlighted that augmenting the blade count resulted in a notable enhancement of the productive torque output.…”

Section: Nomenclaturementioning

confidence: 99%

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Investigations on the wave performance of Savonius turbine operating under initial phase-locked strategy

Li,

Yao,

Eskilsson

et al. 2023

Physics of Fluids

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Savonius hydrokinetic turbines (SHTs), categorized as emerging cyclic-type wave energy converters (WECs), have demonstrated notable potential in achieving elevated energy conversion efficiency and consistent power output. This performance is particularly observed when operating under the initial phase-locked strategy (IPLS), marking a significant advancement in the realm of wave energy harvesting. However, a thorough exploration of the influences stemming from wave conditions and turbine design remains an area that warrants further investigation for advancing the performance of SHT-WECs under the proper operational strategy. This study undertakes an exhaustive analysis of geometric parameters, encompassing turbine diameter, blade number, and thickness. An experiment-validated numerical model based on the unsteady two-phase Reynolds-averaged Navier–Stokes equations is adopted in the research. Comprehensive investigations include analyses of flow fields around the turbine, pressure distributions on blade surfaces, and dynamic torque variations. These analyses serve to elucidate the variation rules of hydrodynamic characteristics and their influential mechanisms. The results highlight the notable impact of the proposed “relative-short wavelength impact” on the performance of SHT-WECs operating under IPLS conditions. Notably, no significant impact is observed when the relative wavelength exceeds 17. Optimal performance is achieved with the thinnest and two-bladed turbine configuration. Moreover, optimizing the turbine diameter significantly enhances SHT-WEC conversion efficiency, with the attained maximum value reaching approximately 18.6%. This study offers a concise guideline for designing turbine diameters in alignment with specific wave conditions.

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Section: Blade Numbersupporting

confidence: 80%

Section: Nomenclaturementioning

confidence: 99%

Investigations on the wave performance of Savonius turbine operating under initial phase-locked strategy

Li,

Yao,

Eskilsson

et al. 2023

Physics of Fluids

View full text Add to dashboard Cite

show abstract

“…There are many energy scavenging sources, such as sunlight [3], heat [4], wind [5][6][7], water [7][8][9], vibration [10][11][12][13], acoustic energy [14] and human motion [15], from which the required energy can be generated. As the ambient water motion contains a gigantic reserve of renewable mechanical energy [16] in the form of river flows [17], ocean tides [18] and waves [16,19], and even water drops [20], it is a potential energy source for energy harvesting.…”

Section: Introductionmentioning

confidence: 99%

Asymmetric arc‐shaped vortex‐induced electromagnetic generator for harvesting energy from low‐velocity flowing water

Lin

Zhao

et al. 2017

IET Renewable Power Generation

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In this study, a novel small-scale electromagnetic energy harvester is designed and optimised, which aims at addressing the limitations of existing approaches in output power scavenged from low-velocity flowing water. Instead of conventional cantilever beams, an asymmetric arc-shaped elastic beam is implemented to disrupt flow, leading to its oscillation in the induced unsteady flow field. An electromagnetic transducer is utilised to convert kinetic energy into electrical energy. Furthermore, the effects of the structure asymmetry and curvature on the electrical outputs are investigated to optimise the scavenging energy capability. A prototype with the volume of 152.4 cm 3 is fabricated and tested. A maximum open-circuit voltage of 1440 mV is obtained at 0.409 m/s, and the harvester generates an output power of 0.503 mW when it is connected to an external load of 110 Ω. The small-scale harvester shows great potential for applying in wireless sensor networks.

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A Performance Study of a Horizontal-axis Micro-turbine in a Numerical Wave Flume

Tutar

Mendi

2017

Energy Procedia

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Experimental study on performance assessment of Savonius rotor type wave energy converter in an experimental wave flume

Cited by 3 publications

References 17 publications

Investigations on the wave performance of Savonius turbine operating under initial phase-locked strategy

Investigations on the wave performance of Savonius turbine operating under initial phase-locked strategy

Asymmetric arc‐shaped vortex‐induced electromagnetic generator for harvesting energy from low‐velocity flowing water

A Performance Study of a Horizontal-axis Micro-turbine in a Numerical Wave Flume

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