Design and Numerical Investigation of a Small Axial Hydrokinetic Turbine

Bucur, Diana Maria; Grecu, Ionut Stelian; Mitrut, Robert; Dragoi, Constantin; Stroilescu, Adrian-Ion; Dunca, Georgiana

doi:10.1109/ciem52821.2021.9614895

Cited by 4 publications

(4 citation statements)

References 6 publications

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“…In this subchapter are presented details regarding the experimental hydrokinetic turbine and the experimental stand. The hydrokinetic turbine has three blades with profiles chosen from NACA 4400 series, using different relative thickness values, from 4% near the hub to 11% at the tip section, disposed at different angles [9]. The design operating point of the turbine runner was set for 1m/s upstream velocity, 165 rpm runner speed and 7W shaft power.…”

Section: The Experimental Standmentioning

confidence: 99%

Experimental study of the flow induced by an axial hydrokinetic turbine

Dancă

Bunea

Babutanu

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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The renewable energy policy strongly encourages the use of all renewable sources of energy. The authors started to develop a new hydrokinetic turbine to be implemented in small rivers or water channels with a low investment cost. This paper presents velocity map distribution around a hydrokinetic turbine prototype. Experimental measurements were performed using a Particle Image Velocimetry system in a water channel, while the water velocity and turbine rotation speed were variated. Images are presented in the same rotor position and the rotational flow is captured downstream of the blades, at different turbine operating modes. This paper is part of a larger study on developing an innovative axial hydrokinetic turbine. The resulting velocity distribution will be used to validate the numerical model.

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Section: The Experimental Standmentioning

confidence: 99%

Experimental study of the flow induced by an axial hydrokinetic turbine

Dancă

Bunea

Babutanu

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

Self Cite

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“…The design methodology resulted in two different geometries that are considered for the hydrokinetic turbine, HT1 and HT2, presented in detail in [7]. The design was limited by the width of the testing rig and by the manufacturing technology.…”

Section: Main Operating Parameters Of Hydrokinetic Turbinesmentioning

confidence: 99%

“…The characteristics of the two runners of the turbine are presented in table 1. The power coefficients, C P , were determined by numerical simulations [7] and the obtained geometries (figure 1) were manufactured using 3D printing technology. Figures 7a and 7b display the variation of power coefficient, C P , as a function of tip speed ratio, λ, measured for the same water velocities, and the fitted curves computed as second order polynomials.…”

Section: Main Operating Parameters Of Hydrokinetic Turbinesmentioning

confidence: 99%

“…The prototypes differ in terms of hub diameter and designed rotational speed. In [7] was presented the designing methodology and the numerical simulations carried out for both geometries. Presently, the 3D printing methodology used to obtain the two geometries of the prototype is presented, followed by the testing methodology, experimental setup and results.…”

Section: Introductionmentioning

confidence: 99%

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Experimental investigation of small axial hydro-kinetic turbines

Bucur

Dunca

Bunea

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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In the present paper the prototypes of small axial hydro-kinetic turbines are designed, built and tested in laboratory conditions in order to demonstrate their operability. The hydrokinetic turbine prototypes have a 0.2 m tip diameter, three blades and are meant to be used in a free water stream flowing with 1 m/s velocity. Two geometries of the turbine runner are studied in order to determine the best correlation between the water flow velocity and the cross-sectional area of the turbine. The 3D designs of the turbine are used for the prototype printing in order to obtain a lightweight compact assembly of reduced dimensions. The experimental measurements are conducted in a closed-loop laboratory setup, specially designed for hydro-kinetic turbines prototypes testing. The flow velocity, runner speed and shaft torque are measured. The aim of the experimental testing is to determine the characteristic parameters for the tested turbines as power coefficient and mechanical power output.

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