Runner optimal position in a gravitational water vortex hydraulic turbine with spiral inlet channel and a conical basin

García, L. Velásquez; Rubio-Clemente, A.; Chica, E.

doi:10.24084/repqj20.248

Cited by 2 publications

(3 citation statements)

References 21 publications

(24 reference statements)

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“…where h v is the vortex height and V in is the velocity in the inlet passage. Velásquez García et al [112] used the height difference between the bottom of the inlet passage and the middle of the blades as H g . By analysing the velocity triangles at the inlet and outlet of the blade and the relative stream velocity and angle, Haghighi et al [39] obtained a quite complicated equation to calculate H g which is not detailed here.…”

Section: Quantitative Analysis Of the Performance Of Gwvht Systemsmentioning

confidence: 99%

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A Review of Gravitational Water Vortex Hydro Turbine Systems for Hydropower Generation

2023

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Hydropower is one of the most sustainable and desirable renewable energy sources. Gravitational water vortex hydro turbine (GWVHT) systems are one of the most suitable and sustainable renewable power generation devices for remote and rural areas, particularly in developing countries, owing to their small scales and low costs. There are various GWVHT systems with different configurations and various operating conditions. The main components of a GWVHT system include the inlet and outlet channels, a basin, and a turbine on which there are a number of blades attached. This paper presents a comprehensive review regarding the progress and development of various GWVHT systems, covering broad aspects of GWVHT systems, particularly various types of basins, inlet and outlet channels, turbines with blades which have different shapes, orientations, sizes, numbers, etc. The nature of the previous studies is summarised. The fundamentals of the vortex dynamics involved and the quantitative analysis of the performance of GWVHT systems are also described. The turbulence models and multiphase models used in some leading numerical simulation studies have been reviewed. As a case study, the implementation of a GWVHT system in PNG is presented. Based on the review of previous studies regarding GWVHT systems, the major issues and challenges are summarised, and some key topics are recommended for future research work on the performance of GWVHT systems.

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Section: Quantitative Analysis Of the Performance Of Gwvht Systemsmentioning

confidence: 99%

“…Velásquez García et al [112] numerically studied the optimal position of the turbine in a GWVHT system with a spiral inlet channel and a conical basin. There were four curved blades in the turbine, and the numerical simulations were performed by changing their positions in the basin.…”

Section: Parametric Studies On Turbines (Blades)mentioning

confidence: 99%

A Review of Gravitational Water Vortex Hydro Turbine Systems for Hydropower Generation

2023

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“…Darmono and Pranoto [42] investigated the numerical analysis of the effect of the number of threads on the turbine blades by the computational fluid dynamics method and ANSYS FLUENT software. Velásquez et al [43] used a gravitational vortex hydraulic turbine (GWVHT) to determine the optimal position (h) of the slide to increase the efficiency of the hydroelectric plant using computational fluid dynamics (CFD). This hydroelectric technology is low head and has a vertical channel to extract energy from water vortices.…”

Section: Introductionmentioning

confidence: 99%

Generation of Electricity From a Hydraulic Turbine in the Djonou River (Benin)

ADJASSA,

KOTO N'GOBI,

DONNOU

et al. 2023

J. Nig. Soc. Phys. Sci.

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The shortage of electricity in rural areas despite the hydraulic potential they possess is becoming a challenge for Benin. To date, nearly 140,000 people spread over the 42 lakeside villages of this country live in energy inaccessibility, insecurity and poverty. To overcome this situation, the present study is therefore interested in the production of electrical energy on an experimental basis in low water periods thanks to an Archimedean screw turbine which operates at low flow rates and height of fall on the river. Djonou located in southern Benin a few kilometers from the University of Abomey-Calavi. The geometrical and hydraulic parameters of the screw were therefore determined and the device was modeled using Autocard software. A prototype was then made with local recycled materials and tested on the river. The screw specifications indicate an inside and outside radius of 0.072 m and 0.135 m. The length of the screw was set at 0.46 m for a blade radius estimated at 0.137 m. The number of screw blades is equal to 2 with a flow rate of 0.049 $ m^{3}/s $. The inclination angle of the screw is $25^{\circ}$. The device on the experimental site produces a voltage of 16 V and provides a current of about 0.12 A which can power a 2 W lamp. This performance of the prototype made on a small scale is a reliable indicator of the optimal use of this technology in the national hydraulic network of Benin to supply populations with electrical energy.

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Runner optimal position in a gravitational water vortex hydraulic turbine with spiral inlet channel and a conical basin

Cited by 2 publications

References 21 publications

A Review of Gravitational Water Vortex Hydro Turbine Systems for Hydropower Generation

A Review of Gravitational Water Vortex Hydro Turbine Systems for Hydropower Generation

Generation of Electricity From a Hydraulic Turbine in the Djonou River (Benin)

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