Preliminary experimental study on multi-stage gravitational water vortex turbine in a conical basin

Ullah, Rizwan; Cheema, Taqi Ahmad; Saleem, Abdul Samad; Ahmad, S.M.; Chattha, J. A.; Park, Cheol Woo

doi:10.1016/j.renene.2019.07.128

Cited by 37 publications

(28 citation statements)

References 14 publications

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“…It can be seen from Figure 9 that in every different T/D, the momentum conversion on the blade is quite significantly different. Study of Ullah et al, [17] shows that the best T/D condition is at condition c in his study which can be seen in Figure 11. In condition c, all of the output parameters are at the highest which can be said that it produced the highest efficiency as well [17].…”

Section: Discussionmentioning

confidence: 56%

“…Study of Ullah et al, [17] shows that the best T/D condition is at condition c in his study which can be seen in Figure 11. In condition c, all of the output parameters are at the highest which can be said that it produced the highest efficiency as well [17]. However, the difference between Ullah's study and this study is significantly can be looked at Figure 8.…”

Section: Discussionmentioning

confidence: 56%

“…This study also shows that the curved blade was worse than the inverted straight conical blade [8]. Ullah et al, [17] researched about the effect of multi-stage gravitational water vortex turbine in a conical basin. In his study, it showed the output parameters of shaft power (W), torque (N.m), and rotational speed (rpm) of single stage water vortex turbine with difference height condition which called T/D in my study.…”

Section: Introductionmentioning

confidence: 79%

“…In his study, he used four conditions of T/D; a third of the blade in contact with the vortex, two over three of the blades in contact with the vortex, all the blade in contact with the vortex, and lastly the blade is a third submerged from the vortex surface. His study shows that the best output parameters occurred in the condition where all the blade in contact with the vortex which the blade surface is at the same height of the vortex surface [17].…”

Section: Introductionmentioning

confidence: 99%

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Analysing Hydraulic Efficiency of Water Vortex Pico-Hydro Turbine using Numerical Method

Irwansyah

Warjito

Budiarso

et al. 2020

ARFMTS

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To overcome the lack of rural electricity in Indonesia vortex pico-hydro turbines are used as an option solution. This is due to the ability of the vortex turbine to work in low head conditions effectively. This study is conducted with comparison of curved and straight blade to obtain a more optimum turbine performance. Two methods are carried out in this study, analytical and computational method. Analytical methods are used to determine blade geometry and its performance while computational methods are used to analyse internal flow of turbine. As a result, the study concludes that hydraulic efficiency of vortex turbine in this study doesn’t affect much between straight and curved blades. The hydraulic efficiency for those blades is around 0.63. In addition, the study continued by analysing the optimum location of the blade in the basin. The results of the study show that the optimum ratio of depth and diameter of the blade is 0.33 with turbine efficiency is 0.84. Thus, the location of the blades is more important than the type of blades.

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Section: Discussionmentioning

confidence: 56%

Section: Discussionmentioning

confidence: 56%

Section: Introductionmentioning

confidence: 79%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Analysing Hydraulic Efficiency of Water Vortex Pico-Hydro Turbine using Numerical Method

Irwansyah

Warjito

Budiarso

et al. 2020

ARFMTS

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“…In the basin, a gravitational vortex is generated and the kinetic energy of water is extracted by a vertical-axis turbine in the centre of the vortex, with rotates coaxially with it to harness the kinetic energy. The system can be installed in a serial or parallel configuration along the river to increase power production [10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Numerical analysis of the inlet channel and basin geometries for vortex generation in a gravitational water vortex power plant

García¹,

Rubio-Clemente²,

Chica³

2024

RE&PQJ

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Recently, the utilization of low-head hydroelectric technologies has received a great attention for the expansion of distributed power systems into isolated regions that are difficult to be connected to the electrical grid, especially in developing countries. The use of gravitational vortex hydropower systems can be a renewable and suitable option to expand electricity access and promote development in these remote regions, which are concomitantly rich in hydric resources, due to this system can operate with low head without the need of a large reservoir and installation area. In this study, the performance of the inlet channel and basin of a gravitational water vortex turbine was investigated. Two inlet channels and two basin geometries were numerically analysed in Ansys Fluent software. The velocity and vortex height were calculated and compared for each setting. It was found that the inlet channel with conical basin tended to produce more symmetric vortex in comparisons with that generated by the cylindrical geometry. Additionally, the conical basin maximized the flow velocity on the water surface area.

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Numerical analysis of the effect of runner-to-basin diameter ratio on the performance of gravitational water vortex turbine in a scroll basin

Ancha

2022

Int J Energy Environ Eng

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Preliminary experimental study on multi-stage gravitational water vortex turbine in a conical basin

Cited by 37 publications

References 14 publications

Analysing Hydraulic Efficiency of Water Vortex Pico-Hydro Turbine using Numerical Method

Analysing Hydraulic Efficiency of Water Vortex Pico-Hydro Turbine using Numerical Method

Numerical analysis of the inlet channel and basin geometries for vortex generation in a gravitational water vortex power plant

Numerical analysis of the effect of runner-to-basin diameter ratio on the performance of gravitational water vortex turbine in a scroll basin

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