Parameters Analysis of Vortex Formation on Conical Basin of Gravitational Water Vortex Power Plant (GWVPP)

Erna Septyaningrum, Ridho Hantoro, Sarwono, Ester Carolina*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

Gravitational water vortex power plant (GWVPP) is known as a low energy conversion system that can be used in low-head river flows approximately 0.8–2 m. Due to the low-head utilization, the GWVPP does not work in the pressure differences principle, however utilizes eddies, which are called vortexes, to generate mechanical power. Turbine performance is influenced by vortex flow performance, indicated by the value of vortex heigh, tangential velocity, and vortex strength. In addition, the influence of geometric parameters such as outlet to inlet diameter and basin dimension enlargement also affects the tangential velocity and vortex strength. The numerical simulation study was conducted to analyze the influence of basin geometry on vortex formation. The variation of the inlet to outlet diameter and basin enlargement of the conical basin is employed to get the depth information about the geometry effect. In this study, an analysis of a conical basin having an outlet to inlet diameter ratio of 0.2 and 0.3 was carried out. In addition, 1X, 1.1X, and 1.2X enlargement were also carried out. The difference has a significant impact on the vortex height, the smaller the higher the vortex height formed. The vortex formation is also influences by the basin size of basin enlargement; the vortex height gets lower along with the increase of basin size. From the analysis, it was found that the maximum tangential velocity and vortex strength occurred at 0.3 and the enlargement was 1.2X.

Original languageEnglish
Title of host publicationRecent Advances in Renewable Energy Systems - Select Proceedings of ICOME 2021
EditorsMohan Kolhe, Aziz Muhammad, Abdel El Kharbachi, Tri Yogi Yuwono
PublisherSpringer Science and Business Media Deutschland GmbH
Pages69-78
Number of pages10
ISBN (Print)9789811915802
DOIs
Publication statusPublished - 2022
Event5th International Conference on Mechanical Engineering, ICOME 2021 - Virtual, Online
Duration: 25 Aug 202126 Aug 2021

Publication series

NameLecture Notes in Electrical Engineering
Volume876
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Conference

Conference5th International Conference on Mechanical Engineering, ICOME 2021
CityVirtual, Online
Period25/08/2126/08/21

Keywords

  • Conical basin
  • Diameter ratio
  • Enlargement
  • Tangential velocity
  • Vortex height
  • Vortex strength

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