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Turbine Test Rig to Investigate Flow Instabilities in Draft Tube
Indian Institute of Technology, Roorkee, India Department of Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee, Uttarakhand 247667 .
Indian Institute of Technology, Roorkee, India Department of Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee, Uttarakhand 247667 .
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Fluid and Experimental Mechanics.ORCID iD: 0000-0001-7599-0895
Indian Institute of Technology, Roorkee, India Department of Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee, Uttarakhand 247667 .
2021 (English)In: IOP Conference Series: Earth and Environmental Science: 30th IAHR Symposium on Hydraulic Machinery and Systems (IAHR 2020), Institute of Physics (IOP), 2021, Vol. 774Conference paper, Published paper (Refereed)
Abstract [en]

Time-dependent phenomena in a reaction turbine such as rotor-stator interactions (RSI) and rotating vortex rope (RVR) contribute to pressure fluctuations, vibrations, and even failure of the machine. A small scale test rig is being developed to investigate RSI and RVR and to study RVR mitigation methods. The test rig is designed for a maximum available head and discharge of 8 meters and 0.05 m(3)/s, respectively. Provisions are made to operate the test rig in open and closed loops. The test rig is flexible to operate for the turbines of high specific speed (high head Kaplan turbine or very low head Francis) to low specific speed (high head Francis). The runner of the test rig is 200 mm in diameter at draft tube inlet. The turbine is connected with a variable speed generator to run up to 1000 rpm. This paper presents the design and arrangements of the test rig components according to the head and discharge conditions. Scale down design calculations for a model are performed using IEC 60193.

Place, publisher, year, edition, pages
Institute of Physics (IOP), 2021. Vol. 774
Series
IOP Conference Series-Earth and Environmental Science, ISSN 1755-1307
National Category
Fluid Mechanics
Research subject
Fluid Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-87991DOI: 10.1088/1755-1315/774/1/012111ISI: 000712043400111Scopus ID: 2-s2.0-85108596478OAI: oai:DiVA.org:ltu-87991DiVA, id: diva2:1613646
Conference
 30th IAHR Symposium on Hydraulic Machinery and Systems (IAHR 2020) 21-26 March 2021, Lausanne, Switzerland
Available from: 2021-11-23 Created: 2021-11-23 Last updated: 2025-02-09Bibliographically approved

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Cervantes, Michel

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