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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/21865
Title: Turbine Test Rig to Investigate Flow Instabilities in Draft Tube
Authors: Kumar, Sandeep
Khullar S.
Cervantes M.J.
Gandhi, Bhupendra K.
Published in: IOP Conference Series: Earth and Environmental Science
30th IAHR Symposium on Hydraulic Machinery and Systems, IAHR 2020
Abstract: 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 m3/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. © Published under licence by IOP Publishing Ltd.
Citation: IOP Conference Series: Earth and Environmental Science (2021), 774(1)
URI: https://doi.org/10.1088/1755-1315/774/1/012111
http://repository.iitr.ac.in/handle/123456789/21865
Issue Date: 2021
Publisher: IOP Publishing Ltd
Keywords: Hydraulic machinery
Hydraulic motors
Design calculations
Discharge conditions
High specific speed
Mitigation methods
Pressure fluctuation
Rotor-stator interactions
Time dependent phenomena
Variable speed generators
Testing
ISSN: 17551307
Author Scopus IDs: 57201873447
57216653256
55328928400
7006087147
Author Affiliations: Kumar, S., Indian Institute of Technology, India Department of Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee, Uttarakhand, Roorkee, 247667, India
Khullar, S., Indian Institute of Technology, India Department of Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee, Uttarakhand, Roorkee, 247667, India
Cervantes, M.J., Lulea University of Technology, Sweden Division of Fluid and Experimental Mechanics, Department of Engineering Sciences and Mathematics, Norrbotten, 97187, Sweden
Gandhi, B.K., Indian Institute of Technology, India Department of Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee, Uttarakhand, Roorkee, 247667, India
Funding Details: The authors ate thankful to financial support by the Central Power Research Institute (CPRI), Government of India, through a National Perspective Plan (NPP) grant. The authors also acknowledge technical support provided by BHEL (our industrial partner in project) along with the model drawings for investigation on the flow instabilities in the draft tube. Central Power Research Institute, CPRI
Appears in Collections:Conference Publications [CS]
Conference Publications [ME]

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