RETRACTED: Repeatability in measurements and control settings of a small francis turbine test rig
2022 (English) In: Flow Measurement and Instrumentation, ISSN 0955-5986, E-ISSN 1873-6998, Vol. 88, article id 102260Article in journal (Refereed) Published
Abstract [en]
A reduced scaled-down hydraulic turbine test setup has been designed. The test setup is made to investigate the mitigation of pressure pulsations like the rotating vortex rope (RVR) and its formation and problems related to prototype operation. The setup arrangements and instrumentations follow mostly the international electro-technical commission (IEC) standards. This paper presents the runner hub modification, calibration procedure, repeatability and systematic uncertainty estimation, and measurement methods as per the guidelines given in IEC 60193 and IEC 60041. The calibration and regression curves of all devices are presented. A LABVIEW program for open-loop operation at a constant head and closed-loop operation at constant discharge is also presented. Finally, the systematic and random uncertainty of hydraulic efficiency is discussed.
Place, publisher, year, edition, pages Elsevier , 2022. Vol. 88, article id 102260
Keywords [en]
Francis turbine, Systematic and random uncertainty, Repeatability, Control system, Calibration
National Category
Fluid Mechanics
Research subject Fluid Mechanics
Identifiers URN: urn:nbn:se:ltu:diva-95277 DOI: 10.1016/j.flowmeasinst.2022.102260 ISI: 000895570000001 Scopus ID: 2-s2.0-85141279092 OAI: oai:DiVA.org:ltu-95277 DiVA, id: diva2:1727945
Note Godkänd;2023;Nivå 0;2023-01-17 (joosat);
Retraction statement: Kumar, S., Gandhi, B.K. Cervantes, M.J., Retraction notice to “Repeatability in measurements and control settings of a small Francis turbine test rig” [Flow Meas. Instrum. 88 (2022) 102260], Flow Measurement and Instrumentation , 2023, 102401, https://doi.org/10.1016/j.flowmeasinst.2023.102401;
Funder: Central Power Research Institute (CPRI), India
2023-01-172023-01-172025-02-09 Bibliographically approved