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Conference date: August 19, 2012 - August 23, 2012
Conference location: Beijing, China
Conference code: 95632
Publisher: Institute of Physics Publishing, Temple Circus, Temple Way, Bristol, BS1 6BE, United
Kingdom
Abstract: The complete characteristic curve of the pump turbine show "s" characteristic in the
anti-pump and pump working-condition. The multi-numerical values of unit discharge and unit
moment the curve caused by crossover and overlap phenomena of the curve may bring
inconvenience for transition process analysis. In this paper, complete characteristic curves of the
pump turbine were dealt with using improved Suter curve transformation method. A surface
fitting were carried out for transformed WH curve. Therefore, a three-dimensioned surface was
achieved. The transition process of load shedding was analyzed using the curve above-mentioned.
The results show that the method used in the paper can eliminates the uneven distribution,
crossover, overlapping and multi-value characteristic, thus providing convenience for the
transition process analysis of pump-turbine. © Published under licence by IOP Publishing Ltd.
Number of references: 6
Main heading: Hydraulic turbines
Controlled terms: Hydraulic machinery - Pumped storage power plants
Uncontrolled terms: Characteristic curve - Load-shedding - Multi-value Pump-turbines - Surface fitting - Transformation methods - Transition process Unit discharge
Classification code: 402.1 Industrial and Agricultural Buildings - 617.1 Hydraulic Turbines 632.2 Hydraulic Equipment and Machinery
DOI: 10.1088/1755-1315/15/6/062015
Database: Compendex
Compilation and indexing terms, © 2013 Elsevier Inc.
22.
Accession number: 20130916053493
Title: Study of capillary experiments and hydrologic factors under subsurface drip irrigation
with fractal theory
Authors: Zhou, W.1, 2 ; Cao, L.2/;
Author affiliation: 1 Xi'An University of Technology, Xi'an 710054, China
2 North China University of Water Resources and Electric Power, Henan Zhengzhou 450011,
China
Corresponding author: Zhou, W. ([email protected])
Source title: IOP Conference Series: Earth and Environmental Science
Abbreviated source title: IOP Conf. Ser. Earth Environ. Sci.
Volume: 15
Issue: PART 7
Monograph title: 26th IAHR Symposium on Hydraulic Machinery and Systems - Session 5:
Application in Industries and in Special Conditions
Issue date: 2012
Publication year: 2012
Article number: 072031