Calibration of Nodal Demand in Water Distribution Systems
Publication: Journal of Water Resources Planning and Management
Volume 137, Issue 1
Abstract
This paper presents an optimization methodology to calibrate the nodal demand in the model of water supply distribution systems. The matrix analysis has been carried out to get the sensitive coefficients matrix for the model of water distribution systems. Singular value decomposition is applied to calculate search director of optimization by solving the sensitive coefficients matrix, which is more efficient than the finite-difference method. Two cases are used to show the performance of this algorithm. The first case is a hypothetical water distribution network showing the calculation of the optimization vector. The second case is the application of real-life water distribution system in Hangzhou, China, which shows the determination of the cutoff singular value and the search step size in one-dimensional search. The calibrated model has been also validated using the measured data. The results have shown that the proposed algorithm is reliable and effective in real-time system.
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Information
Published In
Journal of Water Resources Planning and Management
Volume 137 • Issue 1 • January 2011
Pages: 31 - 40
Copyright
© 2011 ASCE.
History
Received: Jun 22, 2009
Accepted: Apr 21, 2010
Published online: May 4, 2010
Published in print: Jan 2011
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