Optimal operation of water distribution systems for water quality purposes

Ayse Burcu Sakarya, Larry Mays

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

A new methodology has been developed for determining the optimal operation of water distribution systems for water quality purposes. The methodology is based upon describing the operation as a discrete time optimal control problem that can be used to determine the optimal operation schedules of the pumps in distribution systems. The solution methodology is based upon a mathematical programming approach resulting in a large scale nonlinear programming problem which can not be solved by using existing nonlinear codes. The solution of the optimization problem is obtained by interfacing a simulation code, EPANET, which solves the hydraulic and water quality constraints with a nonlinear optimization code, GRG2. Bound constraints on the state variables are incorporated into the objective function using the augmented Lagrangian and the bracket penalty methods. Three objective functions can be used in the model: (1) the minimization of the deviations of actual substance concentrations from the desired concentration values, (2) the minimization of the total pump duration times, and (3) the minimization of the total energy cost. The effectiveness of methodology has been tested using both hypothetical and existing water distribution systems.

Original languageEnglish (US)
Title of host publicationWRPMD 1999
Subtitle of host publicationPreparing for the 21st Century
PublisherAmerican Society of Civil Engineers (ASCE)
ISBN (Print)0784404305, 9780784404300
DOIs
StatePublished - Jan 1 1999
Event29th Annual Water Resources Planning and Management Conference, WRPMD 1999 - Tempe, AZ, United States
Duration: Jun 6 1999Jun 9 1999

Publication series

NameWRPMD 1999: Preparing for the 21st Century

Other

Other29th Annual Water Resources Planning and Management Conference, WRPMD 1999
CountryUnited States
CityTempe, AZ
Period6/6/996/9/99

ASJC Scopus subject areas

  • Computer Networks and Communications

Fingerprint Dive into the research topics of 'Optimal operation of water distribution systems for water quality purposes'. Together they form a unique fingerprint.

Cite this