Chapter
Apr 26, 2012
Evolutionary Optimization of Combined Sewer Overflow Control
Authors: Andrea Zimmer, David Hill, Barbara Minsker, Avi Ostfeld, and Arthur SchmidtAuthor Affiliations
Publication: World Environmental and Water Resources Congress 2009: Great Rivers
Abstract
Model predictive control (MPC) is coupled with a real-coded Genetic Algorithm to predict a decision sequence that minimizes combined sewer overflow (CSO) volume for a 3-hour rainfall event over a hypothetical sewer system. Rainfall is transformed to overland runoff through the cell model which depicts each sewershed (draining to an overflow dropshaft) by two linear reservoirs in series, and water entering the interceptor is routed downstream to establish water levels at the dropshaft connections. A pumping rate at the most downstream end of the interceptor plus one sluice gate position for each dropshaft connection will be altered to produce the best control strategy. Resulting management scenarios disperse overflows differently throughout the sewer, but may yield similar overflow volumes. This paper describes the simulation approach taken and displays the overflow distribution for favorable control sequences.
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Copyright
© 2009 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
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ASCE Technical Topics:
- Algorithms
- Climates
- Combined sewers
- Coupling
- Engineering fundamentals
- Environmental engineering
- Flow (fluid dynamics)
- Fluid dynamics
- Fluid mechanics
- Hydrologic engineering
- Infrastructure
- Lifeline systems
- Mathematics
- Meteorology
- Models (by type)
- Optimization models
- Overflow
- Precipitation
- Rain water
- Rainfall
- Sewers
- Structural engineering
- Structural members
- Structural systems
- Water (by type)
- Water and water resources
- Water management
Authors
Affiliations
Andrea Zimmer
Civil and Environmental Engineering, University of Illinois at Urbana-Champaign
David Hill
National Center for Supercomputing Applications, University of Illinois at Urbana-Champaign
Barbara Minsker
Civil and Environmental Engineering, University of Illinois at Urbana-Champaign
Avi Ostfeld
Civil and Environmental Engineering, Technion — Israel Institute of Technology
Arthur Schmidt
Civil and Environmental Engineering, University of Illinois at Urbana-Champaign
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