TY - GEN
T1 - Multi-year optimal management of quantities and salinities in water supply systems
AU - Housh, Mashor
AU - Ostfeld, Avi
AU - Shamir, Uri
PY - 2011
Y1 - 2011
N2 - A seasonal multi-year model for management of water quantities and salinity in water supply systems has been developed; the Water Supply System (WSS) has sources (aquifers, reservoirs and desalination plants), a conveyance system (distribution network) and consumers (demand zones) who require certain quantities of water under specified salinity constraints. The objective is to operate the system with minimum multi-year total cost under technological, administrative and environmental constraints. The cost and the constraints of each year consist of seasonal desalination, pumping, delivery and an extraction levy from the aquifers. The objective function and some of the constraints in the model are nonlinear, leading to a nonlinear optimization problem which is solved efficiently by adapting a set of manipulations that reduce model size and a compact finite difference scheme for calculating the derivatives required by the optimization algorithm, termed Time-Chained-Method (TCM).
AB - A seasonal multi-year model for management of water quantities and salinity in water supply systems has been developed; the Water Supply System (WSS) has sources (aquifers, reservoirs and desalination plants), a conveyance system (distribution network) and consumers (demand zones) who require certain quantities of water under specified salinity constraints. The objective is to operate the system with minimum multi-year total cost under technological, administrative and environmental constraints. The cost and the constraints of each year consist of seasonal desalination, pumping, delivery and an extraction levy from the aquifers. The objective function and some of the constraints in the model are nonlinear, leading to a nonlinear optimization problem which is solved efficiently by adapting a set of manipulations that reduce model size and a compact finite difference scheme for calculating the derivatives required by the optimization algorithm, termed Time-Chained-Method (TCM).
KW - Optimization
KW - Salinity
KW - Water quality
KW - Water supply
UR - http://www.scopus.com/inward/record.url?scp=79960423194&partnerID=8YFLogxK
U2 - 10.1061/41173(414)443
DO - 10.1061/41173(414)443
M3 - Conference contribution
AN - SCOPUS:79960423194
SN - 9780784411735
T3 - World Environmental and Water Resources Congress 2011: Bearing Knowledge for Sustainability - Proceedings of the 2011 World Environmental and Water Resources Congress
SP - 4267
EP - 4277
BT - World Environmental and Water Resources Congress 2011
T2 - World Environmental and Water Resources Congress 2011: Bearing Knowledge for Sustainability
Y2 - 22 May 2011 through 26 May 2011
ER -
