TY - JOUR
T1 - Optimal operation efficiency and control of water pumps in multiple water reservoir system
T2 - Case study in Korea
AU - Kim, Mincheol
AU - Choi, Taeho
AU - Kim, Minhwa
AU - Han, Sungsoo
AU - Koo, Jayong
N1 - Publisher Copyright:
© 2015 IWA Publishing.
PY - 2015
Y1 - 2015
N2 - Pumping regimes for water distribution systems have been established to reduce pump operation costs. Optimization of water reservoir networks has been studied extensively for operating pumps efficiently. According to research, optimization reduces pump operation costs by approximately 10- 20%. However, comparing economic benefits per country would be too complex because the effects of optimization differ depending on the power cost estimation system of each country and the existing operations. This study presents an optimization algorithm to minimize the operating costs of an entire system via the application of dynamic programming. Case studies were conducted to apply the algorithm to real values in four scenarios. By setting cost minimization as an objective, an optimum water pump operation plan was derived that encompasses operating conditions, variations in water demand, and energy costs. Results showed that operating a standby pump in an existing system can increase the system's efficiency. In addition, even if hourly water consumption remains constant, each case requires its own operating method, because each case has different operational costs. By considering various conditions such as those mentioned in this study, future pump operation schedules can be optimized and stabilized to maintain economic water supply.
AB - Pumping regimes for water distribution systems have been established to reduce pump operation costs. Optimization of water reservoir networks has been studied extensively for operating pumps efficiently. According to research, optimization reduces pump operation costs by approximately 10- 20%. However, comparing economic benefits per country would be too complex because the effects of optimization differ depending on the power cost estimation system of each country and the existing operations. This study presents an optimization algorithm to minimize the operating costs of an entire system via the application of dynamic programming. Case studies were conducted to apply the algorithm to real values in four scenarios. By setting cost minimization as an objective, an optimum water pump operation plan was derived that encompasses operating conditions, variations in water demand, and energy costs. Results showed that operating a standby pump in an existing system can increase the system's efficiency. In addition, even if hourly water consumption remains constant, each case requires its own operating method, because each case has different operational costs. By considering various conditions such as those mentioned in this study, future pump operation schedules can be optimized and stabilized to maintain economic water supply.
KW - Dynamic programming
KW - Infrastructure maintenance efficiency
KW - Optimal pump operation schedule
KW - Seasonal electricity surcharge charge
UR - http://www.scopus.com/inward/record.url?scp=84924571705&partnerID=8YFLogxK
U2 - 10.2166/ws.2014.079
DO - 10.2166/ws.2014.079
M3 - Article
AN - SCOPUS:84924571705
SN - 1606-9749
VL - 15
SP - 59
EP - 65
JO - Water Science and Technology: Water Supply
JF - Water Science and Technology: Water Supply
IS - 1
ER -