Abstract
In this study, Subsystem-Based Pressure Dependent Demand (SPDD) analysis is implemented using the concept of effective supply to eliminate the uncertainties caused by the Head-Outflow Relationship (HOR) in Pressure Dependant Demand (PDD) analysis. This study optimizes the nodal water demands to satisfy the nodal pressure requirement under the abnormal condition defined as the part of the water distribution systems that is closed due to maintenance, rehabilitation, or accidents. The total water supply is optimized and defined as the effective supply, which is the maximum water supply while maintaining the nodal pressure requirements (25 psi) to guarantee the customer's convenience. A meta-heuristic algorithm, the Harmony Search (HS) algorithm, is applied to optimize the system. To decrease the effect of the HOR uncertainties, an optimization method is proposed in this study using the EPANET model that is widely used for the hydraulic simulation. To evaluate the applicability of the suggested model, Supply Index (SI), Pressure Index (PI), Effective Supply Index (ESI), and Subsystem Importance Index (SII) are also defined and calculated from a real-sized network. This paper firstly tried to perform pressure dependent demand analysis for subsystem without the HOR equation that has been an important issue in water distribution system analysis. The developing method could be a good alternative for the design and maintenance of water distribution systems.
| Original language | English |
|---|---|
| Pages (from-to) | 457-464 |
| Number of pages | 8 |
| Journal | KSCE Journal of Civil Engineering |
| Volume | 16 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2012 Mar 1 |
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Keywords
- effective supply
- harmony search
- pressure dependent demand analysis
- subsystem
- water distribution systems
ASJC Scopus subject areas
- Civil and Structural Engineering
Cite this
Subsystem-based pressure dependent demand analysis in water distribution systems using effective supply. / Yoo, Do Guen; Suh, Min Yeol; Kim, Joong Hoon; Jun, Hwandon; Chung, Gunhui.
In: KSCE Journal of Civil Engineering, Vol. 16, No. 3, 01.03.2012, p. 457-464.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Subsystem-based pressure dependent demand analysis in water distribution systems using effective supply
AU - Yoo, Do Guen
AU - Suh, Min Yeol
AU - Kim, Joong Hoon
AU - Jun, Hwandon
AU - Chung, Gunhui
PY - 2012/3/1
Y1 - 2012/3/1
N2 - In this study, Subsystem-Based Pressure Dependent Demand (SPDD) analysis is implemented using the concept of effective supply to eliminate the uncertainties caused by the Head-Outflow Relationship (HOR) in Pressure Dependant Demand (PDD) analysis. This study optimizes the nodal water demands to satisfy the nodal pressure requirement under the abnormal condition defined as the part of the water distribution systems that is closed due to maintenance, rehabilitation, or accidents. The total water supply is optimized and defined as the effective supply, which is the maximum water supply while maintaining the nodal pressure requirements (25 psi) to guarantee the customer's convenience. A meta-heuristic algorithm, the Harmony Search (HS) algorithm, is applied to optimize the system. To decrease the effect of the HOR uncertainties, an optimization method is proposed in this study using the EPANET model that is widely used for the hydraulic simulation. To evaluate the applicability of the suggested model, Supply Index (SI), Pressure Index (PI), Effective Supply Index (ESI), and Subsystem Importance Index (SII) are also defined and calculated from a real-sized network. This paper firstly tried to perform pressure dependent demand analysis for subsystem without the HOR equation that has been an important issue in water distribution system analysis. The developing method could be a good alternative for the design and maintenance of water distribution systems.
AB - In this study, Subsystem-Based Pressure Dependent Demand (SPDD) analysis is implemented using the concept of effective supply to eliminate the uncertainties caused by the Head-Outflow Relationship (HOR) in Pressure Dependant Demand (PDD) analysis. This study optimizes the nodal water demands to satisfy the nodal pressure requirement under the abnormal condition defined as the part of the water distribution systems that is closed due to maintenance, rehabilitation, or accidents. The total water supply is optimized and defined as the effective supply, which is the maximum water supply while maintaining the nodal pressure requirements (25 psi) to guarantee the customer's convenience. A meta-heuristic algorithm, the Harmony Search (HS) algorithm, is applied to optimize the system. To decrease the effect of the HOR uncertainties, an optimization method is proposed in this study using the EPANET model that is widely used for the hydraulic simulation. To evaluate the applicability of the suggested model, Supply Index (SI), Pressure Index (PI), Effective Supply Index (ESI), and Subsystem Importance Index (SII) are also defined and calculated from a real-sized network. This paper firstly tried to perform pressure dependent demand analysis for subsystem without the HOR equation that has been an important issue in water distribution system analysis. The developing method could be a good alternative for the design and maintenance of water distribution systems.
KW - effective supply
KW - harmony search
KW - pressure dependent demand analysis
KW - subsystem
KW - water distribution systems
UR - http://www.scopus.com/inward/record.url?scp=84863253423&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84863253423&partnerID=8YFLogxK
U2 - 10.1007/s12205-012-1448-1
DO - 10.1007/s12205-012-1448-1
M3 - Article
AN - SCOPUS:84863253423
VL - 16
SP - 457
EP - 464
JO - KSCE Journal of Civil Engineering
JF - KSCE Journal of Civil Engineering
SN - 1226-7988
IS - 3
ER -