Practical Head-Outflow Relationship Definition Methodology That Accounts for Varied Water-Supply Methods
- Authors
- Chang, Dong Eil; Yoo, Do Guen; Kim, Joong Hoon
- Issue Date
- 6월-2020
- Publisher
- MDPI
- Keywords
- pressure-driven analysis; demand-driven analysis; head-outflow relationship; secondary water-pipe network; water supply
- Citation
- SUSTAINABILITY, v.12, no.11
- Indexed
- SCIE
SSCI
SCOPUS
- Journal Title
- SUSTAINABILITY
- Volume
- 12
- Number
- 11
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/55577
- DOI
- 10.3390/su12114755
- ISSN
- 2071-1050
- Abstract
- Achieving reliable pressure-driven analysis (PDA) results that account for anomalies within water-pipe networks requires a head-outflow relationship (HOR) model that can calculate supply flow rate according to the supply pressure at each node. Many studies have suggested HOR models, but a methodology to define HORs that considers the actual residential environment of users and differing water-supply methods for residential buildings has not yet been proposed. This study considered water-use data from buildings and actual differences in residential environments in a surveyed area (including building heights, topography, and water systems within buildings) and water-supply methods (indirect/direct water supply, existence of a pump within buildings) to develop a methodology and derive a representative HOR for the target area for PDA. Further, a representative HOR was determined for each block by applying the developed methodology for two blocks with similar residential environments but different water-use patterns. It confirmed that the HOR induced through this process could provide high water-supply performance despite a low supply head and needed to reflect the diversity of the water-supply method. The proposed HOR-definition methodology can be easily applied in water-pipe network design and operation processes and ensure objectivity and rationality of HOR selection to yield reliable PDA results.
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Collections - College of Engineering > School of Civil, Environmental and Architectural Engineering > 1. Journal Articles
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