Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Hydraulic Analysis and Sizing of Inlet-Pipe Diameter for the Water Distribution Network

상수급수관 인입관경 제안 및 수리해석

  • Shin, Sung-kyo (Department of Environmental Engineering, Catholic University of Pusan) ;
  • Kim, Eun-ju (Department of Environmental Engineering, Catholic University of Pusan) ;
  • Choi, Si-Hwan (Samyoung Technology)
  • 신성교 (부산가톨릭대학교 환경공학과) ;
  • 김은주 (부산가톨릭대학교 환경공학과) ;
  • 최시환 ((주)삼영기술)
  • Received : 2021.09.08
  • Accepted : 2021.12.20
  • Published : 2022.01.31
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Abstract

The objective of this study is to determine the appropriate size of the inlet pipe diameter and thereby conduct hydraulic analysis for the Korean water distribution network. To this end, the data tables for equivalent pipe diameters and outflow rates presently employed in Korea were adopted. By incorporating the table of equivalent pipe diameters, it was found that the size of the inlet pipe diameter was overestimated, which can cause shortage of water pressure and malfunctioning or insufficiency of outflow rate in the corresponding adjacent region. However, by conducting hydraulic analysis based on the table of outflow rates, relatively reasonable flow rates were observed. Furthermore, by comparing the real demand-driven analysis (RDDA) approach and demand-driven analysis (DDA) approach toward managing the huge water demand, it was observed that DDA could not effectively respond to real hourly usage conditions, whereas RDDA (which reflects the hourly effects of inlet pipe diameter and storage tanks) demonstrated results similar to that of real water supply.

Keywords

Acknowledgement

본 연구는 한국수자원공사(K-water)의 개방형 혁신 R&D(B-T-009)사업의 일환으로 수행되었습니다.

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