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http://dx.doi.org/10.5322/JESI.2022.31.1.33

Hydraulic Analysis and Sizing of Inlet-Pipe Diameter for the Water Distribution Network  

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)
Publication Information
Journal of Environmental Science International / v.31, no.1, 2022 , pp. 33-42 More about this Journal
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
Water supply; Network analysis; Real demand; Pipe diameter;
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  • Reference
1 Back, C. W., Jun, H. D., Kim, J. H., 2007, Development of HSPDA model for water distribution system under abnormal operating condition, Journal of The Korean Society of Civil Engineers, 27, 1015-6348.
2 Noh, J. W., Yoo, D. G., Shin, E. H., Lee, H. M., 2017, Development and Its applications of K-NRisk for hydraulic analysis of water supply system under abnormal conditions, Proceedings of the Korea Water Resources Association Conference 2017, 271-271.
3 Busan Metropolitan City, 2021, Busan metropolitan tapwater supplying ordinace, Busan, Korea.
4 Back, C. W., Jun, H. D., Kim, J. H., 2010, Estimation of the reliability of water distribution systems using HSPDA model and ADF Index, J. Korea Water Resour. Assoc., 43, 1226-6280.
5 Chang, D. E., Kang, K. H., 2014, Experimental analysis of nodal head-outflow relationship using a model water supply network for pressure driven analysis of water distribution system, J. Korean Soc. Environ. Eng., 36, 421-428.   DOI
6 Lee, H. D., Choi, S. H., 2018, RDDA method of distribution network with actual usage, The Society of Convergence Knowledge, 6, 7-13.
7 Seoul Arisu-Center, 2019, A Study on the household consunption of tap water under using under 50 mm diameter of pipeline, Seoul, Korea.
8 Seoul Metropolitan City, 2021, Seoul metropolitan tapwater supplying ordinace, Seoul, Korea.
9 U.S. Environmental Protection Agency, 2014, Water utility case study of real-time network hydraulic and water quality modeling using EPANET-RTX Libraries, https://nepis.epa.gov/Exe/ZyNET.exe/yPURL.
10 U.S. Environmental Protection Agency, 2021, https://www.epa.gov/water-research/epanet.
11 Korea Water and Wastewater Works Association, 2017, Water supply korea design standard, KDS 57 65 00, Ministry of Environment, Seoul, Korea.