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A Basic Study for the Variation of Nodal Demands According to the Low Pressure in Water Distribution Systems  

Hyun, In-Hwan (단국대학교 토목환경공학과)
Lee, Sang-Mok (단국대학교 토목환경공학과)
Kim, Young-Hwan (단국대학교 토목환경공학과)
Ahn, Yong-Ho (단국대학교 토목환경공학과)
Publication Information
Journal of Korean Society of Water and Wastewater / v.16, no.6, 2002 , pp. 726-732 More about this Journal
Abstract
Pressure drop could happen in the water distribution systems due to pipe breaks or maintenance. The pressure drop causes the water service shutdown and nodal water demands should be reduced in some areas. The conventional analysis method of water distribution systems can not consider the change of nodal water demands caused by these pressure drops. This study is to investigate the variation of nodal water demands according to the nodal water pressure and its effect on the analysis of water distribution systems. For these purpose, one real water service district was selected as a study area. As a result, nodal water demand patterns according to the water pressure could be suggested. Also, we could confirm that the suggested new analysis method for the water distribution systems which considering water pressure drops could be more reliable than the conventional method.
Keywords
water distribution system analysis; nodal demand; insufficient pressure;
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