Water Supply Vol 5 No 3-4 pp 137–143 © IWA Publishing 2005
Improving operational efficiency by interconnecting regional water distribution systems
E. Shin*, H. Park**, T. Ryu***, J. Kim**** and K.T. Yum*****
*Department of Civil and Environmental Engineering, KAIST, 373-1 Guseong-dong, Yuseong-gu, Daejeon 305-701, Korea
**Department of Civil and Environmental Engineering, KAIST, 373-1 Guseong-dong, Yuseong-gu, Daejeon 305-701, Korea
***Korea Water Resources Corporation (KOWACO), San 6-2, Yeonchuk-dong, Daedeok-gu, Daejeon 306-711, Korea
****Korea Water Resources Corporation (KOWACO), San 6-2, Yeonchuk-dong, Daedeok-gu, Daejeon 306-711, Korea
*****Korea Water Resources Corporation (KOWACO), San 6-2, Yeonchuk-dong, Daedeok-gu, Daejeon 306-711, Korea
ABSTRACT
Since regional water supply systems (RWSS) in Korea are all separated and are tree-shaped networks, the reliability is low and operation is not efficient in an emergency. So connecting RWSS to each other can be a good option to improve the operation efficiency. This study has been initiated to evaluate efficiency looking at a pilot case. Expected shortage has been selected as a surrogate. In this study, we developed pipe failure probability equations which are suitable in Korea by considering material, diameter, year, and length. As a pilot case, the three systems of Jeon-ju (JJ), Bu-an (BA), and Seom-jin (SJ) are selected and we consider two connections: JJ-BA and JJ-SJ. In each connection we develop three alternative plans, and we conclude that connections of JJ-BA and JJ-SJ can improve the operational efficiency as much as 5% and 4%, respectively. Keywords Connection; expected shortage; regional water distribution system
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