C 계수의 추정오차가 배수관망해석에 미치는 영향 = Effect of C Factor Errors on the Analysis of Water Distribution Systems

다국어 초록 (Multilingual Abstract)

This study is to investigate the effect of C factor errors on the analysis of water dis-tribution systems. For this purpose, an artificial distribution network and a real dis-tribution network were selected as the study networks. Results are as follows. ⅰ. The C fator of a pipe which has small velocity didn`t give significant effect on the analysis of a water distribution system. ⅱ. The effect of decreased value of C factors give more influence of the analysis of water distribution systems than that of the increased values. ⅲ. For the C factor calibration errors of the residual water heads as well as those of the head losses should be considered together. ⅳ. In the analysis of water distribution systems, changes of C factors can give influ-ences only on the nodes which locate behind the pipe. Therefore, this characteristics should be considered in the selection of nodes for the measurement of water heads.