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Çѱ¹¼öÀÚ¿øÇÐȸ / v.43, no.2, 2010³â, pp.201-210
HSPDA ¸ðÇü ¹× ADF index¸¦ ÀÌ¿ëÇÑ »ó¼ö°ü¸ÁÀÇ ½Å·Úµµ »êÁ¤
( Estimation of the Reliability of Water Distribution Systems using HSPDA Model and ADF Index )
¹éõ¿ì;Àüȯµ·;±èÁßÈÆ; ;¼­¿ï»ê¾÷´ëÇб³ °ø°ú´ëÇÐ °Ç¼³°øÇкÎ;°í·Á´ëÇб³ °ø°ú´ëÇÐ °ÇÃà.»çȸȯ°æ°øÇкÎ;
 
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º» ¿¬±¸¿¡¼­´Â HSPDA¸ðÇüÀ» ±â¹ÝÀ¸·Î ÇÑ »ó¼ö°ü¸ÁÀÇ ½Å·ÚµµºÐ¼® ¹æ¾ÈÀ» Á¦¾ÈÇÏ¿´´Ù. ´ëÇ¥ÀûÀÎ »ó¼ö°ü¸ÁÀÇ ½Å·ÚµµºÐ¼® ¹æ¹ýÀ¸·Î´Â ¼ö·®°ú ¼ö¾ÐÀÇ È®º¸°¡ ºÒ°¡´ÉÇÑ ¼ö¿äÀýÁ¡À» »êÁ¤Çϰí ÇÊ¿ä¼ö·®/°ø±Þ°¡´É¼ö·® ȤÀº ¾Ð·ÂÈ®º¸ÀýÁ¡¼ö/ÀüüÀýÁ¡¼ö µîÀ» °è»êÇÏ¿© »ó¼ö°ü¸ÁÀÌ ¾ó¸¶³ª ½Å·ÚÇÒ ¼ö Àִ°¡¸¦ ÆÇ´ÜÇÏ´Â °ÍÀÌ ÀÖ´Ù. À̸¦ °è»êÇϱâ À§Çؼ­´Â ¼ö¸®¸ðÇüÀ» ÀÌ¿ëÇÑ »ó¼ö°ü¸ÁÀÇ ¸ðÀǰ¡ ÇÊ¿äÇϳª ÀýÁ¡ÀÇ ¾Ð·Â°ú´Â »ó°ü¾øÀÌ Ç×»ó ¸ðµç ¿ë¼ö·®Àº °ø±Þ°¡´ÉÇÏ´Ù´Â °¡Á¤À» »ç¿ëÇÏ´Â Demand-Driven Analysis (DDA) ¸¦ ½Å·Úµµ ºÐ¼®¿¡ »ç¿ëÇÒ °æ¿ì ½Å·Úµµ°¡ °ú¼Ò »êÁ¤µÉ ¼ö ÀÖÀ¸¸ç, ÀýÁ¡¼ö¿ä´Â ÀýÁ¡¼öµÎ¿¡ ºñ·ÊÇÑ´Ù´Â °¡Á¤À» »ç¿ëÇÏ´Â Pressure-Driven Analysis (PDA)ÀÇ Àû¿ëÀÌ ÇÊ¿äÇÏ´Ù. ±×·¯³ª ±âÁ¸¿¡ ¼öÇàµÈ ¸¹Àº ¿¬±¸¿¡¼­´Â °ü¸ÁÀÇ Æ¯¼º¿¡ µû¶ó Á¦ÇÑÀûÀÎ Àû¿ë¼ºÀ» °¡Áö´Â PDA ¸ðÇü°ú semi-PDA¸ðÇüÀÌ ºñÁ¤ »ó¿î¿µ»óÅÂÀÇ »ó¼ö°ü¸Á ¼ö¸®¸ðÀÇ¿¡ ÀÌ¿ëµÇ¾ú°í ÀÌ·Î ÀÎÇÏ¿© Á¤È®ÇÑ »ó¼ö°ü¸ÁÀÇ ½Å·Úµµ »êÁ¤ÀÌ ¾î·Á¿ü´Ù. º» ¿¬±¸¿¡¼­´Â ±âÁ¸ÀÇ PDA¸ðÇüÀÇ °¡Áö´Â ´ÜÁ¡À» º¸¿ÏÇÑ HSPDA ¸ðÇü°ú Available Demand Fraction (ADF) Áö¼ö¸¦ ÀÌ¿ëÇÏ¿© »ó¼ö°ü¸ÁÀÇ ½Å·Úµµ »êÁ¤ÀÌ °¡´ÉÇÑ ¸ðÇüÀ» Á¦¾ÈÇÏ¿´´Ù. HSPDA¸¦ Ȱ¿ëÇÏ¿© »ó¼ö°ü¸ÁÀÇ ºñÁ¤»ó¿î¿µ»óŸ¦ ¸ðÀÇÇϰí, À̸¦ ÀÌ¿ëÇÏ¿© ÀýÁ¡º° ADF Áö¼ö¸¦ »êÁ¤, »ó¼ö°ü¸ÁÀÇ ½Å·Úµµ¸¦ »êÁ¤ÇÏ¿´´Ù. Á¦¾ÈµÈ ½Å·ÚµµºÐ¼®±â¹ýÀ» ´ë»ó°ü¸Á¿¡ Àû¿ëÇÏ¿© ±âÁ¸ÀÇ ¿¬±¸°á°ú¿Í ºñ±³ÇÏ¿´À¸¸ç, À̸¦ ¹ÙÅÁÀ¸·Î ¼ö¸³ °¡´ÉÇÑ ½Å·Úµµ È®º¸¹æ¾ÈÀ» Á¦½ÃÇÏ¿´´Ù.
In this study, new methodology to estimate the reliability of a water distribution system using HSPDA model is suggested. In general, the reliability of a water distribution system can be determined by estimating either the ratio of the required demand to the available demand or the ratio of the number of nodes with sufficient pressure head to the number of nodes with insufficient pressure head when the abnormal operating condition occurs. To perform this approach, hydraulic analysis under the abnormal operating condition is essential. However, if the Demand-Driven Analysis (DDA) which is dependant on the assumption that the required demand at a demand node is always satisfied regardless of actual nodal pressure head is used to estimate the reliability of a water distribution system, the reliability may be underestimated due to the defect of the DDA. Therefore, it is necessary to apply the Pressure-Driven Analysis (PDA) having a different assumption to the DDA's which is that available nodal demand is proportion to nodal pressure head. However, because previous study used a semi-PDA model and the PDA model which had limited applicability depending on the characteristics of a network, proper estimation of the reliability of a water distribution system was impossible. Thus, in this study, a new methodology is suggested by using HSPDA model which can overcome weak points of existing PDA model and Available Demand Fraction (ADF) index to estimate the reliability. The HSPDA can simulate the hydraulic condition of a water distribution system under abnormal operating condition and based on the hydraulic condition simulated, ADF index at each node is calculated to quantify the reliability of a water distribution system. The suggested model is applied to sample networks and the results are compared with those of existing method to demonstrate its applicability.
 
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»ó¼ö°ü¸Á;½Å·Úµµ ºÐ¼®;ADFÁö¼ö;Water Distribution System;Reliability Analysis;HSPDA;ADF index;HSPDA model;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.43, no.2, 2010³â, pp.201-210
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201007633730110)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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