North Carolina experienced record drought in 2007, especially the Triangle area in the central part of the
state. The drought caused extremely low water levels in the reservoirs that supply drinking water to the
cities of Raleigh and Durham, prompting them to look to their neighbors for emergency supplies. The
Town of Cary, a neighboring water system which is supplied by Jordan Lake, had sufficient supply
capacity to meet its needs and to supplement Raleigh and Durham, primarily in the winter when demands
were lower.
This paper describes the hydraulic modeling that determined the maximum amount of water that Cary
could supply to Raleigh and Durham on a sustained basis. The project identified limitations imposed by
plant capacity, pump sizes and the capacity of the pipe systems on either side of existing and potential
interconnections.
The study involved combining three large hydraulic models and simulating flow between systems for
extended periods. The combined model predicted flow rates, pressures and tank performance. The model
investigated various scenarios aimed at maximizing flow through interconnections given pressure zone
configurations and other unique features of each distribution system. Includes table.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 3.3 MB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 35 |
| Published : | 11/01/2009 |
