Sam Ziemann From - Region of Waterloo
Sam Ziemann From - Region of Waterloo
Sam Ziemann From - Region of Waterloo
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August 26, 2011<strong>Sam</strong> <strong>Ziemann</strong>Page 12 <strong>of</strong> 12Reference: Fluid Transient Analysis for Strange Street Raw Water Supply System – Draft TechnicalMemorandum• Transient control strategies for the SSRWS should focus on applications thatprotect against downsurge and column separation, as well as pump controlalternatives to reduce the transient pressure envelope during pump start-up andshut-down.• Consider installation <strong>of</strong> a pressure sustaining valve on the Strange StreetReservoir fill line with a hydraulic grade setting <strong>of</strong> 365 m to maintain positivepressure within the raw water supply system during normal well start-up andshut-down.• Conduct field testing to confirm the effectiveness <strong>of</strong> the selected control strategyat limiting pressures within the raw water supply system.We trust the above analysis provides the information needed to assist in thedevelopment <strong>of</strong> alternative design concepts. If you should have any questions, pleasedo not hesitate to contact us.STANTEC CONSULTING SERVICES INC.Michael Georgalas, PEAssociate, Environmental Infrastructuremichael.georgalas@stantec.comAttachment: Figures 1-10c. John Take
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