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Design of pumping stations Pumping stations play an important role in water systems. The proper functioning of a pumping station depends heavily on the overall water system. The pumps are designed for day to day use (design point) but must also be able to function under extreme conditions. To find the most effective pump installation for the lowest costs Royal Haskoning looks at the overall system performance rather than object level. By analyzing the overall water system in an integrated model optimization can be obtained. The integrated model addresses all components of the water system by their hydraulic characteristics such as canal dimension, pump curves, rotation speed of the pumps , elevations of the lake and polders, etc. By simulating all possible operating conditions and analyzing the dynamic behavior of the overall water system, proper working of the pumping station can be verified and optimized. An example project: Pumping station "Van Sasse" located in Grave, is a monument that was built in 1928 and is about to be renovated. The station is part of a large water system with different water storages up stream and has a capacity of 706 cfs (20 m 3 /s). During very high water levels in the Meuse river, the pumping station must pump the water from the upstream polders to the river against a manometric lift height of around 3.4 mlc. This is a situation that occurs once every ten years. Haskoning has conducted a hydraulic study into the possibility to renew the pumping station for the next 40 years while upgrading the current capacity against a larger lift height. The study also includes ‐ in addition to the hydraulic design ‐ also a cost estimate (TCO), a roadmap and a risk‐analysis. [author: Guus van Beveren] Some figures used in the study: Figure 1: Level scheme
