In addition, both HOFOR and HOFOR’s consulting team consisting of NIRAS A/S and Jacobs followed the project closely. The model tests were carried out in close collaboration with our client who contributed greatly to the project development and successful execution. To ensure safe and efficient hydraulic function and performance under all operating conditions, the pumping station physical scale model was put through an intensive and comprehensive test campaign at the model test facilities at DHI’s headquarters in Hørsholm, Denmark. For this, Grundfos A/S contacted DHI for assistance on the hydraulic assessment and physical scale model tests. As part of this deliverable for the Kalvebod pumping station, Grundfos A/S has the responsibility to validate and optimise the hydraulic performance of the pumping station. Furthermore, they have also validated and optimised the electrical design of the pumping station. Our client Grundfos A/S will deliver the six pumps for which they have also designed the bell mouth inlet and will deliver the column pipes. With four pumps in operation at the time (and two in reserve), the total capacity will be 20.4 m 3/s. The pumps will each have a rated capacity of 5.1 m 3/s. The diameter of the circular pump house will be 17.5 m and the height of the pump house will be about 20 m from the bottom to the ground level at Kalvebod Brygge.
The pumping station’s layout is based on a semi-circle geometry with the tunnel inlet in one side, and six propeller pumps with vertical column pipes and bell mouth inlets distributed around the half circle well above the inlet.
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