After much planning and consideration, the first well is now in place at Strømmen Vandværk and the ideal power solution has been chosen.
Obtaining a valuable overview
Prior to this, there was a comprehensive task of dividing the entire supply network into separate pressure zones. As shown in a previous article, the network was split into four zones, each to have an inlet chamber established. The chamber will have an intelligent control valve mounted alongside an ultrasonic water meter, which will then measure the volume entering the pressure zone. This is very valuable information, as the network obtains a full overview of how much water enters a specific zone held against how much is actually consumed by the network customers - all relative to the specific time of day. This way, Strømmen Vandforsyning will be able to start establishing parameters for the pressure adjustments within the zone based on the collected network data. In other words, the pressure will be following the water demand, reducing the pressure when possible to the minimum service pressure promised to network customers.
This way of regulating the pressure can also be used actively for controlling pressure elsewhere in the pressure zone. There might be areas with great pressure losses when consumption is high, which can happen with old, internally overgrown pipes reducing the flow or if the piping is too narrow for the actual water demand. By logging data on flow and pressure in this critical area, the control valve can be programmed to regulate the pressure and keep it at a constant level within the area.
Having the control valve adjusting the pressure constantly is not only saving water and energy, but is also stabilising the overall pressure which has a direct positive impact on the pipeline system lifespan.
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