Entscheidungsunterstützung für Planung und Betrieb von Trinkwasserversorgungsanlagen

Energieeffizienz, Minimierung von Lebenszykluskosten, Einhaltung der Qualität des Trinkwassers und Versorgungssicherheit - diese teils widersprüchlichen Ziele machen Planung und Betrieb von Trinkwasserversorgungssystemen zu einer mehrkriteriellen Aufgabe. Gleichzeitig ergibt sich bei der Koordination von Transport- und Brunnenpumpen sowie der Speicherung von Wasser eine Vielzahl von Handlungsoptionen, wodurch ein optimaler Betrieb des Trinkwasserversorgungssystems ohne Hilfsmittel kaum umzusetzen ist.

Energy efficiency, minimization of life cycle costs, quality compliance of drinking water and security of supply - these partly contradictory goals turn the design and the operation of drinking-water supply systems into a multicriteria problem. The coordination of transport pumps and well pumps as well as the storage of water allow the operator of the waterworks a variety of options. Consequently, optimal operation of drinking-water supply systems is difficult to achieve when technical support is missing. In this article, a decision support tool is presented that focuses on the multicriteria nature of this problem and allows the operator a holistic view on his drinking-water supply system. The first application example investigates the energetic optimization of an existing operating principle under hygienic constraints. A second example demonstrates the conflict resulting from simultaneous consideration of the two criteria use of energy and energy costs. In both example s, the software prototype is used to compute optimal trade-offs regarding the design and the operation of a drinking-water supply system and to compare them graphically. Thereby, the impact that different pump operation decisions have becomes more transparent to the user. In a field test, the usability of the software prototype is demonstrated and energy savings of 9 % compared to conventional pump operation are achieved.