Inventering av processvattenbalans
fastställande av fjärrvärmedistributionens läckage inom Vattenfall Värme Uppsala AB
FjärrvärmeFjärrvärmeledningarVattenläckageDejonatBeräkningsmodellLäckagesökningInventeringVattenbalansUppsalaMiljöbelastning
Heat is distributed to the district heating customers through pipes with water as a heat carrier. The district heating system is complex. To decide what is leakages from the district heating net versus what is the water consumption of the plant, is difficult.
Therefore, the purpose of this master thesis is to establish a model where the district heating net?s leakages but also the water consumption of the plant can be followed
daily. The project is performed at Vattenfall´s district heating power plant in Uppsala.
Information is gathered through discussions, drawings of the plant and guided tours of the plant. The result is a calculation model collecting data from 44 gauges listed in
a database. The model automatically calculates the district heating net's leakages, the water consumption of the plant and information concerning the water balance. The model is divided in four categories to get it structured and clear. The daily updates make it possible to detect leakages in the district heating net earlier. Therefore water
and money can be saved and the environmental impact can be decreased.