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Automated district heating network model generation based on open street map and heat cadastre data
Publikationstyp
Conference Presentation
Date Issued
2024
Sprache
English
Citation
2. Norddeutsche Wärmekonferenz 2024
Contribution to Conference
The European Union has set itself the goal of being climate-neutral by 2050. Therefore, the heating sector is facing the challenge of transitioning to a climate-neutral heat supply. In many European countries district heating networks (DHNs) play a vital role in supplying customers with heat. In order to support the transition to climate-neutral heat supply, automated planning processes for DHNs are helpful. This paper presents a tool that generates a model of a DHN based on open street map and heat cadastre data. The open street map data is used to find the optimal topology of the DHN and the length of the supply and return pipes, as shown in Fig. 1. The heat cadastre data contains the location of the houses and the maximum required heating power and is available for the city of Hamburg, Germany. The maximum required heating power is used to calculate the required mass flow in each pipe. Since pipe sizing is from a technical point of view a trade-off between heat losses and required pumping power, the pipe diameters are dimensioned based on a target pressure loss (TPL). The output of the automated planning process is a model of the optimal DHN supplying all houses in the selected area, which can be simulated, for example, in Dymola using the TransiEnt library. This work shows that DHNs can be dimensioned automatically in a robust way. However, a heat cadastre is required to locate the houses and to calculate the pipe diameters.
DDC Class
600: Technology