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@INPROCEEDINGS{Stock:1020535,
      author       = {Stock, Jan and Xhonneux, André and Müller, Dirk},
      title        = {{A}utomated separation of existing district heating
                      networks for the utilisation of available heat sources},
      reportid     = {FZJ-2024-00248},
      year         = {2023},
      abstract     = {Integrating available waste heat and renewable heat sources
                      into district heating systems is essential to replace the
                      mainly fossil-based heat supply of the building sector.
                      However, integrating a heat source into an existing district
                      heating system can be challenging, e.g., an unfavourable
                      location of the heat source to the network structure can
                      lead to pressure cones. Furthermore, the temperature levels
                      of available heat sources often do not match the network
                      temperatures, so a heat pump system is required to raise the
                      heat source temperature. Alternatively, the temperature of
                      the district heating network can be reduced accordingly to
                      directly use a low-temperature heat source, which requires
                      additional adaptions at many supplied buildings. The
                      resulting difficulties that arise while integrating heat
                      sources in an existing district heating system can be
                      tackled by, e.g., separating the network structure into two
                      independent networks, where the utilised heat source
                      supplies the separated network and the conventional heat
                      source still supplies the remaining network. In this way,
                      the operation of the remaining network is only slightly
                      affected, as only some network branches are separated, which
                      makes difficult control adaptions for the entire district
                      heating system unnecessary. For efficient usage of the newly
                      utilised heat source, the separated network forming a new
                      standalone district heating system could be further adapted
                      with less effort than adapting the whole system. In this
                      work, we present a methodology for the automated
                      identification of suitable separation options for existing
                      district heating networks. We apply a clustering algorithm
                      that identifies clusters in the network topology. Based on
                      these clusters and the new heat source's geographical
                      location and heat capacity, we derive possible options for
                      network separation. For all options, a Modelica simulation
                      model is automatically generated and executed to verify the
                      operability of both the separated and the remaining network.
                      In addition, we evaluate the options for network separation
                      by deriving key performance indicators resulting in the most
                      beneficial separation option to integrate the new heat
                      source from both an economic and an ecological point of
                      view.},
      month         = {Sep},
      date          = {2023-09-22},
      organization  = {Conference: 9th International
                       Conference on Smart Energy Systems,
                       Copenhagen (Denmark), 22 Sep 2023 - 23
                       Sep 2023},
      subtyp        = {After Call},
      cin          = {IEK-10},
      cid          = {I:(DE-Juel1)IEK-10-20170217},
      pnm          = {1122 - Design, Operation and Digitalization of the Future
                      Energy Grids (POF4-112)},
      pid          = {G:(DE-HGF)POF4-1122},
      typ          = {PUB:(DE-HGF)6},
      url          = {https://juser.fz-juelich.de/record/1020535},
}