Prototype of a simulation framework for georeferenced large-scale dynamic simulations of district energy systems

Research output: Contribution to journalArticle

Abstract

With the increasing complexity of district energy systems, both researchers and enterprises require ever more complex modelling and simulation methods. This has resulted in the need for new approaches that can be taken to create large-scale simulations as well as new methods to clearly visualize their dynamic simulation results. This study presents a prototype of a simulation framework for large-scale simulations of district energy systems that offers three main advantages compared to the state of the art: (i) scalable simulation models are made possible; (ii) a novel heating network model generation tool was developed that can be used to create models for the IDA ICE simulation environment; and (iii) the dynamic results of the simulation of the heating network and the buildings can be visualized as animations in QGIS, which makes it possible to clearly visualize the superimposed result layers of the buildings and the network. The prototype was tested in a two-part case study. In the first part of the study, the extent of the district heating network model size was examined, and decoupling methods were applied to 1531 customers. The second part of the study involved a failure scenario, which evaluated the effects of a malfunction at the heat generation plant on the 469 connected buildings. One significant finding was that the temperature progression in the network reacts comparatively quickly, while the room air temperature in well-insulated buildings with larger thermal storage masses cool more slowly. Another finding was that IDA ICE allows fast and accurate simulations with up to 8200 customers or 36,000 pipes in meshed heating networks without parallelization techniques.
Original languageEnglish
Article number113469
Number of pages18
JournalApplied Energy
Volume252
DOIs
Publication statusPublished - 15 Oct 2019

Keywords

  • Dynamic thermal hydraulic pipe simulation
  • Large-scale district heating network
  • Urban energy system simulation
  • Animation of temperature propagation in networks

ASJC Scopus subject areas

  • Energy(all)

Fields of Expertise

  • Sustainable Systems

Treatment code (Nähere Zuordnung)

  • Experimental

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  • Activities

    • 1 Talk at conference or symposium

    Sector Coupling Potentials of a 5th Generation District Heating and Cooling Network

    Hermann Edtmayer (Speaker), Peter Josef Nageler (Contributor), Richard Heimrath (Contributor), Thomas Mach (Contributor), Christoph Hochenauer (Contributor)
    6 Oct 20207 Oct 2020

    Activity: Talk or presentationTalk at conference or symposiumScience to science

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