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Development and application of a guideline for assessing optimization potentials for district heating systems

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  • Vannahme, Anna
  • Ehrenwirth, Mathias
  • Schrag, Tobias

Abstract

Integrating renewable energies into district heating systems has a large potential to reduce CO2-emissions in the heating sector. As district heating systems offer the possibility of incorporating renewable energies into the heat supply, new systems have to be built and the existing networks must be maintained. This study investigates ways to optimize existing district heating systems in order to ensure economic sustainability in the long-term. Previous case studies have elaborated on a variety of optimization measures. However, to date, these measures have neither been collected nor consistently assessed for a wider application range. Therefore, in the study presented here a system for assessing the ecological and economic benefits of optimization measures was developed and applied. The assessment method utilized showed that optimization of district heating consumer substations and adding of a central buffer storage tank has a high optimization potential in comparison to intermittent operation strategy, which has a significantly lower optimization potential. From this information and the transferability data, a district heating operator can determine which optimization measure should be prioritized, which is shown at the end of the paper on an example case.

Suggested Citation

  • Vannahme, Anna & Ehrenwirth, Mathias & Schrag, Tobias, 2024. "Development and application of a guideline for assessing optimization potentials for district heating systems," Energy, Elsevier, vol. 297(C).
    • Handle: RePEc:eee:energy:v:297:y:2024:i:c:s036054422400999x
    DOI: 10.1016/j.energy.2024.131226
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