Novel District Heating Systems: Methods and Simulation Results

David Huber, Viktoria Illyés, Veronika Turewicz, Gregor Götzl, Andreas Hammer, Karl Ponweiser

Publikation: Beitrag in FachzeitschriftArtikelForschungBegutachtung

Abstract

Fifth-generation district heating and cooling (5th DHC) systems offer promising approaches to decarbonizing space heating, cooling and domestic hot water supply. By using these systems, clustered buildings combined with industrial waste heat can achieve a net-zero energy balance on a variety of time scales. Thanks to the low exergy approach, these systems are highly efficient. As part of the Smart Anergy Quarter Baden (SANBA) project, the thermal energy grid simulation tool TEGSim has been further developed and used to design an ultra-low-temperature district heating (ULTDH) network with hydraulic and thermal components fitted to the specific regional characteristics of the investigated case. Borehole thermal energy storage (BTES) used as seasonal storage ensures long-term feasibility. The annual discrepancy of input of thermal energy provided by space cooling and output of energy demanded by space heating and domestic hot water is supplied by an external low-grade industrial waste heat source. This paper presents the functionality of the simulation and shows how to interpret the findings concerning the design of all components and their interplay, energy consumption and efficiencies.

OriginalspracheEnglisch
Aufsatznummer4450
Seitenumfang23
FachzeitschriftEnergies
Jahrgang14.2021
Ausgabenummer15
DOIs
PublikationsstatusVeröffentlicht - 23 Juli 2021

Bibliographische Notiz

Funding Information:
Acknowledgments: The authors acknowledge TU Wien Bibliothek for financial support through its Open Access Funding Programme and for editing/proofreading.

Funding Information:
Funding: This research was funded by Climate and Energy Fund of the Austrian government and the Austrian Research Promotion Agency (FFG) grant number 16832905.

Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.

Schlagwörter

  • Anergienetz
  • 5thDHC
  • ULTDH network
  • BTES
  • Numerical Simulation

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