Intermittent Operations of District Heating Networks in Summer Months
A Showcase
DOI:
https://doi.org/10.52825/isec.v1i.1209Keywords:
Heating Network, Optimization, Intermittent Operational Strategy, Reduction of Operational CostsAbstract
In the OREWA project, optimization measures for existing heat networks were identified and assessed based on both economic and ecological considerations [1]. One of the focal investigations was the simulation of intermittent operational strategies tailored for the summer months. Next to the classic intermittent approach an innovative variation was explored, which involved the storage of hot water during intermediate phases in large central tanks to further minimize heat losses. Both the classic and innovative intermittent strategies showcased substantial reductions in network losses and energy consumption for circulation pumps. This research shows the melioration of heat network efficiency through a substantial reduction of summer heat losses for a network with a low heat demand density of 0.7 MWh/(m²·a).
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Vannahme A, Ehrenwirth M, Trinkl C, Schrag T. General Optimization Guideline for District Heating Networks and its exemplary Application. 7th International Conference on Smart Energy Systems, 21-22 September 2021. Kopenhagen; 2021.
Hammer A, Kienberger T, Kriechbaum L, Böckl B, Vopava J, Karner et al. Temperaturflexibilisierung im Schwachlastbereich des Betriebs von Nahwärmenetzen: TFlex. [April 04, 2023]; Available from: https://nachhaltigwirtschaften.at/resources/sdz_pdf/berichte/schriftenreihe-2016-34-tflex.pdf.
Leoni P. Projekt heat_portfolio (FFG-Nr. 848849) Deliverables D4.1 und D7.1: Machbarkeitsanalyse der Abwärmeeinspeisung; Bericht zur Simulation der Integration dezentraler Abwärmequellen in die Fallbeispiele. [May 30, 2020]; Available from: https://energieforschung.at/projekt/technische-https://energieforschung.at/wp-content/uploads/sites/11/2020/12/heat-portfolio-D4.1-7.1.pdf.
Kleinertz B, Brühl G, Veitengruber F, Pellinger C, Roon S. Transformation of an exisitng into a fourth generation heating network. Energy Procedia 2018;149. DOI 10.1016/j.egypro.2018.08.212
VDI-Gesellschaft für Energie und Umwelt. Referenzlastprofile von Ein- und Mehrfamilienhäusern für den Einsatz von KWK-Anlagen(VDI 4655). Düsseldorf: Verein Deutscher Ingenieure e. V; 2008.
Hafner B. Carnot Blockset Version 1.0 - Conventional and renewable enrgy systems optimization blockset - User's guide. Solar-Institut Jülich, Fachhochschule 1999.
Vannahme A, Patel D, Schmitt D, Summ T, Trinkl C, Schrag T. Simulation study of the optimization of an existing local district heating network with an increasing degree of digitalization: Under Review. Energy. The international Journal. Special Issue on Smart Energy Systems SESAAU2023 2024.
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Copyright (c) 2024 Anna Vannahme, Simon Müller, David Schmitt, Thorsten Summ, Christoph Trinkl, Tobias Schrag
This work is licensed under a Creative Commons Attribution 4.0 International License.
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Bundesministerium für Wirtschaft und Klimaschutz
Grant numbers FKZ: 03EN3005A
