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Marco Cozzini
EURAC Research, Institute for Renewable Energy, Viale Druso 1, 39100 Bolzano, Italy

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Journal article
Published: 12 January 2021 in Energies
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This paper deals with the modelling of an existing neutral-temperature district heating network, meaning that the distribution temperature is close to the ambient temperature, with decentralised heat pumps. The considered case is located in Ospitaletto, Italy. Heat sources are given by industrial waste heat at about 25 °C and aquifer wells at about 15 °C. Two models are used to analyse the network: a detailed model able to calculate local values of operating parameters and an approximate model focused on energy balances aggregating all users with a lumped demand. Both models include the behaviour of heat pumps, a feature not available in other district heating modelling tools. An entire year of operation is considered, with an hourly time resolution. Load profiles are provided as inputs, while the main outputs consist of energy balances and primary energy consumptions. The corresponding results are compared, showing a reasonable agreement, where the approximate model underestimates the overall electricity consumptions by about 15% with respect to the detailed model. On the other hand, the different information levels and execution times (the detailed model requires about 30 min to solve the considered network for a full year with hourly time steps, while the approximate model is almost immediate) make the two models suitable for different purposes, like the simulation of control solutions for the detailed one and scenario analysis for the other.

ACS Style

Selva Calixto; Marco Cozzini; Giampaolo Manzolini. Modelling of an Existing Neutral Temperature District Heating Network: Detailed and Approximate Approaches. Energies 2021, 14, 379 .

AMA Style

Selva Calixto, Marco Cozzini, Giampaolo Manzolini. Modelling of an Existing Neutral Temperature District Heating Network: Detailed and Approximate Approaches. Energies. 2021; 14 (2):379.

Chicago/Turabian Style

Selva Calixto; Marco Cozzini; Giampaolo Manzolini. 2021. "Modelling of an Existing Neutral Temperature District Heating Network: Detailed and Approximate Approaches." Energies 14, no. 2: 379.

Proceedings
Published: 01 January 2018 in Proceedings
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Workshop organized by INDIGO project as a collaborative activity among EU funded projects in the area of District Heating and Cooling. The objective of the workshop was twofold: (1) to create a cluster of European funded projects working in the area of District Energy Systems; and (2) to create a networking opportunity in which to share experiences on the results and difficulties of the researches, and to identify synergies.

ACS Style

Tatiana Loureiro; Miika Rämä; Raymond Sterling; Marco Cozzini; Meritxell Vinyals; Michael Descamps; Wolfgang Birk; Gozde Unkaya; Federica Fuligni; Borna Doračić; Marin Petrovic; Dominik Rutz; Inés Arias; Sofia Lettenbichler; Ioannis Meintanis; Serafeim Moustakidis; Martin Buchholz; Reiner Buchholz; Mathieu Provost; Philipp Geyer. District Energy Systems: A Collaborative Exchange of Results on Planning, Operation and Modelling for Energy Efficiency. Proceedings 2018, 2, 1127 .

AMA Style

Tatiana Loureiro, Miika Rämä, Raymond Sterling, Marco Cozzini, Meritxell Vinyals, Michael Descamps, Wolfgang Birk, Gozde Unkaya, Federica Fuligni, Borna Doračić, Marin Petrovic, Dominik Rutz, Inés Arias, Sofia Lettenbichler, Ioannis Meintanis, Serafeim Moustakidis, Martin Buchholz, Reiner Buchholz, Mathieu Provost, Philipp Geyer. District Energy Systems: A Collaborative Exchange of Results on Planning, Operation and Modelling for Energy Efficiency. Proceedings. 2018; 2 (15):1127.

Chicago/Turabian Style

Tatiana Loureiro; Miika Rämä; Raymond Sterling; Marco Cozzini; Meritxell Vinyals; Michael Descamps; Wolfgang Birk; Gozde Unkaya; Federica Fuligni; Borna Doračić; Marin Petrovic; Dominik Rutz; Inés Arias; Sofia Lettenbichler; Ioannis Meintanis; Serafeim Moustakidis; Martin Buchholz; Reiner Buchholz; Mathieu Provost; Philipp Geyer. 2018. "District Energy Systems: A Collaborative Exchange of Results on Planning, Operation and Modelling for Energy Efficiency." Proceedings 2, no. 15: 1127.

Journal article
Published: 01 June 2016 in Energy Procedia
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For a demonstration site realized within the European project InSun, we present the monitoring results of a solar thermal field providing process heat for a meat factory. The field uses flat plate collectors, with an overall gross area of 1070 m2. The generated heat is used to provide hot water at two temperature levels in the low-medium range (55–90 °C). The paper focuses on the performance analysis of the solar field, by comparing the measured field efficiency with the nominal collector efficiency and pointing out transient effects. To this purpose, a bin method approach is applied to the detailed analysis of one month (July 2014). Finally, the medium-term performance is investigated analyzing data from three consecutive summers, showing a stable efficiency with no evidence of performance decay.

ACS Style

Marco Cozzini; Mauro Pipiciello; Roberto Fedrizzi; Ilyes Ben Hassine; Dirk Pietruschka; Robert Söll. Performance Analysis of a Flat Plate Solar Field for Process Heat. Energy Procedia 2016, 91, 11 -19.

AMA Style

Marco Cozzini, Mauro Pipiciello, Roberto Fedrizzi, Ilyes Ben Hassine, Dirk Pietruschka, Robert Söll. Performance Analysis of a Flat Plate Solar Field for Process Heat. Energy Procedia. 2016; 91 ():11-19.

Chicago/Turabian Style

Marco Cozzini; Mauro Pipiciello; Roberto Fedrizzi; Ilyes Ben Hassine; Dirk Pietruschka; Robert Söll. 2016. "Performance Analysis of a Flat Plate Solar Field for Process Heat." Energy Procedia 91, no. : 11-19.

Journal article
Published: 31 May 2016 in Renewable Energy and Environmental Sustainability
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The article reports the performance data of a flat plate collector field installed in Austria and supplying process heat to a meat factory, up to a temperature of about 95 °C. The presented data span an entire year, thereby including seasonal effects and allowing for a full characterization of the system performances. Sensor uncertainty is also discussed in detail. Finally, a bin method analysis of the field efficiency is provided. To this purpose, different operating conditions are concisely represented by the so-called reduced temperature, typically used in solar collector applications.

ACS Style

Marco Cozzini; Roberto Fedrizzi; Mauro Pipiciello; Robert Söll; Ilyes Ben Hassine; Dirk Pietruschka. Monitoring of a flat plate solar thermal field supplying process heat. Renewable Energy and Environmental Sustainability 2016, 1, 4 .

AMA Style

Marco Cozzini, Roberto Fedrizzi, Mauro Pipiciello, Robert Söll, Ilyes Ben Hassine, Dirk Pietruschka. Monitoring of a flat plate solar thermal field supplying process heat. Renewable Energy and Environmental Sustainability. 2016; 1 ():4.

Chicago/Turabian Style

Marco Cozzini; Roberto Fedrizzi; Mauro Pipiciello; Robert Söll; Ilyes Ben Hassine; Dirk Pietruschka. 2016. "Monitoring of a flat plate solar thermal field supplying process heat." Renewable Energy and Environmental Sustainability 1, no. : 4.