Lessons Learnt from Network Modelling of a Low Heat Density District Heating System

Itzal del Hoyo Arce
IK4-TEKNIKER, Parke Teknologikoa, Eibar, Spain

Susana López Perez
IK4-TEKNIKER, Parke Teknologikoa, Eibar, Spain

Saioa Herrero López
IK4-TEKNIKER, Parke Teknologikoa, Eibar, Spain

Iván Mesonero Dávila
IK4-TEKNIKER, Parke Teknologikoa, Eibar, Spain

Ladda ner artikelhttp://dx.doi.org/10.3384/ecp15118393

Ingår i: Proceedings of the 11th International Modelica Conference, Versailles, France, September 21-23, 2015

Linköping Electronic Conference Proceedings 118:42, s. 393-400

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Publicerad: 2015-09-18

ISBN: 978-91-7685-955-1

ISSN: 1650-3686 (tryckt), 1650-3740 (online)


This paper presents the lessons learnt during the development of a library for the modelling of district heating systems (DH systems), especially focusing on the distribution network. The library was built based on elements from the Modelica Standard Library (Modelica Association, 2012) and the NewThermal library (Lopez, del Hoyo, 2013). The modelling strategy chosen is described. Furthermore, the requirements established by the DH networks are set out as well as the models created in response to these demands. Finally, the artificial diffusion phenomenon, present in the simulation of this kind of large thermo-fluid systems, is described.


district heating modelling; plastic pipe model; buried pipe model; numerical diffusion; courant number; transport delay; thermo-fluid simulation


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