Article | Proceedings of the 10<sup>th</sup> International Modelica Conference; March 10-12; 2014; Lund; Sweden | Modelling long-wave radiation heat exchange for thermal network building simulations at urban scale using Modelica
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Title:
Modelling long-wave radiation heat exchange for thermal network building simulations at urban scale using Modelica
Author:
Moritz Lauster: RWTH Aachen University, E.ON Energy Research Center, Institute for Energy Efficient Buildings and Indoor Climate, Aachen, Germany Peter Remmen: RWTH Aachen University, E.ON Energy Research Center, Institute for Energy Efficient Buildings and Indoor Climate, Aachen, Germany Marcus Fuchs: RWTH Aachen University, E.ON Energy Research Center, Institute for Energy Efficient Buildings and Indoor Climate, Aachen, Germany Jens Teichmann: RWTH Aachen University, E.ON Energy Research Center, Institute for Energy Efficient Buildings and Indoor Climate, Aachen, Germany Rita Streblow: RWTH Aachen University, E.ON Energy Research Center, Institute for Energy Efficient Buildings and Indoor Climate, Aachen, Germany Dirk Müller: RWTH Aachen University, E.ON Energy Research Center, Institute for Energy Efficient Buildings and Indoor Climate, Aachen, Germany
DOI:
10.3384/ecp14096125
Download:
Full text (pdf)
Year:
2014
Conference:
Proceedings of the 10th International Modelica Conference; March 10-12; 2014; Lund; Sweden
Issue:
096
Article no.:
013
Pages:
125-133
No. of pages:
9
Publication type:
Abstract and Fulltext
Published:
2014-03-10
ISBN:
978-91-7519-380-9
Series:
Linköping Electronic Conference Proceedings
ISSN (print):
1650-3686
ISSN (online):
1650-3740
Publisher:
Linköping University Electronic Press; Linköpings universitet


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There are different options for modelling indoor and outdoor long-wave radiation exchange in thermal building models for simulations at urban scale. For improving these building models; a good trade-off between accuracy and simulation time is a major challenge. To evaluate different radiation models for thermal network building models; we compared four outdoor radiation and two indoor radiation models.

For the comparison; we set-up three test cases on a generic room and a single family dwelling and analysed surface temperatures; heat demands and simulation times. The results favoured an outdoor radiation exchange model according to the German Guideline VDI 6007 with modified parameter calculations. It includes important simplifications that lead to short computing time while keeping a sufficient accuracy. For indoor radiation exchange modelling at constant temperatures; a linear approach significantly reduces simulation time without any major accuracy losses.

Keywords: Thermal network building model;equivalent outdoor temperature; long-wave radiation exchange; building performance simulation

Proceedings of the 10th International Modelica Conference; March 10-12; 2014; Lund; Sweden

Author:
Moritz Lauster, Peter Remmen, Marcus Fuchs, Jens Teichmann, Rita Streblow, Dirk Müller
Title:
Modelling long-wave radiation heat exchange for thermal network building simulations at urban scale using Modelica
DOI:
http://dx.doi.org/10.3384/ecp14096125
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Proceedings of the 10th International Modelica Conference; March 10-12; 2014; Lund; Sweden

Author:
Moritz Lauster, Peter Remmen, Marcus Fuchs, Jens Teichmann, Rita Streblow, Dirk Müller
Title:
Modelling long-wave radiation heat exchange for thermal network building simulations at urban scale using Modelica
DOI:
http://dx.doi.org/10.3384/ecp14096125
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