Article | Proceedings of the 7th International Modelica Conference; Como; Italy; 20-22 September 2009 | Standardization of Thermo-Fluid Modeling in Modelica.Fluid

Title:
Standardization of Thermo-Fluid Modeling in Modelica.Fluid
Author:
Rüdiger Franke: ABB AG, Germany Francesco Casella: Politecnico di Milano, Italy Michael Sielemann: DLR Institute for Robotics and Mechatronics, Germany Katrin Proelß: TU Hamburg-Harburg, Germany Martin Otter: DLR Institute for Robotics and Mechatronics, Germany Michael Wetter: LBNL, USA
DOI:
10.3384/ecp09430077
Download:
Full text (pdf)
Year:
2009
Conference:
Proceedings of the 7th International Modelica Conference; Como; Italy; 20-22 September 2009
Issue:
043
Article no.:
013
Pages:
122-131
No. of pages:
10
Publication type:
Abstract and Fulltext
Published:
2009-12-29
ISBN:
978-91-7393-513-5
Series:
Linköping Electronic Conference Proceedings
ISSN (print):
1650-3686
ISSN (online):
1650-3740
Publisher:
Linköping University Electronic Press; Linköpings universitet


This article discusses the Modelica.Fluid library that has been included in the Modelica Standard Library 3.1. Modelica.Fluid provides interfaces and basic components for the device-oriented modeling of onedimensional thermo-fluid flow in networks containing vessels; pipes; fluid machines; valves and fittings.

A unique feature of Modelica.Fluid is that the component equations and the media models as well as pressure loss and heat transfer correlations are decoupled from each other. All components are implemented such that they can be used for media from the Modelica.Media library. This means that an incompressible or compressible medium; a single or a multiple substance medium with one or more phases might be used with one and the same model as long as the modeling assumptions made hold. Furthermore;

trace substances are supported. Modeling assumptions can be configured globally in an outer System object. This covers in particular the initialization; uni- or bi-directional flow; and dynamic or steady-state formulation of mass; energy; and momentum balance. All assumptions can be locally refined for every component.

While Modelica.Fluid contains a reasonable set of component models; the goal of the library is not to provide a comprehensive set of models; but rather to provide interfaces and best practices for the treatment of issues such as connector design and implementation of energy; mass and momentum balances. Applications from various domains are presented.

Keywords: Modelica; thermo-fluid; one dimensional fluid flow; single substance; multi substance; trace substances

Proceedings of the 7th International Modelica Conference; Como; Italy; 20-22 September 2009

Author:
Rüdiger Franke, Francesco Casella, Michael Sielemann, Katrin Proelß, Martin Otter, Michael Wetter
Title:
Standardization of Thermo-Fluid Modeling in Modelica.Fluid
DOI:
10.3384/ecp09430077
References:
[1] H. Elmqvist; H. Tummescheit; M. Otter: Object-Oriented Modeling of Thermo-Fluid Systems; Modelica 2003 Conference; Linköping; November 2003.
www.modelica.org/events/Conference2003/papers/h40_Elmqvist_fluid.pdf [2] F. Casella; M. Otter; K. Proelss; C. Richter; H. Tummescheit: The Modelica Fluid and Media Library for Modeling of Incompressible and Compressible Thermo-Fluid Pipe Networks; Modelica 2006 Conference; Vienna; September 2006. www.modelica.org/events/modelica2006/Proceedings/sessions/Session6b1.pdf
[3] R. Franke; F. Casella; M. Otter; M.Sielemann; H.Elmqvist; S.E. Mattson; H. Olsson: Stream Connectors; Modelica 2009 Conference.
[4] R. Franke; K. Kr√ľger; M. Rode: On-line Optimization of Drum Boiler Startup; Modelica 2003 Conference; Link√∂ping; November 2003.
www.modelica.org/events/Conference2003/papers/h29_Franke.pdf [5] M. G. Gasparo and R. Morandi: Piecewise cubic monotone interpolation with assigned slopes. Computing 46; pages 355-365; 1991. doi: 10.1007/BF02257779
[6] I.E. Idelchik: Handbook of Hydraulic Resistance. Jaico Publishing House; 2005.
[7] Verein Deutscher Ingenieure (1997): VDI Wärmeatlas. Springer Verlag; Ed. 8; 1997.

Proceedings of the 7th International Modelica Conference; Como; Italy; 20-22 September 2009

Author:
Rüdiger Franke, Francesco Casella, Michael Sielemann, Katrin Proelß, Martin Otter, Michael Wetter
Title:
Standardization of Thermo-Fluid Modeling in Modelica.Fluid
DOI:
10.3384/ecp09430077
Note: the following are taken directly from CrossRef
Citations:
  • Fritz Zaversky, Rodrigo Medina, Javier Garc√≠a-Barberena, Marcelino S√°nche & David Astrain (2013). Object-oriented modeling for the transient performance simulation of parabolic trough collectors using molten salt as heat transfer fluid. Solar Energy, 95: 192. DOI: 10.1016/j.solener.2013.05.015
  • F. Zaversky, M.M. Rodr√≠guez-Garc√≠a, J. Garc√≠a-Barberena, M. S√°nche & D. Astrain (2014). Transient Behavior of an Active Indirect Two-tank Thermal Energy Storage System During Changes in Operating Mode ‚Äď An Application of an Experimentally Validated Numerical Model. Energy Procedia, 49: 1078. DOI: 10.1016/j.egypro.2014.03.117
  • Javier Samane & Javier Garcia-Barberena (2014). A model for the transient performance simulation of solar cavity receivers. Solar Energy, 110: 789. DOI: 10.1016/j.solener.2014.10.015