Object-Oriented Library of Switching Moving Boundary Models for Two-phase Flow Evaporators and Condensers

Javier Bonilla
Centro de Investigaciones Energåticas MedioAmbientales y Tecnológicas (CIEMAT), Plataforma Solar de Almería (PSA), Almería, Spain

Luis J. Yebra
Centro de Investigaciones Energåticas MedioAmbientales y Tecnológicas (CIEMAT), Plataforma Solar de Almería (PSA), Almería, Spain

Sebastián Dormido
National Distance Education University (UNED), Department of Computer Science and Automatic Control, Madrid, Spain

François E. Cellier
Swiss Federal Institute of Technology (ETH Zurich), Department of Computer Science, Zurich, Switzerland

Ladda ner artikelhttp://dx.doi.org/10.3384/ecp1207671

Ingår i: Proceedings of the 9th International MODELICA Conference; September 3-5; 2012; Munich; Germany

Linköping Electronic Conference Proceedings 76:7, s. 71-80

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Publicerad: 2012-11-19

ISBN: 978-91-7519-826-2

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


This paper discusses a Modelica library of switching moving boundary models for two-phase flow heat exchangers: evaporators and condensers. The equation-based object-oriented modeling paradigm has been considered by means of designing basic models applying the conservation laws for each flow state: subcooled liquid; two-phase flow and superheated vapor. Evaporator and condenser models have been developed by interconnecting the basic models and including mechanisms to switch between different configurations: general; flooded and dry evaporators and condensers. Finally; simulation results are presented by an integrity and stability test case.


moving boundary model; switching; two-phase flow; evaporator; condenser


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