VEPZO - Velocity Propagating Zonal Model for the prediction of airflow pattern and temperature distribution in enclosed spaces

Victor Norrefeldt; Gunnar Grün

Title:

Author:

Victor Norrefeldt: Fraunhofer-Institute for Building Physics, Germany Gunnar Grün: Fraunhofer-Institute for Building Physics, Germany

DOI:

10.3384/ecp12076279

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Full text (pdf)

Year:

2012

Conference:

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

Issue:

076

Article no.:

028

Pages:

279-286

No. of pages:

Publication type:

Abstract and Fulltext

Published:

2012-11-19

ISBN:

978-91-7519-826-2

Series:

Linköping Electronic Conference Proceedings

ISSN (print):

1650-3686

ISSN (online):

1650-3740

Publisher:

Linköping University Electronic Press; Linköpings universitet

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This paper presents the VEPZO-model (VElocity Propagating ZOnal model); a discretized airflow model for indoor spaces implemented in Modelica. The model can be used to predict airflow and temperature distribution in a room. The main feature of the VEPZO model is that each zone has a characteristic velocity depending on entering and leaving airflows. This characteristic velocity is propagated into space ensuring the propagation of driving airflows. The VEPZO model can be interfaced to other models of the Modelica.Standard library. In an application example a displacement ventilation in a twin-aisle aircraft cabin is investigated.

Keywords: zonal model; airflow modeling; Modelica

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

Author:

Victor Norrefeldt, Gunnar Grün

Title:

VEPZO - Velocity Propagating Zonal Model for the prediction of airflow pattern and temperature distribution in enclosed spaces

DOI:

http://dx.doi.org/10.3384/ecp12076279

References:

[1] Wetter; M.; Zuo; W.; Nouidui; T.: Recent developments in the Modelica "Buildings" Library for Building Energy and Control Systems; 8th International Modelica Conference; 20.-22. march 2011; Dresden; Germany

[2] Bonvini; M.; Leva; A.: Object-oriented subzonal room models for energy-related building simulation; 8th International Modelica Conference; 20.-22. march 2011; Dresden; Germany

[3] Wurtz; E.; Nataf; J. M.; Winkelmann; F.: Two- and three-dimensional natural and mixed convection simulation using modular zonal models in buildings; International Journal of Heat and Mass Transfer; Volume 42; pp. 923-940; 1999. doi: 10.1016/S0017-9310(98)00221-X.

[4] Inard; C.; Bouia; H.; Dalicieux; P.: Prediction of air temperature distribution in buildings with a zonal model; Energy and Buildings; Volume 24; pp. 125-132; 1996. doi: 10.1016/0378-7788(95)00969-8.

[5] Norrefeldt; V.; Nouidui; T.; van Treeck; C. et al.: Erstellung eines isothermen; zonalen Modells mit Impulserhaltung; BauSIM 2010; 22.-24. september 2010; Vienna; Austria

[6] Norrefeldt; V.; Grün; G.: Validation of the velocity propagating zonal model – VEPZO; Roomvent 2011; 19.-22. june 2011; Trondheim; Norway

[7] Norrefeldt; V.; Grün; G.; Sedlbauer; K.: VEPZO - Velocity propagating zonal model for the estimation of the airflow pattern and temperature distribution in a confined space; Building and Environment; Volume 48; pp. 183-194; 2012. doi: 10.1016/j.buildenv.2011.09.007.

[8] Fraunhofer IBP: Indoor Climate Systems Flyer; 2012

[9] Wetter; M.; Zuo; W.; Nouidui; T.: Modeling of heat transfer in rooms in the Modelica "Buildings" Library; Building Simulation 2011; 14.-16. november 2011; Sydney; Australia

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

Author:

Victor Norrefeldt, Gunnar Grün

Title:

VEPZO - Velocity Propagating Zonal Model for the prediction of airflow pattern and temperature distribution in enclosed spaces

DOI:

https://doi.org10.3384/ecp12076279

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