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Geoscientific Model Development An interactive open-access journal of the European Geosciences Union
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Volume 5, issue 2 | Copyright

Special issue: The externalised surface model SURFEX

Geosci. Model Dev., 5, 433-448, 2012
https://doi.org/10.5194/gmd-5-433-2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.

Model description paper 29 Mar 2012

Model description paper | 29 Mar 2012

Development and evaluation of a building energy model integrated in the TEB scheme

B. Bueno1,2, G. Pigeon1, L. K. Norford2, K. Zibouche3, and C. Marchadier1 B. Bueno et al.
  • 1CNRM-GAME, URA1357, CNRS – Météo France, Toulouse, France
  • 2Massachusetts Institute of Technology, Cambridge, USA
  • 3Université Paris-Est, Centre Scientifique et Technique du Bâtiment (CSTB), France

Abstract. The use of air-conditioning systems is expected to increase as a consequence of global-scale and urban-scale climate warming. In order to represent future scenarios of urban climate and building energy consumption, the Town Energy Balance (TEB) scheme must be improved. This paper presents a new building energy model (BEM) that has been integrated in the TEB scheme. BEM-TEB makes it possible to represent the energy effects of buildings and building systems on the urban climate and to estimate the building energy consumption at city scale (~10 km) with a resolution of a neighbourhood (~100 m). The physical and geometric definition of buildings in BEM has been intentionally kept as simple as possible, while maintaining the required features of a comprehensive building energy model. The model considers a single thermal zone, where the thermal inertia of building materials associated with multiple levels is represented by a generic thermal mass. The model accounts for heat gains due to transmitted solar radiation, heat conduction through the enclosure, infiltration, ventilation, and internal heat gains. BEM allows for previously unavailable sophistication in the modelling of air-conditioning systems. It accounts for the dependence of the system capacity and efficiency on indoor and outdoor air temperatures and solves the dehumidification of the air passing through the system. Furthermore, BEM includes specific models for passive systems, such as window shadowing devices and natural ventilation. BEM has satisfactorily passed different evaluation processes, including testing its modelling assumptions, verifying that the chosen equations are solved correctly, and validating the model with field data.

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