Effect of 2D modelling of thermal bridges on the energy performance of buildings - Numerical application on the Matisse apartment

This paper describes the modelling approach used to accurately evaluate the effect of thermal bridges on the energy performance of buildings. The heat transfers in the intersections of walls were initially modelled in Sisley software. These models were then reduced and integrated in Clim 2000. The s imulation results were compared against the models obtained from thermal re gulation values. For standard wall configurations, it was seen that the det ailed modelling of heat transfers provides an additional accuracy of about 5% in terms of the evaluation of the building's heat losses. (C) 2001 Publi shed by Elsevier Science B.V.