Temperatures in and under a slab-on-ground floor: two- and three-dimensional numerical simulations and comparison with experimental data

摘要

This paper presents the results of a numrical simulation of measrued temperatures in a ground floor slab and the soil beneath it. Two- and three-dimensional calculations (2D and 3D) are performed using a widely utilised whole building thermal simulation program. A multi-dimensional numerical conductive heat transfer module has been added to this program and this current work is intended to show (i) whether the model is capable of successfully modelling the system and (ii) whether the use of 2D analysis is justified or if a 3D simulation is more appropriate for this type of slab.