A numerical simulation of measured transient heat transfer through a concrete ground floor slab and underlying substrata

This paper presents the results of a numerical simulation of measured heat losses from a real building. In particular, the thermal response of a concrete ground floor slab and the underlying foundation soils has been analysed and the results calibrated against data acquired from a comprehensive long...

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Bibliographic Details
Published in:International journal of numerical methods for heat & fluid flow 1995-10, Vol.5 (8), p.669-683
Main Authors: Rees, S.W, Lloyd, R.M, Thomas, H.R
Format: Article
Language:English
Subjects:
Buildings
Computer simulation
Concrete
Concrete floors
Concrete slabs
Construction
Experiments
Finite difference method
Finite element analysis
Finite element method
Floors
Foundations
Heat conductivity
Heat losses
Heat transfer
Heating
Mathematical models
Moisture content
Monitoring
Seasonal variations
Sensors
Simulation
Soils
Studies
Temperature
Temperature distribution
Thermodynamics
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Summary:This paper presents the results of a numerical simulation of measured heat losses from a real building. In particular, the thermal response of a concrete ground floor slab and the underlying foundation soils has been analysed and the results calibrated against data acquired from a comprehensive long term in-situ monitoring experiment. A numerical solution of a heat conduction model is obtained by use of the finite element method. Finite differences are used to accommodate the time varying nature of the problem. The model has been applied to the simulation of transient one-dimensional behaviour. Diurnal and seasonal variations in temperature are considered. Good correlation between predicted and measured thermal response has been achieved. It is, therefore, claimed that the modelling approach adopted is capable of representing real in-situ behaviour.
ISSN:0961-5539
1758-6585
DOI:10.1108/EUM0000000004083