Numerical Simulation of Earth-Contact Heat Transfer

2011 ◽  
Vol 243-249 ◽  
pp. 6206-6211
Author(s):  
Kang Jie Shao ◽  
Stephen Rees ◽  
Peter Cleall

A two-dimensional simulation of earth-contact heat transfer by applying the finite element method is presented. Relevant thermal properties for each material type are determined and employed in the numerical model. Initial conditions and boundary conditions are carefully defined to improve the accuracy of this numerical investigation. The results demonstrate rational connection between the measured data set and simulated result. This research provides a useful contribution and reference to the earth-contact simulation.

Author(s):  
S Zoras ◽  
M Davies ◽  
M H Adjali

This paper reports a new simulation method for the prediction of earth-contact heat transfer. The new method claims to be fast, accurate and flexible by means of incorporating elements of the response factor method into a numerical method based on the finite volume technique. More specifically, the development of the method is presented and implemented for a general multi-room structure. Work undertaken so far shows that the current combination of the finite volume and response factor techniques is at its most useful when the new tool is used in a parametric analysis process. Initially, a ‘pre-processing’ procedure is utilized to generate a certain number of simulated hours for use as a time series by the response factor technique in the second stage of the method. Assuming that the earth-contact parameters then remain constant, every subsequent simulation in which the non-earth-contact parameters are varied can incorporate the earth-contact heat transfer efficiently, by the use of the response factor technique, which takes a few seconds. Very good agreement has been achieved between a three-dimensional finite volume model and the present method, for a typical multi-room slab-on-ground floor, coupled with dramatically improved run times which is essential for the rapid parametric analysis of a structure.


1997 ◽  
Vol 28 (4-6) ◽  
pp. 393-397
Author(s):  
N. Yu. Koloskova ◽  
V. V. Dubrovskaya ◽  
V. V. Orlyanskii

1984 ◽  
Vol 106 (3) ◽  
pp. 613-619 ◽  
Author(s):  
M. M. Razzaque ◽  
J. R. Howell ◽  
D. E. Klein

A numerical solution of the exact equations of coupled radiative/conductive heat transfer and temperature distribution inside a medium, and of the heat flux distribution at all the gray walls of a two-dimensional rectangular enclosure with the medium having uniform absorbing/emitting properties, using the finite element method, is presented. The medium can also have distributed energy sources. Comparison is made to the results of the P-3 approximation method.


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