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Evaluation of Thermal Conductivity of Backfill Material

Published online by Cambridge University Press:  28 February 2011

D.M. Xu ,
A.M.O. Mohamed ,
R.N. Yong  and
S.C.H. Cheung
D.M. Xu
Affiliation:
Geotechnical Research Centre, McGill University, 817 Sherbrooke St., W., Montreal, Quebec, Canada H3A 2K6
A.M.O. Mohamed
Affiliation:
Geotechnical Research Centre, McGill University, 817 Sherbrooke St., W., Montreal, Quebec, Canada H3A 2K6
R.N. Yong
Affiliation:
Geotechnical Research Centre, McGill University, 817 Sherbrooke St., W., Montreal, Quebec, Canada H3A 2K6
S.C.H. Cheung
Affiliation:
AECL Research Whiteshell Laboratories, Pinawa, Manitoba, Canada R0E 1L0
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Abstract

A series of tests have been performed at the Geotechnical Research Centre on backfill material under imposed temperature gradients. It has been demonstrated that the water content distribution during the transient process does not affect the temperature distribution. The Trial Function Technique (TFT) has been applied to calculate the thermal conductivity of the backfill material. Using these values and the proposed method of solution, the temperature profiles have been calculated. The comparison between the theoretically predicted and the experimentally measured temperature profiles shows good agreement except in the vicinity of the heating boundary, where a thin thermal boundary layer exists. The vaporization process in this thin layer contributes to the turbulent effect that can be modeled by using a thermal shock condition.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 212: Symposium P – Scientific Basis for Nuclear Waste Management XIV , 1990 , 507
Copyright
Copyright © Materials Research Society 1991

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References

REFERENCES

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