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Small scale model and underground laboratory study of engineered barrier thermal behaviour; Etude, en maquette a echelle reduite et en laboratoire souterrain, du comportement thermique des barrieres ouvragees

Technical Report:

Abstract

This is the final report of the contract CCE FI1W/0061, which had the objective of studying the thermal behaviour of the engineered barrier having the selected French clay Fo-Ca (natural calcic smectite) as its major constituent. After being installed this barrier was subjected simultaneously to the heat flux dissipated by the container and to a possible rehydration by contact with the host medium. It consists of three parts. The first part is devoted to R and D studies concerning detectors suitable for the point measurement of the water concentration. Among the techniques that can be envisaged, capacitor methods, which are very temperature sensitive, would require a great deal of effort to be satisfactory. On the other hand, the water concentration can, in principle, be derived from the measurement of the thermal conductivity in the transient regime. Although the carrying out of this measurement is somewhat critical, it can give good results under certain conditions. The second part reports experiments carried out in the laboratory concerning both the study of heat transfer during the so-called dry phase of the disposal (without any water being supplied externally) and the study of the phenomenon of fissuration. Finally, the third part describes the in  More>>
Authors:
Dardaine, M; Beziat, A; Gatabin, C; Lefevre, I; Plas, F; [1]  Fontan, N; [2]  Moyne, C [3] 
  1. CEA Centre d`Etudes de Fontenay-aux-Roses, 92 (France)
  2. Ecole Nationale Superieure des Mines, 54 - Nancy (FR)
  3. Lemta, 54 - Nancy (FR)
Publication Date:
Dec 31, 1991
Product Type:
Technical Report
Report Number:
EUR-13167
Reference Number:
SCA: 052002; 540250; 580000; PA: FRD-92:000047; SN: 92000658009
Resource Relation:
Other Information: PBD: 1991
Subject:
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; 54 ENVIRONMENTAL SCIENCES; 58 GEOSCIENCES; RADIOACTIVE WASTE DISPOSAL; CLAYS; THERMAL CONDUCTIVITY; HIGH-LEVEL RADIOACTIVE WASTES; BENCH-SCALE EXPERIMENTS; FIELD TESTS; BELGIUM; UNDERGROUND FACILITIES; HYDRAULIC CONDUCTIVITY; HEAT TRANSFER; TEMPERATURE GRADIENTS; THERMAL STRESSES; BACKFILLING; 052002; 540250; 580000; WASTE DISPOSAL AND STORAGE; SITE RESOURCE AND USE STUDIES; GEOSCIENCES
OSTI ID:
10116519
Research Organizations:
Commission of the European Communities, Luxembourg (Luxembourg)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
Other: ON: TI92767105; CNN: Contract FI1W/0061-F; TRN: FR9200047
Availability:
OSTI; NTIS (US Sales Only)
Submitting Site:
FRN
Size:
167 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Dardaine, M, Beziat, A, Gatabin, C, Lefevre, I, Plas, F, Fontan, N, and Moyne, C. Small scale model and underground laboratory study of engineered barrier thermal behaviour; Etude, en maquette a echelle reduite et en laboratoire souterrain, du comportement thermique des barrieres ouvragees. France: N. p., 1991. Web.
Dardaine, M, Beziat, A, Gatabin, C, Lefevre, I, Plas, F, Fontan, N, & Moyne, C. Small scale model and underground laboratory study of engineered barrier thermal behaviour; Etude, en maquette a echelle reduite et en laboratoire souterrain, du comportement thermique des barrieres ouvragees. France.
Dardaine, M, Beziat, A, Gatabin, C, Lefevre, I, Plas, F, Fontan, N, and Moyne, C. 1991. "Small scale model and underground laboratory study of engineered barrier thermal behaviour; Etude, en maquette a echelle reduite et en laboratoire souterrain, du comportement thermique des barrieres ouvragees." France.
@misc{etde_10116519,
title = {Small scale model and underground laboratory study of engineered barrier thermal behaviour; Etude, en maquette a echelle reduite et en laboratoire souterrain, du comportement thermique des barrieres ouvragees}
author = {Dardaine, M, Beziat, A, Gatabin, C, Lefevre, I, Plas, F, Fontan, N, and Moyne, C}
abstractNote = {This is the final report of the contract CCE FI1W/0061, which had the objective of studying the thermal behaviour of the engineered barrier having the selected French clay Fo-Ca (natural calcic smectite) as its major constituent. After being installed this barrier was subjected simultaneously to the heat flux dissipated by the container and to a possible rehydration by contact with the host medium. It consists of three parts. The first part is devoted to R and D studies concerning detectors suitable for the point measurement of the water concentration. Among the techniques that can be envisaged, capacitor methods, which are very temperature sensitive, would require a great deal of effort to be satisfactory. On the other hand, the water concentration can, in principle, be derived from the measurement of the thermal conductivity in the transient regime. Although the carrying out of this measurement is somewhat critical, it can give good results under certain conditions. The second part reports experiments carried out in the laboratory concerning both the study of heat transfer during the so-called dry phase of the disposal (without any water being supplied externally) and the study of the phenomenon of fissuration. Finally, the third part describes the in situ experiment BACCHUS, carried out in the underground test facility at Mol (Belgium), in collaboration with the CEN/SCK. In the course of the five months of the thermal phase of this experiment a large variation in the amplitude of the temperature gradients was recorded, which may be explained, on one hand, by the convergence of the medium and, on the other hand, by a much more rapid rehydration than that predicted.}
place = {France}
year = {1991}
month = {Dec}
}