Abstract
France is now investigating a number of deep geological formations (clay, granite, salt and schist) for disposal of long half-life radioactive waste, notably vitrified high-level waste (HLW) packages which would be stacked in vertical boreholes extending downward from a network of parallel handling drifts. The design of such a geological repository allows for construction and operating constraints, as well as the temperature rise in the vitrified waste packages and in the host rock. Repository temperatures are calculated using a finite-element code in conjunction with a superposition algorithm. The geometric parameters of the repository are analyzed to optimize the dimensions from a thermal standpoint, notably the borehole pitch in each drift, and the distance between adjacent drifts. Numerical examples are included for a repository in a clay environment, characterized by its relatively low thermal conductivity. The thermal consequences of vertical spacing between stacked waste packages are also discussed. 5 refs., 8 figs.
Girotto, J L;
Chaudon, L;
[1]
Hoorelbeke, J M
[2]
- CEA Centre d`Etudes de la Vallee du Rhone, 30 - Marcoule (France). Dept. des Procedes de Retraitement
- CEA Agence Nationale pour la Gestion des Dechets Radioactifes (ANDRA), 75 - Paris (France)
Citation Formats
Girotto, J L, Chaudon, L, and Hoorelbeke, J M.
Impact of High-Level-Radioactive Wastes thermal output on repository design.
France: N. p.,
1992.
Web.
Girotto, J L, Chaudon, L, & Hoorelbeke, J M.
Impact of High-Level-Radioactive Wastes thermal output on repository design.
France.
Girotto, J L, Chaudon, L, and Hoorelbeke, J M.
1992.
"Impact of High-Level-Radioactive Wastes thermal output on repository design."
France.
@misc{etde_10132176,
title = {Impact of High-Level-Radioactive Wastes thermal output on repository design}
author = {Girotto, J L, Chaudon, L, and Hoorelbeke, J M}
abstractNote = {France is now investigating a number of deep geological formations (clay, granite, salt and schist) for disposal of long half-life radioactive waste, notably vitrified high-level waste (HLW) packages which would be stacked in vertical boreholes extending downward from a network of parallel handling drifts. The design of such a geological repository allows for construction and operating constraints, as well as the temperature rise in the vitrified waste packages and in the host rock. Repository temperatures are calculated using a finite-element code in conjunction with a superposition algorithm. The geometric parameters of the repository are analyzed to optimize the dimensions from a thermal standpoint, notably the borehole pitch in each drift, and the distance between adjacent drifts. Numerical examples are included for a repository in a clay environment, characterized by its relatively low thermal conductivity. The thermal consequences of vertical spacing between stacked waste packages are also discussed. 5 refs., 8 figs.}
place = {France}
year = {1992}
month = {Dec}
}
title = {Impact of High-Level-Radioactive Wastes thermal output on repository design}
author = {Girotto, J L, Chaudon, L, and Hoorelbeke, J M}
abstractNote = {France is now investigating a number of deep geological formations (clay, granite, salt and schist) for disposal of long half-life radioactive waste, notably vitrified high-level waste (HLW) packages which would be stacked in vertical boreholes extending downward from a network of parallel handling drifts. The design of such a geological repository allows for construction and operating constraints, as well as the temperature rise in the vitrified waste packages and in the host rock. Repository temperatures are calculated using a finite-element code in conjunction with a superposition algorithm. The geometric parameters of the repository are analyzed to optimize the dimensions from a thermal standpoint, notably the borehole pitch in each drift, and the distance between adjacent drifts. Numerical examples are included for a repository in a clay environment, characterized by its relatively low thermal conductivity. The thermal consequences of vertical spacing between stacked waste packages are also discussed. 5 refs., 8 figs.}
place = {France}
year = {1992}
month = {Dec}
}