Abstract
The irradiated fuel treatment plant at Marcoule began treating rods from the pile G 1 in July 1958. These six years experience of the plant in operation have led to the confirmation or revision of the original ideas concerning the process as well as the technology or methods of exploitation. The process as a whole has suffered little modification, the performances having proved better than originally foreseen; the only alterations made were justified by greater simplicity of operation, better nuclear security (criticality) or for technological reasons. The processes of plutonium reduction from valency IV to valency III by uranium IV, and of concentration of fission product solutions in the presence of formaldehyde, have always given complete satisfaction. The initial concept of direct maintenance of the installations has been justified by experience. Certain maintenance jobs, originally considered impossible after the start of operations, have proved feasible and have been carried out under acceptable conditions; a number of examples are given. From experience it has been possible to define optimal conditions for the design of these installations such as to provide a maximum in robustness and ease of maintenance. The advantages of continuously-operating equipment have been shown. Certain installations have been altered
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Jouannaud, C
[1]
- CEA Marcoule, Centre de Production de Plutonium, 30 (France)
Citation Formats
Jouannaud, C.
Six years working experience of the Marcoule plant for treatment of irradiated fuel; Experience de 6 annees de fonctionnement de l'usine de retraitement de Marcoule.
France: N. p.,
1964.
Web.
Jouannaud, C.
Six years working experience of the Marcoule plant for treatment of irradiated fuel; Experience de 6 annees de fonctionnement de l'usine de retraitement de Marcoule.
France.
Jouannaud, C.
1964.
"Six years working experience of the Marcoule plant for treatment of irradiated fuel; Experience de 6 annees de fonctionnement de l'usine de retraitement de Marcoule."
France.
@misc{etde_20668391,
title = {Six years working experience of the Marcoule plant for treatment of irradiated fuel; Experience de 6 annees de fonctionnement de l'usine de retraitement de Marcoule}
author = {Jouannaud, C}
abstractNote = {The irradiated fuel treatment plant at Marcoule began treating rods from the pile G 1 in July 1958. These six years experience of the plant in operation have led to the confirmation or revision of the original ideas concerning the process as well as the technology or methods of exploitation. The process as a whole has suffered little modification, the performances having proved better than originally foreseen; the only alterations made were justified by greater simplicity of operation, better nuclear security (criticality) or for technological reasons. The processes of plutonium reduction from valency IV to valency III by uranium IV, and of concentration of fission product solutions in the presence of formaldehyde, have always given complete satisfaction. The initial concept of direct maintenance of the installations has been justified by experience. Certain maintenance jobs, originally considered impossible after the start of operations, have proved feasible and have been carried out under acceptable conditions; a number of examples are given. From experience it has been possible to define optimal conditions for the design of these installations such as to provide a maximum in robustness and ease of maintenance. The advantages of continuously-operating equipment have been shown. Certain installations have been altered in accordance with these new ideas. Analytical checking in the laboratory has been profoundly modified, and the plans adopted are such that complete safety in work on radioactive solutions is compatible with a very good working speed. Experience has also shown the advantages of having a group on the spot to carry out short-term applied studies. Finally, a strict working discipline and excellent collaboration with the radiation protection service have enabled us to reach the end of these six years, during some of which the exploitation was intensive, without irradiation accident. (authors) [French] L'usine de traitement des combustibles irradies de Marcoule a commence a traiter les barreaux de la pile G.1 en Juillet 1958. Au cours des six annees d'exploitation, nous avons ete amenes a confirmer ou reviser les conceptions initiales tant sur le procede que sur la technologie ou les methodes d'exploitation. Dans son ensemble, le procede a subi peu de modification, les performances ayant depasse les previsions initiales - les seules modifications apportees ont ete justifiees par une plus grande simplicite d'exploitation, une meilleure securite nucleaire (criticite) ou des raisons technologiques. Le procede de reduction du plutonium de la valence IV a la valence III par l'uranium IV a toujours donne toute satisfaction, de meme que la concentration des solutions de produits de fission en presence de formaldehyde. La philosophie initiale des installations a entretien direct a recu la sanction de l'experience, certains travaux d'entretien, juges initialement impossibles apres mise en actif, ont pu etre effectues dans des conditions acceptables, un certain nombre d'exemples sont donnes - l'experience a permis de definir une doctrine sur la conception optimale de ces installations de facon a ameliorer leur robustesse et faciliter leur entretien - l'interet des installations a fonctionnement continu a ete mis en evidence. Certaines installations ont ete modifiees en fonction de ces idees nouvelles. Le controle analytique en laboratoire a subi des modifications profondes, et les conceptions adoptees ont permis de rendre le travail en toute securite sur les solutions radioactives compatible avec un rythme de travail intense - l'experience a egalement demontre l'utilite d'avoir sur place, un groupe pour les etudes appliquees a court terme. Enfin, une rigoureuse discipline de travail et une excellente collaboration avec le service de protection contre les radiations ont permis de franchir ces six annees, dont certaines d'exploitation intensive, sans accidents d'irradiation. (auteurs)}
place = {France}
year = {1964}
month = {Jul}
}
title = {Six years working experience of the Marcoule plant for treatment of irradiated fuel; Experience de 6 annees de fonctionnement de l'usine de retraitement de Marcoule}
author = {Jouannaud, C}
abstractNote = {The irradiated fuel treatment plant at Marcoule began treating rods from the pile G 1 in July 1958. These six years experience of the plant in operation have led to the confirmation or revision of the original ideas concerning the process as well as the technology or methods of exploitation. The process as a whole has suffered little modification, the performances having proved better than originally foreseen; the only alterations made were justified by greater simplicity of operation, better nuclear security (criticality) or for technological reasons. The processes of plutonium reduction from valency IV to valency III by uranium IV, and of concentration of fission product solutions in the presence of formaldehyde, have always given complete satisfaction. The initial concept of direct maintenance of the installations has been justified by experience. Certain maintenance jobs, originally considered impossible after the start of operations, have proved feasible and have been carried out under acceptable conditions; a number of examples are given. From experience it has been possible to define optimal conditions for the design of these installations such as to provide a maximum in robustness and ease of maintenance. The advantages of continuously-operating equipment have been shown. Certain installations have been altered in accordance with these new ideas. Analytical checking in the laboratory has been profoundly modified, and the plans adopted are such that complete safety in work on radioactive solutions is compatible with a very good working speed. Experience has also shown the advantages of having a group on the spot to carry out short-term applied studies. Finally, a strict working discipline and excellent collaboration with the radiation protection service have enabled us to reach the end of these six years, during some of which the exploitation was intensive, without irradiation accident. (authors) [French] L'usine de traitement des combustibles irradies de Marcoule a commence a traiter les barreaux de la pile G.1 en Juillet 1958. Au cours des six annees d'exploitation, nous avons ete amenes a confirmer ou reviser les conceptions initiales tant sur le procede que sur la technologie ou les methodes d'exploitation. Dans son ensemble, le procede a subi peu de modification, les performances ayant depasse les previsions initiales - les seules modifications apportees ont ete justifiees par une plus grande simplicite d'exploitation, une meilleure securite nucleaire (criticite) ou des raisons technologiques. Le procede de reduction du plutonium de la valence IV a la valence III par l'uranium IV a toujours donne toute satisfaction, de meme que la concentration des solutions de produits de fission en presence de formaldehyde. La philosophie initiale des installations a entretien direct a recu la sanction de l'experience, certains travaux d'entretien, juges initialement impossibles apres mise en actif, ont pu etre effectues dans des conditions acceptables, un certain nombre d'exemples sont donnes - l'experience a permis de definir une doctrine sur la conception optimale de ces installations de facon a ameliorer leur robustesse et faciliter leur entretien - l'interet des installations a fonctionnement continu a ete mis en evidence. Certaines installations ont ete modifiees en fonction de ces idees nouvelles. Le controle analytique en laboratoire a subi des modifications profondes, et les conceptions adoptees ont permis de rendre le travail en toute securite sur les solutions radioactives compatible avec un rythme de travail intense - l'experience a egalement demontre l'utilite d'avoir sur place, un groupe pour les etudes appliquees a court terme. Enfin, une rigoureuse discipline de travail et une excellente collaboration avec le service de protection contre les radiations ont permis de franchir ces six annees, dont certaines d'exploitation intensive, sans accidents d'irradiation. (auteurs)}
place = {France}
year = {1964}
month = {Jul}
}