CONSIDERATIONS FOR THE DEVELOPMENT OF A DEVICE FOR THE DECOMMISSIONING OF THE HORIZONTAL FUEL CHANNELS IN THE CANDU 6 NUCLEAR REACTOR. PART 6 - PRESENTATION OF THE DECOMMISSIONING DEVICE
The objective of this paper is to present a possible solution for the designing of a device for the decommissioning of the horizontal fuel channels in the CANDU 6 nuclear reactor. The decommissioning activities are dismantling, demolition, controlled removal of equipment, components, conventional...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Academica Brancusi
2015-05-01
|
| Series: | Fiabilitate şi Durabilitate |
| Subjects: | |
| Online Access: | http://www.utgjiu.ro/rev_mec/mecanica/pdf/2015-01/24_Gabi%20ROSCA%20FARTAT,%20Constantin%20POPESCU,%20Constantin%20D.%20STANESCU%20-%20CONSIDERATIONS%20FOR%20THE%20DEVELOPMENT%20OF%20A%20DEVICE%20FOR%20THE%20DECOMMISSIONING%20OF%20THE%20HORIZONTAL%20FUEL%20CHANNELS%20IN%20THE%20CANDU%206%20NUCLEAR%20REACTOR.%20PART%206.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850198230858465280 |
|---|---|
| author | Gabi ROSCA FARTAT Constantin POPESCU Constantin D. STANESCU |
| author_facet | Gabi ROSCA FARTAT Constantin POPESCU Constantin D. STANESCU |
| author_sort | Gabi ROSCA FARTAT |
| collection | DOAJ |
| description | The objective of this paper is to present a possible solution for the designing of a device for
the decommissioning of the horizontal fuel channels in the CANDU 6 nuclear reactor. The
decommissioning activities are dismantling, demolition, controlled removal of equipment, components,
conventional or hazardous waste (radioactive, toxic) in compliance with the international basic safety
standards on radiation protection. One as the most important operation in the final phase of the nuclear
reactor dismantling is the decommissioning of fuel channels. For the fuel channels decommissioning
should be taken into account the detailed description of the fuel channel and its components, the
installation documents history, adequate radiological criteria for decommissioning guidance, safety and
environmental impact assessment, including radiological and non-radiological analysis of the risks that
can occur for workers, public and environment, the description of the proposed program for
decommissioning the fuel channel and its components, the description of the quality assurance program
and of the monitoring program, the equipments and methods used to verify the compliance with the
decommissioning criteria, the planning of performing the final radiological assessment at the end of the
fuel channel decommissioning. These will include also, a description of the proposed radiation protection
procedures to be used during decommissioning. The dismantling of the fuel channel is performed by one
device which shall provide radiation protection during the stages of decommissioning, ensuring
radiation protection of the workers. The device shall be designed according to the radiation protection
procedures. The decommissioning device assembly of the fuel channel components is composed of the
device itself and moving platform support for coupling of the selected channel to be dismantled. The fuel
channel decommissioning device is an autonomous device designed for dismantling and extraction of the
channel closure plug and shield plug, extraction of the end fitting, cutting and extraction of the pressure
tube. The fuel channel decommissioning device consists of following major components: coupling and
locking fuel channel module, assembly valve for access to the fuel channel, storage tubes assembly for
extracted components, handling elements assembly, cutting and extraction device and housing device.
The design of the device and platform support is achieved according to the particular features of the fuel
channel components to be dismantled in the program of nuclear reactor decommissioning according to
all the safety aspects and environmental protection during the activities, resulting from the
decommissioning plan developed. |
| format | Article |
| id | doaj-art-76f9475470bb498f9249f0dbdc360dbf |
| institution | OA Journals |
| issn | 1844-640X 1844-640X |
| language | English |
| publishDate | 2015-05-01 |
| publisher | Academica Brancusi |
| record_format | Article |
| series | Fiabilitate şi Durabilitate |
| spelling | doaj-art-76f9475470bb498f9249f0dbdc360dbf2025-08-20T02:12:55ZengAcademica BrancusiFiabilitate şi Durabilitate1844-640X1844-640X2015-05-01115165171CONSIDERATIONS FOR THE DEVELOPMENT OF A DEVICE FOR THE DECOMMISSIONING OF THE HORIZONTAL FUEL CHANNELS IN THE CANDU 6 NUCLEAR REACTOR. PART 6 - PRESENTATION OF THE DECOMMISSIONING DEVICEGabi ROSCA FARTAT0Constantin POPESCU1Constantin D. STANESCU2Polytechnic University of BucharestPolytechnic University of BucharestPolytechnic University of BucharestThe objective of this paper is to present a possible solution for the designing of a device for the decommissioning of the horizontal fuel channels in the CANDU 6 nuclear reactor. The decommissioning activities are dismantling, demolition, controlled removal of equipment, components, conventional or hazardous waste (radioactive, toxic) in compliance with the international basic safety standards on radiation protection. One as the most important operation in the final phase of the nuclear reactor dismantling is the decommissioning of fuel channels. For the fuel channels decommissioning should be taken into account the detailed description of the fuel channel and its components, the installation documents history, adequate radiological criteria for decommissioning guidance, safety and environmental impact assessment, including radiological and non-radiological analysis of the risks that can occur for workers, public and environment, the description of the proposed program for decommissioning the fuel channel and its components, the description of the quality assurance program and of the monitoring program, the equipments and methods used to verify the compliance with the decommissioning criteria, the planning of performing the final radiological assessment at the end of the fuel channel decommissioning. These will include also, a description of the proposed radiation protection procedures to be used during decommissioning. The dismantling of the fuel channel is performed by one device which shall provide radiation protection during the stages of decommissioning, ensuring radiation protection of the workers. The device shall be designed according to the radiation protection procedures. The decommissioning device assembly of the fuel channel components is composed of the device itself and moving platform support for coupling of the selected channel to be dismantled. The fuel channel decommissioning device is an autonomous device designed for dismantling and extraction of the channel closure plug and shield plug, extraction of the end fitting, cutting and extraction of the pressure tube. The fuel channel decommissioning device consists of following major components: coupling and locking fuel channel module, assembly valve for access to the fuel channel, storage tubes assembly for extracted components, handling elements assembly, cutting and extraction device and housing device. The design of the device and platform support is achieved according to the particular features of the fuel channel components to be dismantled in the program of nuclear reactor decommissioning according to all the safety aspects and environmental protection during the activities, resulting from the decommissioning plan developed.http://www.utgjiu.ro/rev_mec/mecanica/pdf/2015-01/24_Gabi%20ROSCA%20FARTAT,%20Constantin%20POPESCU,%20Constantin%20D.%20STANESCU%20-%20CONSIDERATIONS%20FOR%20THE%20DEVELOPMENT%20OF%20A%20DEVICE%20FOR%20THE%20DECOMMISSIONING%20OF%20THE%20HORIZONTAL%20FUEL%20CHANNELS%20IN%20THE%20CANDU%206%20NUCLEAR%20REACTOR.%20PART%206.pdfCandu reactordevicedecommissioningdismantlingradiation protectionfuel channel |
| spellingShingle | Gabi ROSCA FARTAT Constantin POPESCU Constantin D. STANESCU CONSIDERATIONS FOR THE DEVELOPMENT OF A DEVICE FOR THE DECOMMISSIONING OF THE HORIZONTAL FUEL CHANNELS IN THE CANDU 6 NUCLEAR REACTOR. PART 6 - PRESENTATION OF THE DECOMMISSIONING DEVICE Fiabilitate şi Durabilitate Candu reactor device decommissioning dismantling radiation protection fuel channel |
| title | CONSIDERATIONS FOR THE DEVELOPMENT OF A DEVICE FOR THE DECOMMISSIONING OF THE HORIZONTAL FUEL CHANNELS IN THE CANDU 6 NUCLEAR REACTOR. PART 6 - PRESENTATION OF THE DECOMMISSIONING DEVICE |
| title_full | CONSIDERATIONS FOR THE DEVELOPMENT OF A DEVICE FOR THE DECOMMISSIONING OF THE HORIZONTAL FUEL CHANNELS IN THE CANDU 6 NUCLEAR REACTOR. PART 6 - PRESENTATION OF THE DECOMMISSIONING DEVICE |
| title_fullStr | CONSIDERATIONS FOR THE DEVELOPMENT OF A DEVICE FOR THE DECOMMISSIONING OF THE HORIZONTAL FUEL CHANNELS IN THE CANDU 6 NUCLEAR REACTOR. PART 6 - PRESENTATION OF THE DECOMMISSIONING DEVICE |
| title_full_unstemmed | CONSIDERATIONS FOR THE DEVELOPMENT OF A DEVICE FOR THE DECOMMISSIONING OF THE HORIZONTAL FUEL CHANNELS IN THE CANDU 6 NUCLEAR REACTOR. PART 6 - PRESENTATION OF THE DECOMMISSIONING DEVICE |
| title_short | CONSIDERATIONS FOR THE DEVELOPMENT OF A DEVICE FOR THE DECOMMISSIONING OF THE HORIZONTAL FUEL CHANNELS IN THE CANDU 6 NUCLEAR REACTOR. PART 6 - PRESENTATION OF THE DECOMMISSIONING DEVICE |
| title_sort | considerations for the development of a device for the decommissioning of the horizontal fuel channels in the candu 6 nuclear reactor part 6 presentation of the decommissioning device |
| topic | Candu reactor device decommissioning dismantling radiation protection fuel channel |
| url | http://www.utgjiu.ro/rev_mec/mecanica/pdf/2015-01/24_Gabi%20ROSCA%20FARTAT,%20Constantin%20POPESCU,%20Constantin%20D.%20STANESCU%20-%20CONSIDERATIONS%20FOR%20THE%20DEVELOPMENT%20OF%20A%20DEVICE%20FOR%20THE%20DECOMMISSIONING%20OF%20THE%20HORIZONTAL%20FUEL%20CHANNELS%20IN%20THE%20CANDU%206%20NUCLEAR%20REACTOR.%20PART%206.pdf |
| work_keys_str_mv | AT gabiroscafartat considerationsforthedevelopmentofadeviceforthedecommissioningofthehorizontalfuelchannelsinthecandu6nuclearreactorpart6presentationofthedecommissioningdevice AT constantinpopescu considerationsforthedevelopmentofadeviceforthedecommissioningofthehorizontalfuelchannelsinthecandu6nuclearreactorpart6presentationofthedecommissioningdevice AT constantindstanescu considerationsforthedevelopmentofadeviceforthedecommissioningofthehorizontalfuelchannelsinthecandu6nuclearreactorpart6presentationofthedecommissioningdevice |