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DISMANTLING OF BRENNILIS NPP – FRANCE specific EQUIPMENT

DISMANTLING OF BRENNILIS NPP – FRANCE specific EQUIPMENT. DISMANTLING OF BRENNILIS NPP – FRANCE specific EQUIPMENT. BRENNILIS REACTOR DECOMMISSIONING SCOPE OF WORK MAIN REQUIREMENTS MAIN DESIGN PROBLEMS DESIGN SOLUTIONS. Brennilis reactor.

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DISMANTLING OF BRENNILIS NPP – FRANCE specific EQUIPMENT

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  1. DISMANTLING OF BRENNILIS NPP– FRANCEspecific EQUIPMENT

  2. DISMANTLING OF BRENNILISNPP – FRANCEspecific EQUIPMENT • BRENNILIS REACTOR • DECOMMISSIONING • SCOPE OF WORK • MAIN REQUIREMENTS • MAIN DESIGN PROBLEMS • DESIGN SOLUTIONS

  3. Brennilis reactor • Brennilis reactor is an experimental reactor moderated with heavy water and cooled with carbon dioxide (HWGCR). The reactor was to have a power of 70 MW. • The startup occurred in 1967. • In 1985 the reactor was decommissioned.

  4. decommissioning Brennilis marks the first dismantling of a complete nuclear power station in France. EDF and CEA announced intention to make a transparent process so that it can be used as a model for dismantling of other plants later. The process is divided into 3 phases: Phase 1 This phase was launched in 1985, similar to a refueling outage the fuel is moved to the spent fuel pool, but new fuel is not loaded, and the fuel on site is evacuated. Phase 2 Phase 2 started in 1997, consisting of: • decontamination and disassembling of the buildings except for the reactor itself. • evacuation of the nuclear waste. In 2005 phase 2 officially finished. Phase 3 Phase 3 which is currently underway, consist of: • dismantling of the heat exchangers. • dismantling of the Reactor pressure vessel (RPV) – ONET TECHNOLOGIES leader of consortium ONET TECHNOLOGIES/NUKEMTECHNOLOGIES. • demolition of the containment (Reactor building).

  5. Scope of work The equipment is designed for operation in a chamber for treatment of radioactive waste (CDI) and will be installed in place in the Brennilis nuclear power plant in France. The equipment will perform specific operations and is designed to comply with the requirements of individual technical specifications prepared by consortiumGМЕ(ONET TECHNOLOGIES/NUKEMTECHNOLOGIES).

  6. Scope of work The scope of work assigned to PMC by ONET TECHNOLOGIES is the executive studies, manufacturing, factory acceptance tests and delivery on site for following equipment: • Elevator; • “Renard” trolley; • 5m3 trolley; • Characterization trolley; • Hoisting devices and rack; • Sorting table.

  7. MAIN REQUIREMENTS The main designing requirements are the following: • Several types of packages (weight and dimensions); • Interface with civil construction; • Low speed for all movements; • Operations in remote control; • Maintenance of equipment; • Life time of equipments; • Operation in radioactive environment; • High accuracy of positioning; • Equipment to be designed in accordance with Machinery directive 2006/42 and FEM.1.001.

  8. MAIN DESIGN PROBLEMS • Lack of sufficient input data for the civil construction – considering the specific conditions due to the place of operation and considering the specific technological processes due to the functions of the whole system for treatment of radioactive waste it is necessary to modify and change the use of some areas of the reactor building. • Difficulties with limited space – the tight equipment overall dimensions are predetermined by the limited space assumed for operation execution and incorporation of the systems in the design.

  9. MAIN DESIGN PROBLEMS • High dose rate – operation in environment with high ionizing radiation, protection of the equipment, endurance to frequent decontamination treatment, structure designed form units which are convenient for maintenance.

  10. DEVELOPMENT OF THE DESIGN CONCEPTS IN COMPARISON TO THE ONET TECHNOLOGIES TECHNICAL SPECIFICATIONS Design solutions

  11. elevator ONET TECHNOLOGIES Design PMC Designin collaboration with ONET TECHNOLOGIES

  12. elevator PMC Designin collaboration with ONET TECHNOLOGIES Elevator is designed to carry three types of containers between four levels in the rectorbuilding. Main technical characteristics Load carrying capacity 10 t Speed of movement2 m/min Overall dimensions2190 x 1600 x 16450 mm Platform dimensions 1450 x 1450 mm Platform height from the floor 860mm

  13. “Renard” trolley ONET TECHNOLOGIES Design PMC Designin collaboration with ONET TECHNOLOGIES

  14. “Renard” trolley PMC Designin collaboration with ONET TECHNOLOGIES

  15. “Renard” trolley “Renard” trolleyperforms transportation of three types of containers. The loading/unloading operations are performed by the trolley itself and are controlled from control room. Main technical characteristics Basic trolley “Renard” Load carrying capacity 10 t Nominal lifting capacity 5,5 t Lifting height2250 mm Lifting speed1 m/min Maximum traveling speed4,47 m/min Rail span 1,2 m Trolley traveling distance 28,7 m Overall dimensions 3091 х 1430 х 2188mm Small trolley “Renard” Load carrying capacity 10 t Lifting height150 mm Lifting speed0,13 m/min Traveling speed 3,76 m/min Trolley traveling distance 8 m Overall dimensions 1300 х 1340 х 365,5mm

  16. 5m3 trolley ONET TECHNOLOGIES Design PMC Designin collaboration with ONET TECHNOLOGIES

  17. 5m3 trolley PMC Designin collaboration withONET TECHNOLOGIES The5m3 trolley is designed for operation with two types of containers:container 5m3and container R73. Main technical characteristics Load carrying capacity 23 t Lifting height 103 mm Lifting speed 0,12 m/min Traveling speed 5 m/min Rail span 1,4 m Trolley traveling distance 22 m Overall dimensions 2555 x 1800 x 1291 mm

  18. characterization trolley ONET TECHNOLOGIES Design PMC Designin collaboration with ONET TECHNOLOGIES

  19. characterization trolley PMC Designin collaboration withONET TECHNOLOGIES The Characterization trolley is designed for operation with seven types of containers. Main technical characteristics Load carrying capacity 3 t Platform rotation speed5 rpm Traveling speed 5 m/min Rail span 1,5 m Trolley traveling distance 4,7 m Overall dimensions 2151 x 1694 x 1524,5 mm

  20. Hoisting devices ONET TECHNOLOGIES Design PMC Designin collaboration with ONET TECHNOLOGIES Five hoisting devices are designed. Each hoisting device is designed for operation with a specific type of basket. The weight of the heaviest basket is 3 t.

  21. RACK FOR Hoisting devices PMC Designin collaboration with ONET TECHNOLOGIES ONET TECHNOLOGIES Design The rack is designed for storage of these 5 hoisting devices and protection lid for auxiliary coupling mechanism intended for their attaching to the crane.

  22. Sorting table ONET TECHNOLOGIES Design PMC Designin collaboration with ONET TECHNOLOGIES

  23. Sorting table PMC Designin collaboration with ONET TECHNOLOGIES The Sorting tableis designed for containing the waste unloaded from the baskets OT and NUKEM. Main technical characteristics Load carrying capacity 1,6 t Dynamic loading of the grid1 t Overall dimensions 1200 x 2270 x 600 mm

  24. equipment Control • The main control mode of the whole equipment during the process of nuclear reactor dismantling is intended to be from control room via Ethernet communication. • The reliable and synchronized operation of the devices is realized by utilization of contemporary technologies and concepts. • The equipment is also able to operate in maintenance mode and emergency mode during which the control is accomplished by local control panels.

  25. Thank YOU FOR YOUR ATTENTION !

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