ALLEGRO Project. Branislav Hatala. SES September, 2012 Bratislava.

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1 ALLEGRO Project Branislav Hatala SES September, 2012 Bratislava

2 General objectives Gas cooled fast reactors (GFR) represent one of the three European candidate fast reactor types. Allegro Gas Fast Reactor (GFR) Potential Sites: Jaslovské Bohunice Slovakia Dukovany Czech Republic Paks - Hungary Astrid Advanced Sodium Technical Reactor for Industrial Demonstration Sodium Fast Reacto (SFR) Site: Marcool France Alfred Advanced Lead Fast Reactor European Demonstrator Led Fast Reactor (LFR) Potential Sites: Cerna Voda, Romania Technically, GFR is a realistic and promising option thanks to its specific advantages connected with helium properties. The Gas-cooled Fast Reactor is an innovative nuclear system that combines fast neutrons and high temperature (850 C). 2

3 ALLEGRO Project A technology demonstration as a first gas-cooled fast reactor ALLEGRO GFR

4 ALLEGRO Project A technology demonstration as a first gas-cooled fast reactor ALLEGRO GFR

5 General objectives The ultimate objectives of ALLEGRO 1. Demonstration of the GFR gen-4 concept, (alternative technology to the reactor cooled by molten sodium) -demonstration of the technological feasibility, helium cooling and high temperature core, - demonstration of the breeding capacity, - demonstration of the ability of transmutation of actinides. 2. Demonstration of heat production at industrial and economic conditions. As a one of fast reactor would produce heat about 850 C, which will be able to chemically produce hydrogen. High temperature heat could be used also for technological purposes. 5

6 Main characteristic of the ALLEGRO core Fuel MOX 87 Diverse Shutdown Devices (DSD) 4 Control and Shutdown Devices (CSD) 6 Reflector Schield MOX Core Ceramic Core Core power 75 MWth Coolant pressure 7 MPa Primary mass flow rate 53 kg/s 36 kg/s Core inlet temperature 260 C 400 C Core outlet temperature 560 C 850 C Heat exchanger 6 power 2 x 40MWth

7 The ALLEGRO consortium Joint preparatory work started in 2010 with support of CEA Signature of a MoU by AEKI Budapest UJV Rez VUJE in May Hungary Czech Rep. Slovak Rep. NCBJ (Poland) will officially join the consortium in June Roadmap of construction has been prepared, with the main chapters General design, Safety principles, Licensing, R&D, Governance and IPR issues. 7 Note: AEKI is the MTA Centre for Energy Research (MTA-EK) since January 2012

8 The ALLEGRO Working Groups WGs have already started their activities 8

9 Preparatory phase ( ) Choice of the main options and preparation of the corresponding documents: Review of the initial design proposed by the CEA mid 2012 Description of the new design mid 2012; freeze: end 2013 CSFRF* preliminary version end 2012; CSFRF: end 2013 Technology qualification and R&D programs sept Fresh and spent fuel: supply and disposal options end 2013 Analysis of the pre-selected sites mid 2013; selection: mid 2013 Definition of the licensing process with the safety authorities end 2012 Analysis of the possible financing mechanisms mid 2013 Inter-governmental agreement mid 2013 Description of the organizations which should be implemented for operation and research responsibilities end 2013 Governance & IPRs IPR end 2012 mid 2013 Time schedule of construction mid 2013 * CSFRF: Conceptual Safety Features Review File 9

10 Evolution of the Design It was agreed that the original CEA concept of ALLEGRO shall be modified. (water on the secondary side without power conversion system) Aim: to make ALLEGRO demonstrator closer to GFR2400 The considered modifications concern mainly the secondary side. An intermediate gas circuit (He+N2 mixture) was included between the He primary circuit and the water circuit. 10

11 Qualification and R&D Programs A list of qualification and R&D topics is being established. It will be divided into 3 parts (the third part needs ALLEGRO in operation) R&D Program to be performed in the preparatory phase Validation of transient calculations of the secondary circuit with combined cycle Development of helium purification technologies Development of the thermal shield of the pressure vessel and primary piping, Development of special optical measurement techniques Development of material for primary circuit (including welding material) Qualification Program to be performed in the preparatory phase Characterization of blowers, turbomachines and IHX Joint test of turbomachine and blower in normal operation and after shutdown Joint test of DHR function Mechanical test coaxial piping Mechanical test of isolating valves (DHR, main circulation loop) Test of leak tightness of primary circuit components Validation of transient calculations of the secondary circuit with combined cycle R&D Program for the ALLEGRO First Phase of operation 11

12 Governances Issues It is proposed to create a GFR Centre of Excellence ALLEGRO design & safety VUJE Slovak Republic Research laboratory on technology related experiments UJV Czech Republic (thermophysics, aerodynamics, helium technology, reactor physics, etc. problems) laboratory on the closed fuel cycle and fuel issues (PIE of ceramic test fuels, separation of minor actinides, fuel fabrication problems, etc.) MTA EK Hungary laboratory for industrial application of high temperature gases NCBJ Poland (problems of high temperature problems, applicability of high temperature gases in industrial processes) 12

13 EURATOM 2012 FP7 Project ALLIANCE ALLIANCE - ALLegro Implementing Advanced Nuclear Fuel Cycle in Central Europe - submitted in the frame of the 7th FP (2nd Call in March 2012) - Coordination and Support Actions, Fission : Non-research activities in support of the implementation of the Strategic Research Agenda of SNE-TP and safety of nuclear systems 1. Magyar Tudományos Akadémia Energiatudományi Kutatóközpont MTA-EK Hungary 2. Ústav jaderného výzkumu Řež a.s. UJV Řež Czech Rep. 3. VUJE, a.s. VUJE Slovakia 4. Commissariat à l Énergie Atomique et aux Energies Alternatives CEA France 5. Institut für Nuklearen Brennstoffkreislauf der RWTH Aachen INBK Grermany 6. Institut de Radioprotection et de Sûreté Nucléaire IRSN France 7. Narodowe Centrum Badań Jądrowych NCBJ Poland 8. Budapesti Műszaki és Gazdaságtudományi Egyetem Nukleáris Technikai Intézete BME NTI Hungary 9. Centrum výskumu Řež, s.r.o. CV Řež Czech Rep. Note: AEKI is the MTA Centre for Energy Research (MTA-EK) since January

14 EURATOM 2012 FP7 Project ALLIANCE ALLIANCE - ALLegro Implementing Advanced Nuclear Fuel Cycle in Central Europe - project focuses on the preparatory phase for developing the ALLEGRO demonstrator WP1 Project Management WP2 Roadmap of the ALLEGRO reactor construction WP3 ALLEGRO design safety concept Task 3.1 General principles Task 3.2 Fuel system Task 3.3 Reactor and primary systems Task 3.4 I&C systems Task 3.5 Reactor building systems Task 3.6 Power supply Task 3.7 Other systems Task 3.8 Construction Task 3.9 Design safety concepts Task 3.10 Experimental devices Task 3.11 Severe accident management tools WP4 Experimental support to design work WP5 Safety and licensing WP6 Dissemination WP7 Integrated management of ALLEGRO 14

15 Thank you for your attention VUJE, a.s. Okružná Trnava Slovak Republic 15 VUJE, a. s. Okružná 5, Trnava

16 EM 2 General Atomics is developing the Energy Multiplier Module (EM 2 ) 500 MW t small modular fast gas reactor that produces 240 MW e The EM 2 is a modified version of General Atomics high-temperature, helium-cooled reactor and is capable of converting used nuclear fuel into electricity and industrial process heat, without conventional reprocessing. Each module would produce about 240 MW e of power at 850 C. 16