Benchmark Analysis of an EBR-II Shutdown Heat Removal Test
Closed for Proposals
Project Type
Coordinated Research ProjectProject Code
I31021
CRP
1830
Approved Date
27 February 2012Project Status
Active - OngoingStart Date
23 May 2012Expected End Date
23 May 2016Completed Date
30 May 2016Description
The Coordinated Research Project (CRP) addresses Shutdown Heat Removal Tests (SHRT) performed at the Experimental Breeder Reactor-II (EBR-II) within the framework of the US Integral Fast Reactor (IFR) development and demonstration program. The CRP's will improve the participants’ simulation capabilities in the various fields of research and design of sodium cooled fast reactors through data and codes validation and qualification. The CRP work plan includes for each of the participants (i) EBR-II model development on the basis of the specifications provided by ANL for selected shutdown heat removal test(s); (ii) test simulations; (iii) compilation of results; (iv) comparisons of results against test data and against the other participants; and (v) analysis and recommendations for improved modelling aiming at the uncertainties reduction.
Objectives
To improve the Member States' analytical capabilities in the field of fast reactor simulation and design contributing towards extending the validation and verification of state-of-the-art liquid metal cooled fast reactor codes to accurately simulate the primary coolant loop behaviour during loss-of-flow accidents; particularly on predicting natural convective cooling accurately.
Specific Objectives
Evaluation of the following parameters that predict the transient behaviour of the primary coolant loop:
- Reactor core flow and temperatures (measurements obtained from the instrumented subassemblies XX09 and XX10 for axial distributions at fuel centerline, fuel surface, coolant, and structures);
- IHX sodium outlet temperature
- Reactor inlet sodium temperature and flow rate
Evaluation of uncertainties for prediction of:
- Flow rates;
- Fuel, cladding, coolant, and structure temperatures along the length of a subassembly;
- Transition to natural circulation.
Simulation of shutdown heat removal tests using different codes, data, and models