1 / 23

IL SISTEMA DI CALCOLO MODULARE ERANOS ( E UROPEAN R EACTOR AN ALYSIS O PTIMIZED S YSTEM)

IL SISTEMA DI CALCOLO MODULARE ERANOS ( E UROPEAN R EACTOR AN ALYSIS O PTIMIZED S YSTEM). 1. Lattice calculation with ECCO Summary Basic reactor modeling: medium set creation operating conditions ECCO sentence and steps basic set creation for core calculation

jaser
Télécharger la présentation

IL SISTEMA DI CALCOLO MODULARE ERANOS ( E UROPEAN R EACTOR AN ALYSIS O PTIMIZED S YSTEM)

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. IL SISTEMA DI CALCOLO MODULAREERANOS(EUROPEAN REACTOR ANALYSIS OPTIMIZED SYSTEM)

  2. 1. Lattice calculation with ECCO • Summary • Basic reactor modeling: • medium set creation • operating conditions • ECCO sentence and steps • basic set creation for core calculation • Advanced topics: • heterogeneous cells • ECCO routes • ECCO step options

  3. Modeled Reactor • Na-cooled (U,Pu)O2 fast reactor1250 MW (thermal) / 500 MW (electric) • Fuel S/A geometric data: • •169-pin bundle ; pin pitch = 0.878 cm • •Hexagonal wrapper across-flats = 11.65 cm (inner) x 12.37 cm (outer) • •S/A pitch = 12.87 cm ; Fissile height= 100 cm • •Integrated axial blankets (same geometryas fissile) • •Lower/upper axial blanket height= 25/25 cm • •Numberof fuel S/Asis the core= 255 • Fertile S/A geometric data: • •61-pin bundle ; pin pitch = 1.445 cm • •Spacer wire diameter= 0.187 cm • •Hexagonal wrapper across-flats = 11.65 cm (inner) x 12.37 cm (outer) • •S/A pitch = 12.87 cm Fertile height= 150 cm

  4. Module sequence • MEDIUM_CREATION to create materials, medium and cells: • •MEDIUM set (output) • •Cell description needs medium • •Medium description needs materials • A medium is a homogeneous collection of materials with volume fractions. • A cell is a collection of media with geometrical links with each other. • OPERATING_CONDITION to expand medium (optional): • MEDIUM set (input and output) • ECCO to perform lattice calculation: • MEDIUM set (input) • Ecco files (output) • BASIC_EDL_CREATION_FROM_ECCO_FILE to create edl: • MEDIUM set (input and output) • Ecco files (input) • MICRO and MACRO set (output)

  5. Global Data • !---> EINT/EEXT = inner/outer volume (Pu+Am)O2/(U+Pu+Am)O2 in % • ->EINT (25.0*0.74) ; • ->EEXT 25.0 ; • !---> expansion coefficients : • ->OXIDE_DIL 100 1.0528E-05 200 1.0553E-05 ... ; • ->STEEL_DIL 100 1.707E-05 200 1.740E-05 ...; • ->SODIUM_DIL 100 8.65600E-5 200 8.90300E-5 ...; • ->B4C_DIL 100 0.4344E-5 200 0.4468E-5 ...; • !---> lists for (initial) trace nuclides : • ->HN_TRACES • 'U234' 1.0E-15 'U235' 1.0E-15 'U236' 1.0E-15 'U238' 1.0E-15 ... ;

  6. MEDIUM_CREATION general

  7. MEDIUM_CREATION simple material

  8. MEDIUM_CREATION mixed material

  9. MEDIUM_CREATION medium

  10. MEDIUM_CREATION homogenous cell

More Related