Abstract
The work presented focuses on the reproduction of natural convection scenarios in the E-SCAPE facility with CFD. ESCAPE is a 1/6th scale model of the MYRRHA reactor with an electric core simulator. The pool of E-SCAPE has a diameter of 1.38m, while the core modelled by electrical resistance has details of less than a millimeter. Thus, E-SCAPE has similar scale separation features as a nuclear reactor and provides valuable experimental data to validate CFD tools for liquid metal pool-type reactors.
The current work aims at capturing 3D effects as stratification and natural circulation in large plena with CFD. Given the inseparable connection between thermal and momentum field in natural convection, capturing such flows is particularly difficult with RANS modeling. Special attention is given to study the effect of modeling of turbulent heat transfer in liquid metal flows. A direct comparison is given with E-SCAPE experiments.
Finally, the flow and thermal field predicted by CFD is compared in the E-SCAPE facility and the MYRRHA nuclear reactor. This first qualitative results of CFD indicates that the scaling of the E-SCAPE facility is allowing to reproduce the natural convection flow expected in the full-scale MYRRHA nuclear reactor during the passive cooling of the core decay heat.
Original language | English |
---|---|
Title of host publication | The 19th International Topical Meeting on Nuclear Reactor Thermal Hydraulics (NURETH-19) |
Publisher | SCK CEN |
Chapter | 36071 |
Pages | 1-13 |
Number of pages | 13 |
ISBN (Electronic) | 9789076971261 |
State | Published - 6 Mar 2022 |
Event | 2022 - NURETH - 19th International Topical Meeting on Nuclear Reactor Thermal Hydraulics - Brussels Duration: 6 Mar 2022 → 11 Mar 2022 Conference number: NURETH19 http://www.nureth19.com |
Conference
Conference | 2022 - NURETH - 19th International Topical Meeting on Nuclear Reactor Thermal Hydraulics |
---|---|
Country/Territory | Belgium |
City | Brussels |
Period | 2022-03-06 → 2022-03-11 |
Internet address |