Design methodology for insulating and cooling of a small modular reactor head by high temperature structural-thermal-fluid analysis

Autor: Jung Yoon, Dong-Won Lim, Hyeong-Yeon Lee, Jae-Hyuk Eoh, Ji-Young Jeong
Rok vydání: 2017
Předmět:
Zdroj: Journal of Nuclear Science and Technology. 54:1065-1073
ISSN: 1881-1248
0022-3131
Popis: The design of a sodium-cooled fast reactor (SFR) head can be complicated due to its shape and functions. The head is a component placed in the pressure boundary to shield nuclear radioactive radiation. At the same time, it needs to seal the reactor vessel, support penetrating components, and minimize heat losses. This paper presents a new insulating and cooling design concept of a small SFR head. For a new design, this study shows a comprehensive design approach considering fluid-thermal-structural computations. The interactive design approach refers to dependent simulation steps of three-dimensional (3D) thermal-structural, one-dimensional (1D) heat-transfer, and 3D computational fluid dynamics (CFD) analysis. This multi-domain approach was applied to the head of the large sodium integral effect test facility called sodium test loop for safety simulation and assessment (STELLA-2). And the STELLA-2 head design was proposed as a thick plate with a sandwich type of insulation, cooling the perimeter ...
Databáze: OpenAIRE