Conceptual design of a copper-bonded steam generator for SFR and the development of its thermal-hydraulic analyzing code

• Published in: Nuclear engineering and technology Vol. 54; no. 6; pp. 2262 - 2275
• Main Authors: Im, Sunghyuk, Jung, Yohan, Hong, Jonggan, Choi, Sun Rock
• Format: Journal Article
• Language: Korean
• Published: 2022
• Subjects: Copper-bonded steam generator; Sodium-cooled fast reactor; Thermal-hydraulic sizing code; Sodium-water reaction
• ISSN: 1738-5733; 2234-358X

The Korea Atomic Energy Research Institute (KAERI) studied the sodium-water reaction (SWR) minimized steam generator for the safety of the sodium-cooled fast reactor (SFR), and selected the copper bonded steam generator (CBSG) as the optimal concept. This paper introduces the conceptual design of the CBSG and the development of the CBSG sizing analyzer (CBSGSA). The CBSG consists of multiple heat transfer modules with a crossflow heat transfer configuration where sodium flows horizontally and water flows vertically. The heat transfer modules are stacked along a vertical direction to achieve the targeted large heat transfer capacity. The CBSGSA code was developed for the thermal-hydraulic analysis of the CBSG in a multi-pass crossflow heat transfer configuration. Finally, we conducted a preliminary sizing and rating analysis of the CBSG for the trans-uranium (TRU) core system using the CBSGSA code proposed by KAERI.