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http://dx.doi.org/10.20466/KPVP.2016.12.1.078

Structural design concept of the forced-draft sodium-to-air heat exchanger in the decay heat removal system of PGSFR  

Kim, Nak Hyun (한국원자력연구원)
Lee, Sa Yong (한국원자력연구원)
Kim, Sung Kyun (한국원자력연구원)
Publication Information
Transactions of the Korean Society of Pressure Vessels and Piping / v.12, no.1, 2016 , pp. 78-84 More about this Journal
Abstract
The FHX (Forced-draft sodium-to-air Heat Exchanger) employed in the ADHRS (active decay heat removal system) is a shell-and-tube type counter-current flow heat exchanger with M-shape finned-tube arrangement. Liquid sodium flows inside the heat transfer tubes and atmospheric air flows over the finned tubes. The unit is placed in the upper region of the reactor building and has function of dumping the system heat load into the final heat sink, i.e., the atmosphere. Heat is transmitted from the primary cold sodium pool into the ADHRS sodium loop via DHX (decay heat exchanger), and a direct heat exchange occurs between the tube-side sodium and the shell-side air through the FHX tube wall. This paper describes the DHRS and the structural design of the FHX.
Keywords
PGSFR; DHRS; ADHRS; FHX;
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  • Reference
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