PX–An Innovative Safety Concept for an Unmanned Reactor

Autor: Sung-Jae Yi, Chul-Hwa Song, Hyun-Sik Park
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: Nuclear Engineering and Technology, Vol 48, Iss 1, Pp 268-273 (2016)
Druh dokumentu: article
ISSN: 1738-5733
DOI: 10.1016/j.net.2015.08.011
Popis: An innovative safety concept for a light water reactor has been developed at the Korea Atomic Energy Research Institute. It is a unique concept that adopts both a fast heat transfer mechanism for a small containment and a changing mechanism of the cooling geometry to take advantage of the potential, thermal, and dynamic energies of the cold water in the containment. It can bring about rapid cooling of the containment and long-term cooling of the decay heat. By virtue of this innovative concept, nuclear fuel damage events can be prevented. The ultimate heat transfer mechanism contributes to minimization of the heat exchanger size and containment volume. A small containment can ensure the underground construction, which can use river or seawater as an ultimate heat sink. The changing mechanism of the cooling geometry simplifies several safety systems and unifies diverse functions. Simplicity of the present safety system does not require any operator actions during events or accidents. Therefore, the unique safety concept of PX can realize both economic competitiveness and inherent safety.
Databáze: Directory of Open Access Journals