PILLAR: Integral test facility for LBE-cooled passive small modular reactor research and computational code benchmark

Autor: Yong-Hoon Shin, Jaeyeong Park, Jungho Hur, Seongjin Jeong, Il Soon Hwang
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Nuclear Engineering and Technology, Vol 53, Iss 11, Pp 3580-3596 (2021)
Druh dokumentu: article
ISSN: 1738-5733
DOI: 10.1016/j.net.2021.05.024
Popis: An integral test facility, PILLAR, was commissioned, aiming to provide valuable experimental results which can be referenced by system and component designers and used for the performance demonstration of liquid-metal-cooled, passive small modular reactors (SMRs) toward their licensing. The setup was conceptualized by a scaling analysis which allows the vertical arrangements to be conserved from its prototypic reactor, scaled uniformly in the radial direction achieving a flow area reduction of 1/200. Its final design includes several heater rods which simulate the reactor core, and a single heat exchanger representing the steam generators in the prototype. The system behaviors were characterized by its data acquisition system implementing various instruments. In this paper, we present not only a detailed description of the facility components, but also selected experimental results of both steady-state and transient cases. The obtained steady-state test results were utilized for the benchmark of a system code, achieving a capability of accurate simulations with ±3% of maximum deviations. It was followed by qualitative comparisons on the transient test results which indicate that the integral system behaviors in passive LBE-cooled systems are able to be predicted by the code.
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