Preliminary design and assessment of a heat pipe residual heat removal system for the reactor driven subcritical facility

Wenwen Zhang; Kaichao Sun; Chenglong Wang; Dalin Zhang; Wenxi Tian; Suizheng Qiu; G.H. Su

doi:https://doi.org/10.1016/j.net.2021.06.013

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자료유형: 학술저널

저자정보: Wenwen Zhang (School of Nuclear Science and Technology, Xi'an Jiaotong University) Kaichao Sun (Massachusetts Institute of Technology) Chenglong Wang (School of Nuclear Science and Technology, Xi'an Jiaotong University) Dalin Zhang (School of Nuclear Science and Technology, Xi'an Jiaotong University) Wenxi Tian (School of Nuclear Science and Technology, Xi'an Jiaotong University) Suizheng Qiu (School of Nuclear Science and Technology, Xi'an Jiaotong University) G.H. Su (School of Nuclear Science and Technology, Xi'an Jiaotong University)

저널정보: 한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제53권 제12호

발행연도: 2021.12

수록면: 3,879 - 3,891 (13page)

DOI: https://doi.org/10.1016/j.net.2021.06.013

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A heat pipe residual heat removal system is proposed to be incorporated into the reactor drivensubcritical (RDS) facility, which has been proposed by MIT Nuclear Reactor Laboratory for testing anddemonstrating the Fluoride-salt-cooled High-temperature Reactor (FHR). It aims to reduce the risk of thesystem operation after the shutdown of the facility. One of the main components of the system is an aircooled heat pipe heat exchanger. The alkali-metal high-temperature heat pipe was designed to meet theoperation temperature and residual heat removal requirement of the facility. The heat pipe modeldeveloped in the previous work was adopted to simulate the designed heat pipe and assess the heattransport capability. 3D numerical simulation of the subcritical facility active zone was performed by thecommercial CFD software STAR CCM þ to investigate the operation characteristics of this proposedsystem. The thermal resistance network of the heat pipe was built and incorporated into the CFD model. The nominal condition, partial loss of air flow accident and partial heat pipe failure accident weresimulated and analyzed. The results show that the residual heat removal system can provide sufficientcooling of the subcritical facility with a remarkable safety margin. The heat pipe can work under therecommended operation temperature range and the heat flux is below all thermal limits. The facilitypeak temperature is also lower than the safety limits

#Molten salt subcritical facility #Heat pipe design #Residual heat removal system #CFD analys

참고문헌 (20)

참고문헌 신청

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