Interaction characteristics of subcooled water jet with high-pressure upward into high-temperature oil in a confined space

IF 1.9 3区工程技术 Q1 NUCLEAR SCIENCE & TECHNOLOGY

Nuclear Engineering and Design Pub Date : 2025-02-16 DOI:10.1016/j.nucengdes.2025.113913

Shuhua Zhou, Ruizhi Hao, Wenshu Jiang, Shuo Wang, Hanwu Gao, Xinkui Fang, Kuo Bian, Xue Chen, Tao Lu

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引用次数: 0

Abstract

During the Steam Generator Tube Rupture (SGTR) accident of Lead-cooled Fast Reactors (LFR), liquid metals come into direct contact with water, resulting in a multiphase flow phenomenon involving liquid metal, water and vapor. Studying the corresponding mechanisms of the interaction process between subcooled water jet and liquid metal is crucial with the pressure impact and temperature drastic changes during the phenomenon may damage the structural components of the reactors. The simulation experiments were conducted to investigate the interaction characteristics of subcooled water jet with high-pressure upward into high-temperature thermal oil in a confined space, studying the effect of experimental parameters (such as injection time and pressure, oil and water temperature, nozzle shape and diameter) on the oil temperature drop and pressure variation. Three pressurization modes were distinguished, including two overall vapor productions and one local vapor production. The evolution path of water/vapor in oil was inferred based on transient temperature changes. Finally, the oil temperature drop model was established by four dimensionless thermophysical parameters, and the model was validated with experimental values at an average error of 12.05%.

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来源期刊

Nuclear Engineering and Design 工程技术-核科学技术

CiteScore

3.40

自引率

11.80%

发文量

377

审稿时长

5 months

期刊介绍： Nuclear Engineering and Design covers the wide range of disciplines involved in the engineering, design, safety and construction of nuclear fission reactors. The Editors welcome papers both on applied and innovative aspects and developments in nuclear science and technology. Fundamentals of Reactor Design include: • Thermal-Hydraulics and Core Physics • Safety Analysis, Risk Assessment (PSA) • Structural and Mechanical Engineering • Materials Science • Fuel Behavior and Design • Structural Plant Design • Engineering of Reactor Components • Experiments Aspects beyond fundamentals of Reactor Design covered: • Accident Mitigation Measures • Reactor Control Systems • Licensing Issues • Safeguard Engineering • Economy of Plants • Reprocessing / Waste Disposal • Applications of Nuclear Energy • Maintenance • Decommissioning Papers on new reactor ideas and developments (Generation IV reactors) such as inherently safe modular HTRs, High Performance LWRs/HWRs and LMFBs/GFR will be considered; Actinide Burners, Accelerator Driven Systems, Energy Amplifiers and other special designs of power and research reactors and their applications are also encouraged.