Shuqian Shen , Yan Li , Bao Zhang , Yi Shuai , Liyang Wu , Xiaofu Chen , Zhanfeng Chen
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引用次数: 0
Abstract
Pipelines in nuclear, oil and gas, and chemical industries often operate under prolonged high-temperature and high-pressure conditions, which significantly degrade material strength and complicate burst pressure prediction. This study proposes a novel semi-empirical model to estimate the burst pressure of super duplex stainless steel (SDSS) pipelines under high temperature. Temperature-dependent mechanical properties were quantified through experiments and fitted into empirical equations. A new burst pressure equation was then developed, incorporating these thermal effects. A material-specific correction factor for SDSS was calibrated using Particle Swarm Optimization (PSO) based on finite element simulations. The proposed model was validated against both numerical and experimental results, showing a relative error below 4.2%. This method provides a reliable and practical tool for safety assessment of pipelines exposed to high-temperature service environments.
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.