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Towards a Probabilistic Analysis of Pressurized Thermal Shock
Volume 3: Fluid-Structure Interaction; High Pressure Technology, 2022Abstract Pressurized thermal shock (PTS) in a reactor pressure vessel could lead to a sudden brittle and catastrophic cleavage fracture. The combination of radiation embrittlement, the thermal stresses, and low temperatures can cause severe conditions for the structures.
C. D. Versteylen +5 more
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Probabilistic Pressurized Thermal Shocks Analyses for a Reactor Pressure Vessel
Journal of Pressure Vessel Technology, 2014Both deterministic and probabilistic methods are used to assess the integrity of a reactor pressure vessel (RPV) subjected to pressurized thermal shocks (PTSs). The FAVOR code is applied to calculate the probabilities for crack initiation and failure of the RPV subjected to two transients, by considering crack distributions based on cracks observed in ...
Qian, Guian, Niffenegger, Markus
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Consequence evaluation for pressurized thermal shock
Nuclear Engineering and Design, 1985Abstract In order to estimate the risk associated with Pressurized Thermal Shock (PTS), a sample calculation of the core melt frequency and offsite consequences has been performed for Oconee Unit 1, a Babcock and Wilcox pressurized water reactor located in the United States.
Richard J. Barrett, Edward D. Throm
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Uncertainties in Pressurized Thermal Shock Analyses
Volume 3: Design and Analysis, 2019Abstract Integrity assessment of reactor pressure vessels (RPVs) can be performed either by deterministic fracture mechanics (DFM) or/and by probabilistic fracture mechanics (PFM) analyses. In European countries and Switzerland, only DFM analyses are required.
Niffenegger, M. +7 more
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Numerical Analysis of Pressurized Thermal Shock in Reactor Pressure Vessel
Volume 3: Computational Fluid Dynamics (CFD); Verification and Validation; Advanced Methods of Manufacturing (AMM) for Nuclear Reactors and Components; Decontamination, Decommissioning, and Radioactive Waste Management; Beyond Design Basis and Nuclear Safety; Risk Informed Management and Regulation, 2021Abstract One of the most important issues for the assessment of life time extension of a nuclear power plant is whether the Reactor Pressure Vessel (RPV) can maintain structural integrity under Pressurized Thermal Shock (PTS) phenomenon.
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Journal of Loss Prevention in the Process Industries, 2021
Abstract Piezoelectric pressure sensors are susceptible to changing temperatures, because resulting mechanical deformations of the sensor membrane and housing may exert a positive or negative force on the piezo crystal, thus changing the reading of this sensor.
Tim Krause +2 more
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Abstract Piezoelectric pressure sensors are susceptible to changing temperatures, because resulting mechanical deformations of the sensor membrane and housing may exert a positive or negative force on the piezo crystal, thus changing the reading of this sensor.
Tim Krause +2 more
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Pressurized Thermal Shock — An Integrated Analysis
1984The potential for long term neutron embrittlement of reactor vessels has been recognized for a number of years. Reactor vessel thermal shock is not a new concern, but with a growing number of plants approaching their mid-lives, it is a concern that must be understood and dealt with.
B. Chexal +4 more
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Quantification of Thermal Shock in a Piezoelectric Pressure Transducer
SAE Technical Paper Series, 2005<div class="htmlview paragraph">One of the major problems limiting the accuracy of piezoelectric transducers for cylinder pressure measurements in an internal-combustion (IC) engine is the thermal shock. Thermal shock is generated from the temperature variation during the cycle.
Seokhwan Lee +5 more
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International Journal of Pressure Vessels and Piping, 2020
Abstract Pressurized-thermal-shocks (PTSs) are the most severe accidents that impact the structural integrity of a pressurized water reactor pressure vessel (RPV). In general, the one-dimensional thermal-hydraulic analysis results for PTS transients were often used as the loading conditions for structural integrity evaluation of RPV, but may cause ...
Pin-Chiun Huang +3 more
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Abstract Pressurized-thermal-shocks (PTSs) are the most severe accidents that impact the structural integrity of a pressurized water reactor pressure vessel (RPV). In general, the one-dimensional thermal-hydraulic analysis results for PTS transients were often used as the loading conditions for structural integrity evaluation of RPV, but may cause ...
Pin-Chiun Huang +3 more
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Thermal shock experiments on the HDR pressure vessel
Nuclear Engineering and Design, 1991Abstract Within the HDR-Safety Program cracks in the HDR pressure vessel were generated and propagated by cyclic and monotonic thermal shock loadings. After various test stages the damaged zones of the RPV were removed and examined both fractographically and metallographically. These post-test examinations showed, that during the cyclic thermal shock
U. Eisele +3 more
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