scholarly journals Validation of innovative technologies and strategies for regulatory safety assessment methods: challenges and opportunities

ALTEX ◽  
2010 ◽  
pp. 198-206
Author(s):  
William Stokes
Keyword(s):  
Safety Assessment ◽  
Assessment Methods ◽  
Innovative Technologies ◽  
Challenges And Opportunities

IO, Coagency, Intractability, and Resilience

2013 ◽  
pp. 342-352 ◽  
Author(s):  
Erik Hollnagel
Keyword(s):  
Safety Assessment ◽  
Assessment Methods ◽  
Resilience Engineering ◽  
Safety Issues ◽  
Technological Developments ◽  
Technical Systems ◽  
Integrated Operations ◽  
Circulus Vitiosus

Technological developments continuously create opportunities that are eagerly adopted by industries with a seemingly insatiable need for innovation. This has established a forceful circulus vitiosus that has resulted in exceedingly complicated socio-technical systems. The introduction of Integrated Operations in drilling and off-shore operations is one, but not the only, example of that. This development poses a challenge for how to deal with risk and safety issues. Where existing safety assessment methods focus on descriptions of component capabilities, complicated socio-technical systems must be described in terms of relations or even functional couplings. In order to design, analyse, and manage such systems, it must be acknowledged that performance adjustments are a resource rather than a threat. Safety can no longer be achieved just by preventing that something goes wrong, but must instead try to ensure that everything goes right. Resilience engineering provides the conceptual and practical means to support and accomplish that change.

Composition of Safety and Cyber Security Analysis Techniques and Tools for NPP I&C System Assessment

2020 ◽  
pp. 204-220
Author(s):  
Ievgen Babeshko ◽  
Kostiantyn Leontiiev
Keyword(s):  
Cyber Security ◽  
Nuclear Power ◽  
Safety Assessment ◽  
Security Analysis ◽  
Assessment Method ◽  
Assessment Methods ◽  
Assessment Process ◽  
Safety Level ◽  
Methods And Techniques ◽  
And Control

Safety assessment of nuclear power plant instrumentation and control systems (NPP I&Cs) is a complicated and resource-consuming process that is required to be done so as to ensure the required safety level and comply to normative regulations. A lot of work has been performed in the field of application of different assessment methods and techniques, modifying them, and using their combinations so as to provide a unified approach in comprehensive safety assessment. Performed research has shown that there are still challenges to overcome, including rationale and choice of the safety assessment method, verification of assessment results, choosing and applying techniques that support safety assessment process, especially in the nuclear field. This chapter presents a developed framework that aggregates the most appropriate safety assessment methods typically used for NPP I&Cs.

Innovative Technologies to Support Education and Training: Researches by LabTEVE

2020 ◽  
Author(s):  
Liliane Machado ◽  
Ronei Moraes
Keyword(s):  
Virtual Reality ◽  
Serious Games ◽  
Education And Training ◽  
Assessment Methods ◽  
Learning Assessment ◽  
Educational Content ◽  
Innovative Technologies ◽  
Training Systems ◽  
The Future ◽  
And Training

Training systems based on virtual reality, serious games, assessment methods, systems to support learning, assessment methodologies and technologies to extend interaction with educational content have been the focus of researches at LabTEVE. The interdisciplinarity can be observed in each project, highlighting the need for dialogue between areas for the production of solutions and technologies that can be used today as well as prospected for the future.

A Study on Degree of Conservatism of Two Safety Assessment Methods for Piping and Vessels With Defects

2019 ◽  
Author(s):  
Meng He ◽  
Haitao Li ◽  
Zhiyuan Han ◽  
Guoshan Xie ◽  
Liang Sun ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Failure Probability ◽  
Safety Assessment ◽  
Evaluation Method ◽  
Assessment Method ◽  
Pressure Vessels ◽  
Assessment Methods ◽  
Operating Pressure ◽  
Safety Factors ◽  
Straight Pipe

Abstract Flaws (defects), such as local thinning due to corrosion, inevitably exist in piping and pressure vessels. These defects can be evaluated using the fitness for service (FFS) method provided in the GB/T 19624 standard. Recently, the GB/T 35013 standard (Fitness-for-service assessment of pressure equipments), which provides another FFS assessment method for local thinning on piping and vessels, has been published. The evaluation method for local thinning in the GB/T 35013 standard is generally similar to that in the API 579-1/ASME FFS-1 (2016), but is totally different from that in the GB/T 19624. In this paper, the differences of the local thinning assessment methods in the GB/T 35013 (or API 579-1/ASME FFS-1 (2016)) and the GB/T 19624 are summarized, and the degree of conservatism comparisons between these standards are presented. The maximum allowable operating pressure (Prmax) that takes into account the effect of defects for straight pipe sections and vessels under different defect sizes and safety factors in these two standards have been calculated and compared. Monte Carlo simulations have been carried out to estimate the failure probability (Pf) and reliability of the straight pipe sections and vessels with different safety factors using the GB/T 19624.

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