![]() ![]() When Windows does not recognize a filename extension, you receive the following message: If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. ![]() When you double-click a file to open it, Windows examines the filename extension. This comparison is useful for the International Energy Agency task on fusion component failure rate data collection.Naturally, other applications may also use the. Finally, the recommended failure data were compared to an independent data set to determine the accuracy of individual values. An effort has also been given to identifying any more » safety issues with personnel operating or maintaining ventilation systems. Since ventilation systems have a role in mitigating accident releases in nuclear facilities, these data are useful in safety analysis and risk assessment of public safety. The report contains descriptions of ventilation system components, operating experiences with these systems, component failure rates, and component repair times. These experiences are applicable for magnetic and inertial fusion facilities since air ventilation systems are support systems that can be considered generic to nuclear facilities. This report is a collection and review of system operation and failure experiences for air ventilation systems in nuclear facilities. For some fusion facilities, the investigations on causes and effects of failures of components and systems have also interested worker exposures and radiological releases induced by maintenance activities on failed components. Several years later, attention was also directed to collecting and analyzing operating experience data from existing tokamaks and other fusion experiments. At first, it was to "harvest" already-published data from high-technology industries more » that can be readily applied to fusion components. The activity supported by European, American, and Japanese programs is established in the context of the International Energy Agency Agreement on the Environmental, Safety and Economic Aspects of Fusion Power (IEA ESE). The objective of this ongoing activity is to develop a fusion specific component failure rate database useful to quantify probabilistic safety assessment, support traditional safety analysis, quantify reliability, availability, maintainability, and inspectability (RAMI) analyses, and support any other uses where field experience can provide feedback to fusion facility design and operation. The accessibility of data documents via the internet is also described. These data sources have been evaluated with a basic rating of usefulness for analysis work, and each has a description of what data can be found in the citation that can be used to support assessments in industry. For those analysts who do not have either of those options available, this paper presents more » some data sources that are retrievable from the literature. Other companies hire consultants to perform safety assessments the consulting firms often use their own data bases. Some companies have many types of data stored and can retrieve these in-house data for such uses. When performing reliability studies or using probabilistic safety approaches, a basic need arises for input data on failure rates of the mechanical, electrical, instrumentation and control, and other components that comprise the engineering systems in the facility. Probabilistic safety methods are being used in several industries, including chemical, manufacturing, and energy. ![]()
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