The present report gives a summary of data collection, analyses and reliability parameters related to failures occurred in fusion machines, with emphasis on the Joint European Torus (JET) operation experience. Data from the Tritium Laboratory of FZK Karlsruhe TLK were also collected and analysed. Those activities were done, from 2001 to 2006, in the frame of the EFDA JET Fusion Technology tasks (JWO-FT-5.4, JW3-FT-5.13, JW5-FT-5.19) of the European Fusion Technology Programme. The JET the data collection and the corresponding reliability analyses were related to the Vacuum System (VS), the Active Gas Handling System (AGHS), the Neutral Beam Injectors system (NBI), the Power Supply system (PS), and the JET Ion Cyclotron Resonant Heating system (ICRH). Several thousands of components have been considered, in total, with their corresponding operation life. Few hundreds of failures/malfunctioning related to those components have been identified and classified. Data collection was based on a number of sources specific to the plant, including: operation records (e.g. electronic database, hand-written logbooks), incident investigation reports, maintenance and repair records/database, annual and technical reports, and plant personnel interviews. Reliability parameters such as failure rate and failure probability on demands, with the corresponding standard error, lower and upper limits of the 90% confidence interval, have been calculated. As a result of the work, practical information arisen from the experience gained operating the different systems, were get out too. More details about the overall activity are included in various ENEA reports and papers, listed in references of this report. Statistical data are recorded on the “Fusion Component Failure Rate Database”, that is included in the frame of the International Energy Agency (IEA) Agreement on the Environmental, Safety and Economic Aspects of Fusion Power (IEA ESE), precisely, under Task 5 of the IEA ESE The work was possible thank to the strong collaboration with the staffs of the different JET systems considered and the TLK and to the support of the EFDA-CSU.
G. Cambi, T. Pinna (2006). Summary on collection and analysis of component failure data from fusion machine system operating experience. FRASCATI (ROMA) : ENEA.
Summary on collection and analysis of component failure data from fusion machine system operating experience
CAMBI, GILIO;
2006
Abstract
The present report gives a summary of data collection, analyses and reliability parameters related to failures occurred in fusion machines, with emphasis on the Joint European Torus (JET) operation experience. Data from the Tritium Laboratory of FZK Karlsruhe TLK were also collected and analysed. Those activities were done, from 2001 to 2006, in the frame of the EFDA JET Fusion Technology tasks (JWO-FT-5.4, JW3-FT-5.13, JW5-FT-5.19) of the European Fusion Technology Programme. The JET the data collection and the corresponding reliability analyses were related to the Vacuum System (VS), the Active Gas Handling System (AGHS), the Neutral Beam Injectors system (NBI), the Power Supply system (PS), and the JET Ion Cyclotron Resonant Heating system (ICRH). Several thousands of components have been considered, in total, with their corresponding operation life. Few hundreds of failures/malfunctioning related to those components have been identified and classified. Data collection was based on a number of sources specific to the plant, including: operation records (e.g. electronic database, hand-written logbooks), incident investigation reports, maintenance and repair records/database, annual and technical reports, and plant personnel interviews. Reliability parameters such as failure rate and failure probability on demands, with the corresponding standard error, lower and upper limits of the 90% confidence interval, have been calculated. As a result of the work, practical information arisen from the experience gained operating the different systems, were get out too. More details about the overall activity are included in various ENEA reports and papers, listed in references of this report. Statistical data are recorded on the “Fusion Component Failure Rate Database”, that is included in the frame of the International Energy Agency (IEA) Agreement on the Environmental, Safety and Economic Aspects of Fusion Power (IEA ESE), precisely, under Task 5 of the IEA ESE The work was possible thank to the strong collaboration with the staffs of the different JET systems considered and the TLK and to the support of the EFDA-CSU.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
