Reliability Assessment for a Safety-Related Digital Reactor Protection System Using Event-TreeFault-Tree (ETFT) Method
المؤلفون المشاركون
Liu, Mingxing
Guo, Yun
Liang, Qingzhu
Xiao, Jun
Peng, Changhong
Xiao, Peng
المصدر
Science and Technology of Nuclear Installations
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-9، 9ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-11-30
دولة النشر
مصر
عدد الصفحات
9
الملخص EN
The aim of this study is to verify if the reliability of a digital four-channel RPS under the design phase satisfies the specified target and to identify the weakness of system design and potential solutions for system reliability improvement.
The event-tree/fault-tree (ET/FT), which is the method used in the current probabilistic safety assessment (PSA) framework of nuclear power plants (NPPs), was adopted to developed reliability modeling for the RPS with the Top Events defined as the system failure to generate reactor trip signal and the system generating spurious trip signal.
The evaluation results indicate that the probability of the system failure on demand and the frequency of spurious trip signal generation are 1.47 × 10−6 with a 95% upper bound of 4.63 × 10−6 and 7.94 × 10−4/year with a 95% upper bound of 2.50 × 10−3/year, respectively.
The importance and sensitivity analyses were conducted and it was found that undetected unsafe common cause failures (CCFs) of signal conditioning modules (SCMs) dominate the system reliability.
Two preliminary optimization schemes relative to reducing periodic test interval and adapting two kinds of diverse SCMs were proposed.
Results of the quantitive evaluation of the schemes show that neither of them could determinedly improve the system reliability to the target level.
In the future, more detailed optimization analysis shall be required to determine a feasible system design optimization scheme.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Liang, Qingzhu& Liu, Mingxing& Xiao, Peng& Guo, Yun& Xiao, Jun& Peng, Changhong. 2020. Reliability Assessment for a Safety-Related Digital Reactor Protection System Using Event-TreeFault-Tree (ETFT) Method. Science and Technology of Nuclear Installations،Vol. 2020, no. 2020, pp.1-9.
https://search.emarefa.net/detail/BIM-1209501
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Liang, Qingzhu…[et al.]. Reliability Assessment for a Safety-Related Digital Reactor Protection System Using Event-TreeFault-Tree (ETFT) Method. Science and Technology of Nuclear Installations No. 2020 (2020), pp.1-9.
https://search.emarefa.net/detail/BIM-1209501
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Liang, Qingzhu& Liu, Mingxing& Xiao, Peng& Guo, Yun& Xiao, Jun& Peng, Changhong. Reliability Assessment for a Safety-Related Digital Reactor Protection System Using Event-TreeFault-Tree (ETFT) Method. Science and Technology of Nuclear Installations. 2020. Vol. 2020, no. 2020, pp.1-9.
https://search.emarefa.net/detail/BIM-1209501
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1209501
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر