onr:"swepub:oai:DiVA.org:kth-175050"
Search: onr:"swepub:oai:DiVA.org:kth-175050" > Dynamic Hybrid Reli...
- 1 of 1
- Previous record
- Next record
- To hitlist
Dynamic Hybrid Reliability Studies of a Decay Heat Removal System
-
- Kumar, Ranjan (author)
- KTH,Kärnkraftssäkerhet
-
- Kudinov, Pavel (author)
- KTH,Kärnkraftssäkerhet
-
- Bechta, Sevostian (author)
- KTH,Kärnkraftssäkerhet
- show more...
- Curnier, F. (author)
- Marques, M. (author)
- show less...
- (creator_code:org_t)
- World Scientific, 2015
- 2015
- English.
- In: International Journal of Reliability, Quality and Safety Engineering (IJRQSE). - : World Scientific. - 0218-5393. ; 22:4
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- Some critical safety systems exhibit the characteristics of hybrid stochastic class whose performance depends on the dynamic interactions of deterministic variables of physical phenomena and probabilistic variables of system failures. However, conventional probabilistic safety assessment (PSA) method involves static event and linked fault tree analysis and does not capture the dynamic interactions of such hybrid stochastic systems. Additionally, the existing dynamic PSA methods do not consider any repair possibility of some failed components during safety assessment. To address these issues, this paper presents a dynamic hybrid reliability assessment scheme for performance studies of repairable nuclear safety systems during a mission time. This scheme combines the features of reliability block diagram (RBD) for system compositions and partial differential equations for system physics using a customized stochastic hybrid automata tool implemented on Python platform. A case study of decay heat removal (DHR) systems has been performed using the introduced scheme. The impacts of failure rates and repair rates on sodium temperature evolution over a mission time have been analyzed. The results provide useful safety insights in mission safety tests of DHR systems. In sum, this work advances the dynamic safety assessment approach for complex system designs including nuclear power plants.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering (hsv//eng)
Keyword
- decay heat removal system
- dynamic reliability
- piecewise deterministic Markov process
- Probabilistic safety assessment
- stochastic hybrid automata
- Differential equations
- Fault tree analysis
- Nuclear power plants
- Reliability
- Repair
- Safety engineering
- Safety testing
- Security systems
- Stochastic systems
- Systems analysis
- Systems engineering
- Decay heat removal systems
- Dynamic interaction
- Dynamic safety assessments
- Hybrid stochastic system
- Nuclear safety system
- Reliability block diagrams
- Temperature evolution
- Dynamics
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
- International Journal of Reliability, Quality and Safety Engineering (IJRQSE) (Search for host publication in LIBRIS)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Kumar, Ranjan
- Kudinov, Pavel
- Bechta, Sevostia ...
- Curnier, F.
- Marques, M.
- About the subject
-
- ENGINEERING AND TECHNOLOGY
- ENGINEERING AND ...
- and Mechanical Engin ...
- Articles in the publication
- International Jo ...
- By the university
- Royal Institute of Technology
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
