Entry-time processes are finite-state continuous-time jump processes with transition
rates depending only on the two states involved in transition, the calendar time, and the
most recent arrival time, which is termed as entry-time.
The entry-time processes have the potential to provide a significantly greater range
of applicability and flexibility than traditional reliability tools for case studies related to
equipment and components in nuclear power plants.
In this dissertation, the finite difference approximation of the integrodifferential
Chapman-Kolmogorov equations for the entry-time processes was developed, and then it
was verified by application to some hypothetical examples that are solved by alternative
means, either (semi-)analytically or via simulation.
To demonstrate the ability of entry-time model to applications in nuclear power
plants for a RIAM based scenario, the entry-time approach is applied to the maintenance
of main generators in nuclear power using the data from INPO-EPIX database. In this
application, both reliability and financial performances acquired using the entry-time approaches corresponding to different maintenance policies are presented and discussed
to help make maintenance decisions for the plant management.
The ability of the EPIX database to provide time-dependent failure rates is
demonstrated and the techniques for extraction of failure rates from the database for
main generators are also discussed.
| Identifer | oai:union.ndltd.org:tamu.edu/oai:repository.tamu.edu:1969.1/ETD-TAMU-2790 |
| Date | 15 May 2009 |
| Creators | Wang, Shuwen |
| Contributors | Nelson, Paul |
| Source Sets | Texas A and M University |
| Language | en_US |
| Detected Language | English |
| Type | Book, Thesis, Electronic Dissertation, text |
| Format | electronic, application/pdf, born digital |
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