Reliability functions and optimal decisions using condition data for EDF primary pumps

2006 9th International Conference on Probabilistic Methods Applied to Power Systems, PMAPS

QC 20141119
There are many examples in which proportional hazards modelling (PHM) is used to accurately model the effects of the operating environment on an item's lifetime. Using such techniques it is possible to find an economically optimal moment of replacement based on condition monitoring data. However, in a nuclear power plant, the problem is somewhat different as it is not possible to stop the process and perform preventive maintenance at the most economical moment in time. The problem of interest in such cases has more to do with whether the item will last until the next scheduled plant shutdown or not. This paper presents some developed and implemented theory to calculate the conditional reliability function of an item given the current equipment age and the current values of the condition-monitoring variables. A case study of a shaft seal for a reactor cooling pump (RCP) using data from several French nuclear power plants operated by the Electricité de France (EDF) is also presented.

TEKNIK OCH TEKNOLOGIER Elektroteknik och elektronik hsv//swe
ENGINEERING AND TECHNOLOGY Electrical Engineering, Electronic Engineering, Information Engineering hsv//eng
Maintenance
Markov processes
Nuclear power generation
Reliability estimation
Reliability modeling
Reliability theory
Condition monitoring
Electric power plants
Electric power systems
Electric power transmission networks
Monitoring
Nuclear energy
Nuclear engineering
Nuclear industry
Nuclear power plants
Plant shutdowns
Power transmission
Preventive maintenance
Probability
Pumps
Quality assurance
Reliability
Response time (computer systems)
(e
2e) theory
(e
3e) process
(I
J) conditions
Applied (CO)
case studies
Conditional reliability
international conferences
Monitoring data
Operating environment
Optimal decisions
power systems
Probabilistic methods
Proportional hazards
reactor cooling
Reliability functions
Shaft sealing
Power plants

Lindquist, TommieKTH,Elektroteknisk teori och konstruktion(Swepub:kth)u1d7b7tv (författare)
Garnero, M. -A (författare)
Chevalier, R. (författare)
Jardine, A. K. S. (författare)
KTHElektroteknisk teori och konstruktion (creator_code:org_t)

Av författaren/redakt...: Montgomery, N.; Lindquist, Tommi ...; Garnero, M. -A; Chevalier, R.; Jardine, A. K. S ...

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