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Optimum Replacement Times for a Steam Generator  

Hur, Jung-Hoon (Korea Electric Power Co.)
Yun, Won-Young (Department of Indistrial Engineering, Pusan National University)
Publication Information
IE interfaces / v.15, no.1, 2002 , pp. 89-98 More about this Journal
Abstract
This paper considers the optimum replacement times of a steam generator in nuclear power plant with failure data. It is assumed that the failure pattern of units is given as a Weibull distribution and repair and periodic preventive maintenance are performed periodically. The maximum likelihood method is used to estimated the Weibull parameters of failure distribution from failure data. Relpacement, output-decresing and maintenance costs are considered to determine the optimal replacement times by simulation. Numerical examples are included with actual failure data and cost estimators.
Keywords
stem generators; optimum replacement times; weibull distribution; maintenance costs; simulation;
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