プラント機器の取替・点検周期の最適化
Optimization on Replacement and Inspection Period of Plant Equipment
著者:
高瀬 健太郎 Kentaro TAKASE 笠井 雅夫 Masao KASAI
発刊日:
公開日:
corrective replacementdegradation of the equipmentinspectionmaintenanceoptimization of replacement periodpreventive replacementrisk
概要
Rationalization of the plant maintenance is one of the main topics being investigated in Japanese nuclear power industries. Optimization of the inspection and replacement period of equipments is effective for the maintenance cost reduction. The more realistic model of the replacement policy is proposed in this study. It is based on the classical replacement policy model and its cost is estimated. Then, to consider the inspection for the maintenance, the formulation that includes the risk concept is discussed. Based on it, two variations of the combination of the inspection and the replacement are discussed and the costs are estimated. In this study the effect of the degradation of the equipment is important. The optimized maintenance policy depends on the existence of significant degradation.
