Virtual Age Model for Equipment Aging Plant Based on Operation Environment and Service State

The accelerated life model based on the operation environment and service state was established by taking the virtual age as the equipment aging indices.The effect of different operation environments and service states on the reliability and virtual age under the continuum operation conditions and cycle operation conditions were analyzed,and the sensitivities of virtual age on operational environments and service states were studied.The results of the example application show that the effect of NPP equipment lifetime and the key parameters related to the reliability can be quantified by this model,and the result is in accordance with the reality.