Safe Remaining Lifetime Assessment Of Power
Plant Steam Boilers
Author(s)
V. Mentl & V. Liska
Abstract
Energy producing power plants are designed for an operational period of 20–30
years. During this period, inspections are realized to investigate the operational
capability of the respective components and the plant as a whole, and when the
designed time is approaching its limit, crucial questions are raised with respect to
the continuing possible operation, and its safety and risks that stem from the fact
that the continuous degradation of material property has occurred during the
lifetime of service as a result of service conditions, e.g. high temperatures,
fatigue loading etc.
The inspection of the boiler and the assessment of its future operational
capability should ensure the safe operation and minimization of the failure risks
that can cause not only economic losses.
This paper summarizes the results of non-destructive (NDT) and destructive
mechanical and metallographic tests performed in order that the degradation of
material property of the decisive Steam Turbine Boiler Components due to
service conditions could be evaluated and the resulting residual lifetime assessed.
On the basis of performed examination, the results provided the customer with
recommendations relating to the future safe and reliable operation of the boiler.
Keywords: material degradation, remaining safe lifetime assessment, steam
turbine boiler components.
Keywords
material degradation, remaining safe lifetime assessment, steam
turbine boiler components.
Related Book
Other papers in this volume
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