RWE Innovation Centre – Service life assessment
RWE Innovation Centre – Service life assessment

Assessment of real components

Requirement: Service life assessment

The challenge

  • Flexible plant use could mean actual service life of collectors in super-critical steam generators is shorter than the calculated service life
  • These collectors are constructed with a reduced wall thickness to optimise use under flexible conditions
  • The interim result from operational monitoring is that the designed service life is not being achieved.
RWE Innovation Centre – Service life assessment
RWE Innovation Centre – Service life assessment
RWE Innovation Centre – Service life assessment

Method

Step 1, R&D:

  • Generate material data and optimise calculation method
  • Base material: Scatter band analysis
  • Weld seam: Weld reduction factor
  • Flexible operation: Interactions between creep and fatigue

Step 2, Component assessment:

  • Reassessment of actual service life based on representative actual material data with new calculation methods

Objective

  • Robust service life assessment to guarantee or make existing predictions more specific

You might also be interested in

H2 readiness

An understanding of the interaction between hydrogen and the material in question is essential for hydrogen applications.

Read more

Composite materials

Condition monitoring for large GFRP components is becoming increasingly important as the length of service life increases.

Read more

Materials analysis

Necessary investigations are performed in RWE’s own materials laboratory.

Read more