Scheduled maintenance
Combined-cycle power plant - Functioning, operation, example

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Scheduled maintenance


Combined-cycle power plant - Functioning, operation, example

Author : Jean-Marie MONTEIL

Publication date: January 10, 2004 | Lire en français

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3. Scheduled maintenance

Maintenance operations on any industrial plant can be divided into two categories:

  • palliative maintenance (repair strictly in response to damage);

  • preventive maintenance (repairs carried out before damage occurs and scheduled according to a method for assessing the degradation of the weakened part).

This paragraph explains why sophisticated methods are used to determine preventive maintenance operations on combined-cycle power plants, but mainly on combustion turbines.

Combustion turbines, whether installed as stand-alone units or in combined-cycle power plants, are designed to generate peak or semi-base load energy, or even to back-up the power grid. As such, they need to be up and running quickly, which places high thermomechanical demands on the...

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