The paper has been intended to discuss non-destructive testing methods and to present capabilities of applying them to diagnose objectively changes in the microstructure of a turbine blade with computer software engaged to assist with the analyses. The following techniques are discussed: a visual method, based on the processing of images of the material surface in visible light, active thermography, based on the detection of infrared radiation, and the X-ray computed tomography. All these are new non-destructive methods of assessing technical condition of structural components of machines. They have been intensively developed at research centers worldwide, and in Poland. The computer-aided visual method of analyzing images enables diagnosis of the condition of turbine blades, without the necessity of dismantling of the turbine. On the other hand, the active thermography and the X-ray computed tomography, although more sensitive and more reliable, can both be used with the blades dismounted from the turbine. If applied in a complex way, the non-destructive methods presented in this paper, are expected to increase significantly probability of detecting changes in the blade's condition, which in turn would be advantageous to reliability and safety of gas turbine service.


    Access

    Download


    Export, share and cite



    Title :

    Capabilities to Assess Health/Maintenance Status of Gas Turbine Blades with Non-Destructive Methods


    Contributors:


    Publication date :

    2015




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown




    Non-Destructive Testing of GRP Wind Turbine Blades

    Kenny, S. / Kurchania, R. / Ikram, S. et al. | British Library Conference Proceedings | 2005


    Apparatus and methods for maintenance of wind turbine blades

    GEORGESON GARY E / HAFENRICHTER JOSEPH L | European Patent Office | 2021

    Free access

    Apparatus and Methods for Maintenance of Wind Turbine Blades

    GEORGESON GARY E / HAFENRICHTER JOSEPH L | European Patent Office | 2019

    Free access