Open AccessCOMBUSTION TURBINE (CT) HOT SECTION COATING LIFE MANAGEMENT
Author(s) -
David Gandy,
R. Viswanathan,
S. Cheruvu,
K. Krzywosz
Publication year - 2006
Publication title -
osti oai (u.s. department of energy office of scientific and technical information)
Language(s) - English
Resource type - Reports
DOI - 10.2172/888937
Subject(s) - task (project management) , reliability (semiconductor) , combustion , computer science , coating , field (mathematics) , stress (linguistics) , measure (data warehouse) , reliability engineering , mechanical engineering , forensic engineering , environmental science , process engineering , engineering , materials science , systems engineering , composite material , chemistry , data mining , mathematics , physics , power (physics) , linguistics , organic chemistry , philosophy , quantum mechanics , pure mathematics
The integrity of coatings used in hot section components of combustion turbines is crucial to the reliability of the buckets. This project was initiated in recognition of the need for predicting the life of coatings analytically, and non-destructively; correspondingly, four principal tasks were established. Task 1, with the objective of analytically developing stress, strain and temperature distributions in the bucket and thereby predicting thermal fatigue (TMF) damage for various operating conditions; Task 2 with the objective of developing eddy current techniques to measure both TMF damage and general degradation of coatings and, Task 3 with the objective of developing mechanism based algorithms. Task 4 is aimed at verifying analytical predictions from Task 1 and the NDE predictions from Task 3 against field observations
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