E224 Development of Non-Destructive Evaluation Method for Heat Resistance of TBC on Gas Turbine Blade
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- OZEKI Takayuki
- Central Research Institute of Electric Power Industry
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- FUJII Tomoharu
- Central Research Institute of Electric Power Industry
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- SAKAI Eiji
- Central Research Institute of Electric Power Industry
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- FUKUCHI Tetsuo
- Central Research Institute of Electric Power Industry
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- FUSE Norikazu
- Central Research Institute of Electric Power Industry
Bibliographic Information
- Other Title
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- E224 ガスタービン翼を対象としたTBC遮熱性能非破壊評価法の開発(OS7 高温・高効率発電)
Abstract
A non-destructive method for evaluating the heat resistance of a TBC has been developed for gas turbine blades. In this method, a robot arm controls the position of CO_2 laser beam along the topcoat surface. The laser beam heats the topcoat surface in the vertical direction while maintaining the laser source at a fixed distance from the surface, and the topcoat surface temperature is measured by an infrared camera. Subsequently, to derive an expression for the relationship between the heat resistance and the topcoat surface temperature, three-dimensional analysis of the unsteady heat conduction is performed under practical heating condition. This measured temperature and this relational expression estimate the heat resistance. This method was applied to the cylindrical TBC sample which simulates curvature of gas turbine blade and the heat resistance of the TBC was evaluated under various conditions. The suitable heating condition for this method was decided by these test results. In addition, the results showed that if the measurement error of the topcoat thickness is reduced, the accuracy of this method will be improved.
Journal
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- The Proceedings of the National Symposium on Power and Energy Systems
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The Proceedings of the National Symposium on Power and Energy Systems 2012.17 (0), 413-416, 2012
The Japan Society of Mechanical Engineers
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Details 詳細情報について
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- CRID
- 1390001205886087552
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- NII Article ID
- 110009919737
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- ISSN
- 24242950
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed