MODERN AND PERSPECTIVE METHODS OF INTERNAL COOLING OF GAS TURBINE BLADES


  • А.А. Khalatov Institute of Engineering Thermophysics of the National Academy of Sciences of Ukraine
  • І.І. Borisov Institute of Engineering Thermophysics of the National Academy of Sciences of Ukraine
  • S.B. Kulishov Industrial Machinery Manufacturing «Zorya-Mashproekt»
Keywords: gas turbine blades, thermal protection, internal cooling, development trends.

Abstract

Considered and analyzed schemes of internal cooling of gas turbine blades starting from their initial application to the present time. Systematized methods of cooling the leading edge, the middle part and the trailing edge. The methods of heat transfer augmentation, which are used in blade cooling systems, are analyzed. An analysis of perspective methods of internal cooling was performed. Among them, we can single out cyclone cooling and the use of dimples on the surfaces of the channels. These technologies provide the high thermo-hydraulic performance of cooling channels. It is shown that the main trend of the development of cooling systems is the use of microchannel schemes, with the maximum approach of the cooling channels to the outer surface of the blade. These methods become possible due to the development of new casting technologies and additive technologies.

References

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Published
2022-12-21
How to Cite
KhalatovА., BorisovІ., & Kulishov, S. (2022). MODERN AND PERSPECTIVE METHODS OF INTERNAL COOLING OF GAS TURBINE BLADES. Thermophysics and Thermal Power Engineering, 44(4), 14-23. Retrieved from https://ihe.nas.gov.ua/index.php/journal/article/view/508
Issue
Vol 44 No 4 (2022): Thermophysics and Thermal Power Engineering
Section
Articles
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