Computational fluid dynamics and experimental analysis of a coated stainless steel gas turbine blade.
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Data
2019
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Resumo
This work Aims to analyze, through computational
fluid dynamics (Cfd) with the concept of conjugate heat
transfer (Cht), the effect of the Thermal Barrier coating and the
cooling systemon an Austenitic Stainless steel blade in order
to Evaluate the Temperature Behavior of the Material. Although
this Steel has a Lower cost compared to Super ALLOYS, it has
Similar Properties, Such as the Thermal Expansion Coefficient,
chemical Affinity and Melting point. this Evaluation used
Ansys® Cfx Software ot Solve the Numerical Problem. the
Systemis Validated by Comparing the computational Results
to an Experiment. Gas Turbine Blades have a low weight and
an Elevated cost. this cost came Mainly form both the Material
used and the Sophisticated coating and cooling Method.
Thermal Barrier Coatings Associated to a cooling System are
Employed on gas Turbine Blades to Increase the Lifetime of
the Blade and the gas Turbine Performance. the study
Indicates that the Thermal Barrier coating and ahe cooling
System were Efficient At Reducing the Temperature of the
Metallic Substrate By 160°C. this can Indicated that Stainless
steel Blades can be used in gas turbines where the Metallic
Temperature limit was not be reached.
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Palavras-chave
Conjugate heat transfer, Thermal barrier coating
Citação
SOUZA, L. A. et al. Computational fluid dynamics and experimental analysis of a coated stainless steel gas turbine blade. Global Journal of Researches in Engineering: A Mechanical and Mechanics Engineering, v. 19, n. 3, 78/52019. Disponível em: <https://engineeringresearch.org/index.php/GJRE/article/view/1958>. Acesso em: 10 mar. 2020.