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Open AccessArticle

Application of the Protective Coating for Blade’s Thermal Protection

1
Institute of Thermal Engineering, Poznan University of Technology, 60-965 Poznan, Poland
2
Faculty of Mechatronics and Aerospace, Military University of Technology, 00-908 Warsaw, Poland
*
Author to whom correspondence should be addressed.
Energies 2021, 14(1), 50; https://doi.org/10.3390/en14010050
Received: 7 November 2020 / Revised: 19 December 2020 / Accepted: 21 December 2020 / Published: 24 December 2020
(This article belongs to the Special Issue Turbine Blade Optimization)
This paper presents an algorithm applied for determining temperature distribution inside the gas turbine blade in which the external surface is coated with a protective layer. Inside the cooling channel, there is a porous material enabling heat to be transferred from the entire volume of the channel. This algorithm solves the nonlinear problem of heat conduction with the known: heat transfer coefficient on the external side of the blade surface, the temperature of gas surrounding the blade, coefficients of heat conduction of the protective coating and of the material the blade is made of as well as of the porous material inside the channel, the volumetric heat transfer coefficient for the porous material and the temperature of the air flowing through the porous material. Based on these data, the distribution of material porosity is determined in such a way that the temperature on the boundary between the protective coating and the material the blade is made of is equal to the assumed distribution To. This paper includes results of calculations for various thicknesses of the protective coating and the given constant values of temperature on the boundary between the protective coating and the material the blade is made of. View Full-Text
Keywords: the inverse problem of heat conduction; cooling of gas turbine blades; porous material the inverse problem of heat conduction; cooling of gas turbine blades; porous material
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MDPI and ACS Style

Frąckowiak, A.; Olejnik, A.; Wróblewska, A.; Ciałkowski, M. Application of the Protective Coating for Blade’s Thermal Protection. Energies 2021, 14, 50. https://doi.org/10.3390/en14010050

AMA Style

Frąckowiak A, Olejnik A, Wróblewska A, Ciałkowski M. Application of the Protective Coating for Blade’s Thermal Protection. Energies. 2021; 14(1):50. https://doi.org/10.3390/en14010050

Chicago/Turabian Style

Frąckowiak, Andrzej; Olejnik, Aleksander; Wróblewska, Agnieszka; Ciałkowski, Michał. 2021. "Application of the Protective Coating for Blade’s Thermal Protection" Energies 14, no. 1: 50. https://doi.org/10.3390/en14010050

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