Application of the Protective Coating for Blade’s Thermal Protection
| Autor: | Aleksander Olejnik, Michał Ciałkowski, Agnieszka Wróblewska, Andrzej Frąckowiak |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Control and Optimization
Materials science cooling of gas turbine blades Blade (geometry) 020209 energy Energy Engineering and Power Technology 02 engineering and technology Heat transfer coefficient engineering.material lcsh:Technology the inverse problem of heat conduction porous material Physics::Fluid Dynamics 0203 mechanical engineering Coating 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering Composite material Porosity Engineering (miscellaneous) Renewable Energy Sustainability and the Environment lcsh:T Thermal conduction Nonlinear system 020303 mechanical engineering & transports Volume (thermodynamics) engineering Layer (electronics) Energy (miscellaneous) |
| Zdroj: | Energies, Vol 14, Iss 50, p 50 (2021) Energies; Volume 14; Issue 1; Pages: 50 |
| ISSN: | 1996-1073 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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