scholarly journals Heat Conduction Problems in a Homogeneous Pipe with Inner Nonhomogeneous Coating

2021 ◽  
Vol 39 (1) ◽  
pp. 23-31
Author(s):  
Roman Kulchytsky-Zhyhailo ◽  
Stanisław J. Matysiak ◽  
Dariusz M. Perkowski
Keyword(s):  
Thermal Properties ◽  
Heat Conduction ◽  
Heat Loss ◽  
Coating Thickness ◽  
Pipe Surface ◽  
Multilayered Coatings ◽  
Stationary Heat ◽  
Special Cases ◽  
Piecewise Continuous ◽  
Stationary Heat Conduction

The paper deals with the analysis of nonhomogeneous inner coatings for a homogeneous pipe with respect of heat loss from the outer pipe surface. Two kinds of the coatings in the form of ring layers are considered: (1º) with the thermal properties changing continuously along the coating thickness (called the coating A), (2º) multilayered coatings with piecewise continuous thermal properties (called the coatings B). The analysis is connected with the stationary heat conduction problems. Some special cases of the coatings A and B are investigated. The obtained analytical results and the comparison of the coatings are presented.

scholarly journals Stationary heat conduction in a solid with functionally graded thermal properties

2019 ◽  
Vol 28 (4) ◽  
pp. 539-546
Author(s):  
Vazgen Bagdasaryan ◽  
Jan Szołucha
Keyword(s):  
Thermal Conductivity ◽  
Thermal Properties ◽  
Heat Conduction ◽  
Finite Difference Method ◽  
Numerical Solutions ◽  
Functionally Graded ◽  
Two Dimensional ◽  
Stationary Heat ◽  
Stationary Heat Conduction ◽  
The Finite Difference Method

In the paper the solutions for stationary heat conduction in a two dimensional composite with functionally graded heat properties were obtained. Numerical solutions for the taken boundary conditions are shown for several types of changes of composite’s thermal conductivity. The solutions were obtained with the use of the finite-difference method.

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