Exact, analytical heat transfer from longitudinal radiating fins of rectangular profile in a tube/fin ensemble

Heat Transfer ◽  
2021 ◽  
Author(s):  
Elyas Shivanian ◽  
Antonio Campo
Keyword(s):  
Heat Transfer ◽  
Rectangular Profile

Conduction from Longitudinal Fin of Rectangular Profile with Exponential Vary Heat Transfer Coefficient

2012 ◽  
Vol 614-615 ◽  
pp. 311-314
Author(s):  
Hua Jun Zhang ◽  
Kun Feng Sun
Keyword(s):  
Heat Transfer ◽  
Heat Transfer Coefficient ◽  
Transfer Coefficient ◽  
Surface Heat ◽  
Engineering Practice ◽  
Surface Heat Transfer ◽  
Rectangular Profile ◽  
Surface Heat Transfer Coefficient ◽  
Flux Formula ◽  
The Mathematical Model

Fin widely used in industrial practice, and the surface heat transfer coefficient is not constant value. In this paper, through appropriate simplification, the mathematical model in Longitudinal Fin of Rectangular Profile has been established, When the surface heat transfer coefficient along the fin in the exponential changes. The exact solution of fin conduction has been get, and derived efficiency and the corresponding fin heat flux formula. And an example has been given to verify. The solution can be applied to engineering practice, and guided theoretical the heat transfer enhancement in the design of fin.

scholarly journals Natural convection and radiation in a radial porous fin with variable thermal conductivity

2014 ◽  
Vol 19 (1) ◽  
pp. 27-37 ◽  
Author(s):  
M.T. Darvishi ◽  
F. Kani ◽  
R.S.R. Gorla
Keyword(s):  
Heat Transfer ◽  
Thermal Conductivity ◽  
Natural Convection ◽  
Convection Heat Transfer ◽  
Variable Thermal Conductivity ◽  
Dimensionless Temperature ◽  
Porous Fin ◽  
Rectangular Profile ◽  
Conductivity Parameter ◽  
Effects Of Radiation

Abstract In this study, the effects of radiation and convection heat transfer in a radial porous fin are considered. The geometry considered is that of a rectangular profile fin. The porous fin allows the flow to infiltrate through it and solid-fluid interaction takes place. This study is performed using Darcy’s model to formulate the heat transfer equation. The thermal conductivity is assumed to be a function of temperature. The effects of the natural convection parameter Nc , radiation parameter Nr and thermal conductivity parameter m on the dimensionless temperature distribution and heat transfer rate are discussed. The results suggest that the radiation transfers more heat than a similar model without radiation

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