scholarly journals Comparative analysis on heat transfer of various fin profile using solid works: A systematic review

2021 ◽  
Vol 850 (1) ◽  
pp. 012029
Author(s):  
Vaishnav Madhavadas ◽  
Dibyarup Das ◽  
Kaustubh Anand Mohta ◽  
S. Senthur Prabu
Keyword(s):  
Heat Transfer ◽  
Systematic Review ◽  
Convection Heat Transfer ◽  
Object Surface ◽  
Pin Fin ◽  
Number Of Factors ◽  
Different Types ◽  
Extended Surfaces ◽  
Solid Works ◽  
Shape And Size

Abstract Fins are widely used to enhance the amount of heat transfer by improving the rate of convection heat transfer. Fins are also known as extended surfaces, i.e., extrusions from the object surface. There are numerous kinds of fins, and based on the shape and size, the amount of heat transfer through the fins will differ. Heat transfer depends upon the geometry of the fin and depends upon a number of factors such as the nature of the fin surface, the ambient temperature; the velocity of the air, etc. In this present study, the systematic review is carried out by critically analyzing the different types of fin profile such as plain rectangular fin, wavy fin, circular pin fin, and rectangular pin fin to increase the fins efficiency. The outcome from this study reveals that the heat transferred by the fins is mainly dependent on the fins profile (type and shape), length, angle, and surface area. Alongside the orientation of the fins, porosity, thermo-geometry also affects the fins’ efficiency.

Experimental and Numerical Investigation of Natural Convection Heat Transfer From Horizontal Rectangular Plate Fin Pin Fin Arrays

2020 ◽  
Author(s):  
Sunil V. Dingare ◽  
Narayan K. Sane ◽  
Ratnakar R. Kulkarni
Keyword(s):  
Heat Transfer ◽  
Nusselt Number ◽  
Natural Convection ◽  
Numerical Model ◽  
Convection Heat Transfer ◽  
Natural Convection Heat Transfer ◽  
Convection Heat ◽  
Pin Fin ◽  
Pin Fins ◽  
Fin Spacing

Abstract Fins are commonly employed for cooling of electronic equipment, compressors, Internal Combustion engines and for heat exchange in various heat exchangers. In short fin (length to height ratio, L/H = 5) arrays used for natural convection cooling, a stagnation zone forms at the central portion and that portion is not effective for carrying away heat. An attempt is made to modify plate fin heat sink geometry (PFHS) by inserting pin fins in the channels formed between plate fins and a plate fin pin fin heat sink (PFPFHS) is constructed to address this issue. An experimental setup is developed to validate numerical model of PFPFHS. The three-dimensional elliptic governing equations were solved using a finite volume based computational fluid dynamics (CFD) code. Fluent 6.3.26, a finite volume flow solver is used for solving the set of governing equations for the present geometry. Cell count based on grid independence and extended domain is used to obtain numerical results. Initially, the numerical model is validated for PFHS cases reported in the literature. After obtaining a good agreement with results from the literature, the numerical model for PFHS is modified for PFPFHS and used to carry out systematic parametric study of PFPFHS to analyze the effects of parameters like fin spacing, fin height, pin fin diameter, number of pin fins and temperature difference between fin array and surroundings on natural convection heat transfer from PFPFHS. It is observed that it is impossible to obtain optimum performance in terms of overall heat transfer by only concentrating on one or two parameters. The interactions among all the design parameters must be considered. This thesis presents Experimental and Numerical study of natural convection heat transfer from horizontal rectangular plate fin and plate fin pin fin arrays. The parameters of study are fin spacing, temperature difference between the fin surface and ambient air, fin height, pin fin diameter, number of pin fins and method of positioning pin fins in the fin channel. Experimental set up is validated with horizontal plate standard correlations. Results are generated in the form of variation in average heat transfer coefficient (ha), base heat transfer coefficient (hb), average Nusselt number (Nua) and base Nusselt number (Nub). Total 512 cases are studied numerically and finally an attempt is made to correlate the Nusselt Number (Nu), Rayleigh Number (Ra), increase in percentage by inserting pin fins (% Area), ratios like spacing to height (S/H) and L/H obtained in the present study.

Heat Transfer Analysis of Solid and Perforated Fins in Regular Arrangement

2019 ◽  
Vol 16 (10) ◽  
pp. 4262-4265
Author(s):  
Rupesh Gupta ◽  
Varinder Singh ◽  
Sheifali Gupta ◽  
Deepali Gupta
Keyword(s):  
Heat Transfer ◽  
Reynolds Number ◽  
Heat Transfer Analysis ◽  
Pin Fin ◽  
Cross Section Area ◽  
Section Area ◽  
Regular Arrangement ◽  
Pin Fins ◽  
Extended Surfaces ◽  
Rectangular Chamber

Extended surfaces are widely used in various applications like aerospace parts design, cooling and also in solar collectors for effective dissipation of heat. The present paper gives us an idea about the heat transfer analysis for solid pin fin and perforated pin fins that are fitted in a rectangular chamber. The rectangular chamber has a cross section area of 300 * 200 mm2. It is concluded from the experiment that perforated pin fin always works better as compared to solid pin fin in all conditions. Moreover, for lower range of Reynolds number, solid pin fin performs better whereas for higher range of Reynolds number, perforated pin fin performs better as compared to circular pin fin.

scholarly journals Effect of an axial hole on natural convection heat transfer from a cylindrical pin fin attached to a horizontal plate

2018 ◽  
Vol 22 (6 Part A) ◽  
pp. 2493-2502
Author(s):  
Saurav Manna ◽  
Subhas Haldar ◽  
Subrata Ghosh
Keyword(s):  
Heat Transfer ◽  
Natural Convection ◽  
Convection Heat Transfer ◽  
Base Plate ◽  
Hole Diameter ◽  
Natural Convection Heat Transfer ◽  
Convection Heat ◽  
Horizontal Plate ◽  
Pin Fin ◽  
Laminar Natural Convection

Heat transfer under laminar natural convection from a hollow cylindrical fin mounted on a horizontal base plate has been numerically studied. The flow outside the fin is much stronger than that inside the hole and as a consequence the rate of heat transfer from a hollow fin is primarily due to the contribution by the outer surface of the fin. Fortunately, the rate of heat transfer is not negatively affected by the presence of the hole at the fin centre. On the contrary, when the Grashof number is higher or the hole diameter is bigger, the inside surface contributes marginally to the heat transfer. A hollow fin saves material and weighs less compared to a solid fin. So, this feature may be exploited.

scholarly journals Experimental Analysis of Pin- Fin By Varying Geometry and Material

2020 ◽  
Vol 9 (6) ◽  
pp. 704-709
Keyword(s):  
Heat Transfer ◽  
Heat Dissipation ◽  
Convection Heat Transfer ◽  
Maximum Efficiency ◽  
Pin Fin ◽  
Cross Section Area ◽  
Section Area ◽  
Efficiency And Effectiveness ◽  
Specific Temperature ◽  
Effectiveness And Efficiency

This paper aims to investigate the performance of fin effectiveness, efficiency and to improve the heat dissipation characteristics by varying fin geometries and materials. Here the system flows natural convection and forced convection heat transfer. The greatest ‘h’ value will be acquired at a specific point by changing the velocity of the fluid. Acquiring maximum efficiency and effectiveness of the pin-fin apparatus can be accomplished at a specific temperature. In this cross-section area of fins are considered as constant. The heat conveyed along the length of the fin, Reynolds number, Nusselts number, Heat Transfer coefficient, Effectiveness and Efficiency of the fins were evaluated and compared with the fluid fluent (CFD) analysis

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