What is it about?
Overheating caused by failing to quickly disperse heat generated during engineering system operation might cause system failure. The mechanism must release heat into the environment. The increased surface area improved heat transmission in many applications. Engineers increased the heat transmission surface area without reducing the device surface area by using metal fins in various ways. Fins enhance a device's weight, bulk, and production cost. Fin geometry optimization has become popular recently.
Featured Image
Photo by Aaron Lefler on Unsplash
Why is it important?
This study examines how Nusselt, Reynolds number, and pressure drop affect the thermal performance of pierced pin fins with a certain number of holes. Forced convection can enhance uniform pin fin surface area, heat transfer coefficient, and thermal boundary layer thickness. Circular perforations cut the fin body. This study investigates perforated and augmented fins on a board that generates heat, is subjected to forced convection, and has the best fin performance perforation. One of the CFD programs will also calculate the effects of Nusselt, Reynolds number, pressure drop, and perforation number. This study examines how perforated and enhanced fins affect heat sink heat transmission.
Perspectives
It is advised that the geometry be optimized for future research in terms of spacing, height, and base size, among other things. Furthermore, the boundary condition in the CFD simulation setup required to be modified, which could be the source of the mistake.
Wadhah Hussein Al Doori
Tikrit University
Read the Original
This page is a summary of: Effects of Nu, Re, and ΔP on the thermal performance of experimentally and numerically perforated pin fins, January 2023, American Institute of Physics,
DOI: 10.1063/5.0167699.
You can read the full text:
Resources
The effect of fin height on forced convection heat transfer from rectangular fin array
The effect of fin height on the efficiency and heat transfer coefficient in which heat is transferred from the heat sink to the environment, and also to study the effect of fin position with high forward air velocity and altitudes on a thermal characteristic.
Effect of the Circular Perforations on the Heat Transfer Enhancement by the Forced Convection from the Rectangular Fins
This study aims to investigate the effect of the circular perforation of the rectangular fin on the enhancement of the heat transfer by forced convection. The parameters taken into consideration are thermal properties and geometrical dimensions of the fin and its perforations. The area and heat transfer gain of the perforations fins were considered being the main parameters in this study.
Effect of Using Various Longitudinal Fin Number In Finned Channel Heat Exchangers On Heat Flow Characteristics
This paper presents the air-side overall heat transfer coefficient and pressure drop characteristics for finned channel with various longitudinal fins number. The computational fluid dynamics analysis with ANSYS Fluent software was applied for the analysis of the heat transfer.
Numerical estimation of pressure drop and heat transfer characteristics in annular-finned channel heat exchangers with different channel configurations
Three-dimensional analysis has been used to study the effect of finned channels configuration of (circular, square, and triangular shape) and fin spacing with four rows in staggered arrangements. The finite volume method with k- ω turbulent model is applied to estimate the heat transfer and flow characteristics. The results illustrate that the development of the boundary layer between the fins surfaces is credited to the finned channels configuration, fin spacing, and Reynolds number.
Experimental and numerical investigation of heat transfer augmentation in heat sinks using perforation technique
This study aims at experimentally and numerically evaluating the performance of fins with and without perforated geometry under forced convection heat transfer. The effect of the circular perforations at different perforation number and size, airflow velocity, and different input powers on the thermal and hydraulic performance of those fins.
The impact of square shape perforations on the enhanced heat transfer from fins: Experimental and numerical study
Heat sinks are widely adopted as heat transfer boosters for their role in promoting heat transfer surface area. To enhance the thermal behaviour of heat sinks under forced convection heat transfer, perforated fins are utilized. In the present investigation, the effect of utilizing the square perforation technique has been experimentally and numerically investigated. The study was conducted for different numbers of perforations.
The Effect of Varying Tube Diameters on Enhancement Heat Transfer by Forced Convection Through a Horizontal Tube
Forced convection (FC) is one of the important topics in engineering applications. Therefore, the process of improving the convection heat transfer coefficient (CHC) and determining the factors causing it has become a subject of interest to researchers. One enhancement approach is the varying dimension of the flow conduit. The present work involved the experimental study of forced convection inside copper cylinder fixed horizontally with varying heat flux and diameter.
Enhancement of Perforated Pin-Fins Heat Sink under Forced Convection
Study is to investigate and analyze the uniform pin fins used for cooling of electronic devices in forced convection environment with perforations and augmentation that may provide an increase of the area of heat transfer, heat transfer coefficient, decreasing the thickness of thermal boundary layer. An experimental study conducted to investigate heat transfer by forced convection in a pin fin with circular perforations as heat sinks.
Perforated Pin Fins Array for Forced Convective Heat Transfer
High-speed multifunctional electronics are being increasingly miniaturized, necessitating more severe temperature management. The use of perforated pin fins to improve the rate of heat transfer in these devices is investigated experimentally and computationally in this paper. The effects of the number of holes and perforation diameter on each pin are explored in particular.
Experiments and Numerical Investigations for Heat Transfer from a Horizontal Plate via Forced Convection Using Pin Fins with Different Hole Numbers
This study focuses on perforated pin fin convection heat transfer. This study's goal is to see if perforated pin fins may help transmit heat. Perforation diameter and hole count are evaluated on each pin. The Nusselt number of perforated pins
Forced Convection Heat Transfer Enhancement from Heat Sinks using Perforated Fins: A Review
The present review paper focus on the analysis of the heat transfer enhancement and the considerable pressure drop below a flat surface equipped with Various forms of perforated fins in a rectangular channel. Heat sinks are widely employed in electronics industries for lowering the temperature to avoid any damage of integrated circuits and improve its overall performance. Fins play key role in heat sinks.
Enhancement of Natural Convection Heat Transfer from the Rectangular Fins by Circular Perforations
An experimental study was conducted to investigate heat transfer by natural convection in a rectangular fin plate with circular perforations as heat sinks. The patterns of the perforations included circular different perforations (holes).
Contributors
The following have contributed to this page
