4 edition of Recent Advances in Analysis of Heat Transfer for Fin Type Surfaces (Developments in Heat Transfer Vol. 5) found in the catalog.
October 29, 1999
by Computational Mechanics, Inc.
Written in English
|Contributions||Bengt Sunden (Editor), P. J. Heggs (Editor)|
|The Physical Object|
|Number of Pages||293|
2. To develop algorithms for heat transfer analysis of fins with different geometries. 3. Extended Surfaces for Heat Transfer Fin equations The rate of hear transfer from a surface at a temperature Ts to the surrounding medium at T∞ is given by Newton's law of cooling as 𝑣 = hA conv (T s - T∞) (1) Where. R. S. Kalase et al Review on Heat Transfer Enhancement of A Plate Fin Type Heat Exchanger By Different Shapes of Fins. | MITCOE, & DIAT, Pune, AMET, IJCET INPRESSO Special Issue-7 (March ) numerical solution. Various results suggest that CFD have been proved very effective in reducing production time and cost.
2 Fundamentals of Heat Transfer 1 Design of Finned Tubes 1 Fin Efficiency 3 Plain Geometry 4 Finned Tubes 7 Special Consideration in the Calculation of Heat Transfer 10 3 Equations for the External Heat Transfer Coefficient 12 Staggered Tube Arrangements 12 Overview of Equations Fin efficiency is the ratio of heat transfer from the actual fin to the heat transfer of an imaginary fin of the same geometry and same conditions but with an infinite conductivity (In other words, if the entire fin surface was in a temperature equal to that of the fin base). This ratio will always be smaller than one. fin efficiency Equation.
HT-7 ∂ ∂−() = −= f TT kA L 2 AB TA TB 0. () In equation (), k is a proportionality factor that is a function of the material and the temperature, A is the cross-sectional area and L is the length of the bar. In the limit for any temperature difference ∆T across a length ∆x as both L, T A - . Figure 2 shows the fin temperature distribution under the condition of NTU f = and uniform heat transfer coefficient, which satisfies the all assumptions of the classical fin efficiency. Here the number of heat transfer units of the fin NTU f is the number of heat transfer units for the fin: NTU f =Ahm& a c p (6) where A and m& a c.
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Recent Advances in Analysis of Heat Transfer for Fin Type Surfaces Buy book Edited By: B. Sundén, Lund Institute of Technology, Sweden and P.J. Heggs, UMIST, UK. Summary: Extended surfaces like fins are frequently employed in engineering applications to enhance the heat transfer performance.
This work presents recent advances in modelling the thermal phenomena in single fins, fin assemblies and analysis of transient operating conditions, and more. The current fin industries are working with a prime goal to reduce the overall dimensions of the fins with enhancement of the heat transfer rate per unit weight of the fins.
To meet the industrial demands it has become mandatory to optimize the shape and the size of the conventional fin : Saroj Yadav, Koushik Das, Krishna Murari Pandey. The fin is subject to modification with such enhanced features as vortex generators, micro-grooved fins, or the use of other fin shapes for enhancing heat transfer as reported by a number of authors including Joardar and Jacobi,Yu et al.,Kundu et al.,Mader et al.,Moinuddin et al., and Sharqawy et al.
().Cited by: Aldoss et al. introduced this novel type of heat transfer enhancement technique for the first time, and numerically estimated and compared the thermal performance of a liquid metal capsulated fin with that of a conventional solid fin, investigating the effect of several design and operating parameters.
Two equal-size geometries for the capsulated fins longitudinal sectional area were considered: the rectangular and the half-circular by: The use of fin (extended surface) with extensions, provide efficient heat transfer: Fin with extensions provide near about 5 % to 13% more enhancement of heat transfer as compare to fin without extensions.
Heat transfer through fin with rectangular extensions higher than that of fin with other types. •Finned surfaces are commonly used in practice to enhance heat transfer •In the analysis of fins, we consider steady operation with no heat generation •in the fin, and we assume the thermal conductivity k of the material to remain constant.
•We also assume the convection heat transfer coefficient h. Finned surfaces are commonly used in practice to enhance heat transfer. In the analysis of the fins, we consider steady operation with no heat generation in the fin. We also assume that the convection heat transfer coefficient h to be constant and uniform over the entire surface of the fin.
The rate of heat transfer from a solid surface to. = 1: Fin does not affect the heat transfer at all. (ii) ε 1: Fin act as insulation (if thermal conductivity (k) of fin material is low).
(iii) ε 1: Heat transfer will be increased. Also, 1. ε fin √ 2. ε fin √ 3. ε fin √ Note: 1. Fins are generally used where convection heat transfer coefficient (h) values are relatively low i.e.
2 Heat Transfer From a Fin Fins are used in a large number of applications to increase the heat transfer from surfaces. Typically, the fin material has a high thermal conductivity.
The fin is exposed to a flowing fluid, which cools or heats it, with the high thermal conductivity allowing increased heat being conducted from the wall through. Developments In Heat Transfer, Volume 5: Recent Advances in Analysis of Heat Transfer for Fin Type Surfaces by Bengt Sundén (Editor) avg rating — 0 ratings.
Sundén, Lund Institute of Technology, Sweden and M. Faghri, ISBN. * Covers compact heat exchangers, periodic heat flow, boiling off finned surfaces, and other essential topics.
Author Bios Allan D. Kraus, PhD, is Professor of Mechanical Engineering at the University of Akron, Ohio, and is principal associate at Allan D. Kraus Associates. International Journal of Recent advances in Mechanical Engineering (IJMECH) Vol.2, No.3, August 13 MAXIMISING THE HEAT TRANSFER THROUGH FINS USING CFD AS A TOOL Sanjay Kumar Sharma 1 and Vikas Sharma 2 1,2 Assistant Professor, Department of Mechanical Engineering, Gyan Vihar University, Jaipur, Rajasthan, India.
ture, heat transfer rate is increased by increasing heat transfer coefficient or by heat transfer area. In case of natural convec-tion there is only scope for increasing heat transfer area by providing finned surfaces. The enhancement ratio of heat transfer depends on the fins orientations and the geometric parameters of fin arrays.
Heat transfer analysis on a Triangular fin conducted by Sandhya Mirapalli Kishore P.S  shows that the triangular fins are attractive since for an equal heat transfer it requires lesser volume.
A fin is a surface that extends from an object to increase the rate of heat transfer to or from the environment by increasing convection heat transfer, The term (extended surface) is commonly used.
Recent Advances in Analysis of Heat Transfer for Fin Type Surfaces, WIT Press, Southampton, UK/Boston, MA. Numerical Analysis on Heat Removal From Y-Shaped Fins: Efficiency and Volume Occupied for a New Approach to Performance Optimisation,”. This paper shows a numerical approach, based on computational fluid dynamics (CFD) software, for the evaluation of the heat exchange performances of finned (straight fins) surfaces made of highly heat conductive material.
The same geometric constraints assumed in a reference work were adopted. Purchase Advances in Heat Transfer, Volume 21 - 1st Edition. Print Book & E-Book. ISBN. Advances in Heat Transfer, Vol provides in-depth review articles from a broader scope than in traditional journals or texts, with this comprehensive release covering chapters on Thermal Convection Studies at the University of Minnesota, Convective heat transfer in porous passages that depends on the values of the Sparrow numbers, Automatic Code Differentiation for Thermal-Fluid Problems.
Book Description. Completely revised and updated to reflect current advances in heat exchanger technology, Heat Exchanger Design Handbook, Second Edition includes enhanced figures and thermal effectiveness charts, tables, new chapter, and additional topics––all while keeping the qualities that made the first edition a centerpiece of information for practicing engineers, research.
Analysis of Heat Transfer for Varying Surface Fin Gayatree Behura, Banamali Dalai. Abstract-Study of one dimensional steady heat conduction equation along the length of the fin is conducted on varying cross-section.
The heat transfer from the base of the fin is due to conduction and from the surface to the atmosphere is due to convection.