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Relevant bibliographies by topics / Natural convection, rectangular fins, optimum fin spacing

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Conference papers

Academic literature on the topic 'Natural convection, rectangular fins, optimum fin spacing'

Author: Grafiati

Published: 4 June 2021

Last updated: 11 February 2022

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Journal articles on the topic "Natural convection, rectangular fins, optimum fin spacing"

1

Unni, Rajshekhar V., and Vijay S. Majali. "A Review On Rectangular Heat Sinks Under Natural Convection." Restaurant Business 118, no. 7 (2019): 44–49. http://dx.doi.org/10.26643/rb.v118i7.7245.

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In the paper review of studies of heat sinks under natural convection is taken up. The discussions are mainly on experimental works carried out on rectangular fin arrays, optimization of heat sink dimensions and heat transfer enhancement. The geometries of heat sinks, fin spacing, fin height, fin length, fin thickness and fin material and base to ambient temperature difference are the important parameters on which heat transfer rate depends. So the design and optimization of the heat sink geometries becomes essential. It was found that the optimum fin spacing is ranging from 6.1- 11.9mm which

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2

Yazicioğlu, B., and H. Yüncü. "Optimum fin spacing of rectangular fins on a vertical base in free convection heat transfer." Heat and Mass Transfer 44, no. 1 (2006): 11–21. http://dx.doi.org/10.1007/s00231-006-0207-6.

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Yazicioğlu, B., and H. Yüncü. "Optimum fin spacing of rectangular fins on a vertical base in free convection heat transfer." Heat and Mass Transfer 44, no. 1 (2007): 139. http://dx.doi.org/10.1007/s00231-007-0329-5.

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4

Panigrahi, Anwesha, D. P. Mishra, and Deepak Kumar. "Numerical Analysis of Natural Convective Heat Transfer over a Vertical Cylinder Using External Fins." Applied Mechanics and Materials 813-814 (November 2015): 707–12. http://dx.doi.org/10.4028/www.scientific.net/amm.813-814.707.

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The present numerical study deals with the natural convection heat transfer on the surface of a vertical cylinder with external longitudinal fins. The aim of the study was to determine the effects of geometric parameters like fin height, fin number and fin shape on the heat transfer and thus obtain the optimum parameters that will maximize the rate of heat transfer have been discussed. The numerical investigation consists of an aluminium cylinder of length 1m and diameter 0.07m with air as the working fluid. It has been seen from the numerical investigation that the heat transfer increases wit

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5

Kumar, Digpal, and B. Premachandran. "Optimum Arrangement of Fins in a Free Convection-Based Solar Air Heater." Journal of Solar Energy Engineering 142, no. 2 (2019). http://dx.doi.org/10.1115/1.4045198.

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Abstract In this paper, the details of a numerical study performed for the optimum fin arrangement in a solar air heater with a rectangular fin array attached to the bottom side of the absorber plate have been presented. Results have been presented for various fin sizes and spacing between the fins, while the heat transfer and fluid flow are directed by natural convection. An inclined rectangular channel similar to the dimensions of a typical solar air heater has been considered. Three different fin configurations, namely, continuous long fins for the whole length of the channel, in-line inter

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6

Tamayol, A., F. McGregor, and M. Bahrami. "Thermal Assessment of Naturally Cooled Electronic Enclosures With Rectangular Fins." Journal of Electronic Packaging 134, no. 3 (2012). http://dx.doi.org/10.1115/1.4007077.

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Passive heat transfer from enclosures with rectangular fins is studied both experimentally and theoretically. Several sample enclosures with various lengths are prepared and tested. To calibrate the thermal measurements and the analyses, enclosures without fins (“bare” enclosures) are also prepared and tested. Surface temperature distribution is determined for various enclosure lengths and heat generation rates. Existing relationships for natural convection and radiation heat transfer are used to calculate the heat transfer rate from the tested samples. The theoretical results successfully pre

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7

Karvinen, R., and T. Karvinen. "Optimum Geometry of Plate Fins." Journal of Heat Transfer 134, no. 8 (2012). http://dx.doi.org/10.1115/1.4006163.

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A method and practical results are presented for finding the geometries of fixed volume plate fins for maximizing dissipated heat flux. The heat transfer theory used in optimization is based on approximate analytical solutions of conjugated heat transfer, which couple conduction in the fin and convection from the fluid. Nondimensional variables have been found that contain thermal and geometrical properties of the fins and the flow, and these variables have a fixed value at the optimum point. The values are given for rectangular, convex parabolic, triangular, and concave parabolic fin shapes f

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8

Mulamootil, Jacob K., and Sukanta K. Dash. "Numerical Investigation of Natural Convection Heat Transfer From an Array of Horizontal Fins in Non-Newtonian Power-Law Fluids." Journal of Heat Transfer 140, no. 2 (2017). http://dx.doi.org/10.1115/1.4037537.

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Natural convection heat transfer from an array of horizontal rectangular fins on a vertical flat plate in non-Newtonian power-law fluids has been studied. The underlying physical principles affecting heat transfer were studied using comprehensive solutions obtained from numerical investigations. Heat transfer to the power-law fluid was found to depend on the fluid rheology (power-law index) and significantly on the geometric parameters (interfin spacing, fin length) as well. The dependence was quantified using the Nusselt number (Nu) and fin effectiveness (Q/Q0). The present study shows that c

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9

Verma, Shubham, and Harishchandra Thakur. "Comparison of Natural Convection Heat Transfer from a Vertical Cylinder Fitted with Annular Step Fins and Annular Triangular Fins." International Journal of Vehicle Structures and Systems 10, no. 5 (2018). http://dx.doi.org/10.4273/ijvss.10.5.12.

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Natural convection heat transfer from a vertical cylinder with annular step and triangular fins has been studied numerically at various Rayleigh numbers within the laminar range. The computations were carried at constant fin spacing to tube diameter ratio of 1. In the current study, numerical simulations of Navier-Stokes equation supported with the energy equation are conducted for a vertical cylinder with annular step fins as well as triangular annular fins using the algebraic multi-grid solver of Fluent 15. With an increase in Rayleigh number, we’ve discovered a trend that the surface Nussel

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10

Senapati, Jnana Ranjan, Sukanta Kumar Dash, and Subhransu Roy. "Three-Dimensional Numerical Investigation of Thermodynamic Performance Due to Conjugate Natural Convection From Horizontal Cylinder With Annular Fins." Journal of Heat Transfer 139, no. 8 (2017). http://dx.doi.org/10.1115/1.4035968.

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Entropy generation due to natural convection has been computed for a wide range of Rayleigh numbers based on fin spacing, RaS in the entire laminar range 5≤RaS≤108, and diameter ratio 2 ≤ D/d ≤ 5 for an isothermal horizontal cylinder fitted with vertical annular fins. Entropy generation in the tube-fin system is predominantly due to heat transfer rather than fluid friction. The results demonstrate that the degree of irreversibility is higher in the case of the finned configuration when compared with the unfinned one. With the deployment of a merit function combining the first and second laws o

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Dissertations / Theses on the topic "Natural convection, rectangular fins, optimum fin spacing"

1

Yazicioglu, Burak. "Performance Of Rectangular Fins On A Vertical Base In Free Convection Heat Transfer." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/12605699/index.pdf.

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The steady-state natural convection heat transfer from vertical rectangular fins extending perpendicularly from vertical rectangular base was investigated experimentally. The effects of geometric parameters and base-to-ambient temperature difference on the heat transfer performance of fin arrays were observed and the optimum fin separation values were determined. Two similar experimental set-ups were employed during experiments in order to take measurements from 30 different fin configurations having fin lengths of 250 mm and 340 mm. Fin thickness was maintained fixed at 3 mm. Fin height and

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2

Cakar, Kamil Mert. "Numerical Investigation Of Natural Convection From Vertical Plate Finned Heat Sinks." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12610679/index.pdf.

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The steady-state natural convection from vertically placed rectangular fins is investigated numerically by means of a commercial CFD program called ICEPAK. The effects of geometric parameters of fin arrays on the performance of heat dissipation from fin arrays are examined. In order to simulate the different fin configurations and compare the results with literature, two experimental studies from literature are selected. Optimum fin spacing for both studies are found numerically and compared with experimental studies. The models are first verified by simulating natural convection on verticall

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Conference papers on the topic "Natural convection, rectangular fins, optimum fin spacing"

1

Dingare, Sunil V., Narayan K. Sane, and Ratnakar R. Kulkarni. "Experimental and Numerical Investigation of Natural Convection Heat Transfer From Horizontal Rectangular Plate Fin Pin Fin Arrays." In ASME 2020 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/imece2020-24376.

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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 devel

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2

Mostafavi, Golnoosh, Mehran Ahmadi, and Majid Bahrami. "Effects of Geometrical Parameters on Natural Convective Heat Transfer From Vertically-Mounted Rectangular Interrupted Fins." In ASME 2012 Heat Transfer Summer Conference collocated with the ASME 2012 Fluids Engineering Division Summer Meeting and the ASME 2012 10th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/ht2012-58379.

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Steady-state external natural convection heat transfer from vertically-mounted rectangular interrupted fins is investigated numerically and experimentally. To perform an experimental study, a custom-designed testbed was developed to verify the analytical and numerical results. FLUENT software was used in order to develop a 2-D numerical model for investigation of interruption effects. After regenerating, and validating the existing analytical results for fin spacing, a systematic numerical and experimental study was conducted on effect of fin interruption. Results show that adding interruption

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3

Tamayol, A., F. McGregor, E. Demian, et al. "Assessment of Thermal Performance of Electronic Enclosures With Rectangular Fins: A Passive Thermal Solution." In ASME 2011 Pacific Rim Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Systems. ASMEDC, 2011. http://dx.doi.org/10.1115/ipack2011-52174.

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Passive heat transfer from enclosures with rectangular fins is studied both experimentally and theoretically. Several sample enclosures with various lengths are prepared and tested. To calibrate the thermal measurements and the analyses, enclosures without fins (“bare” enclosures) are also prepared and tested. Surface temperature distribution is determined for various enclosure lengths and heat generation rates. Existing relationships for natural convection and radiation heat transfer are used to calculate the heat transfer rate of the tested samples. The theoretical results successfully predi

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4

Chikurde, R. C., B. S. Kothavale, and N. K. Sane. "Natural Convection Heat Transfer With Horizontal Rectangular Fin Array Using Straight Knurling Patterns on Fins: An Experimental Study." In ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-86449.

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Natural Convection heat transfer from horizontal rectangular fin array with various knurling patterns is studied experimentally to find the effect of varying surface roughness on the heat transfer rate. The experimental parametric study is performed to investigate the effect of knurl produced surface roughness of fin on heat transfer rate. The parameters like knurling height from base, knurling depth and fin spacing might affect the flow characteristics and hence it is investigated to find the effect on heat transfer coefficient. The knurling is usually accomplished using one or more very hard

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