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Parametric study of natural convection showing effects of geometry, number and orientation of fins on a finned tube system: A numerical approach

Year 2022, Volume: 8 Issue: 2, 268 - 285, 11.03.2022
https://doi.org/10.18186/thermal.1086242

Abstract

The present study provides a thorough numerical analysis of natural convection heat transfer from a horizontal cylinder with external longitudinal fins. The Three-dimensional(3D) forms of Continuity, Navier-stokes, and the energy equations have been solved to understand the flow field and temperature distribution using the Ansys Fluent software. The purpose of the study is to investigate the effects of fin length Lf, fin thickness (t), number of fins (N) and material of fin (Aluminum & Steel) on the parameters namely, the heat transfer rate from the inner isothermal wall and effectiveness (Q*)of the system for a constant Rayleigh number in the laminar range (Ra ≤ 106). Additionally, the effect of two different orientations (A&B) of fins has been discussed. Orientation-A consists of fins starting from horizontal plane placed at equal angular spacing subsequently, whereas the fins in orientation-B originate from the vertical plane followed with equal angular spacing. Non-dimensional fin length (L*) is being varied from 0.222 to 2, non-dimensional fin thickness (t*) as 0.022 ~0.044 and the number of fins (N) between 6~24. It is observed that for a fixed number of fins there exists an optimum fin length and for a fixed fin length there exists an optimum fin thickness & an optimum number of fins. For a fixed number of fins there exist an optimum fin length and maximum effectiveness, the maximum possible effectiveness for the taken fin-tube system is 4.34 for 12 fins. The maximum effectiveness reported in the current study was 1.86 for L*=0.444, t*=0.022 and N=12. Furthermore, the optimum length for N=12 came out to be L*=1.8.

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  • The article references can be accessed from the .pdf file.
Year 2022, Volume: 8 Issue: 2, 268 - 285, 11.03.2022
https://doi.org/10.18186/thermal.1086242

Abstract

References

  • The article references can be accessed from the .pdf file.
There are 1 citations in total.

Details

Primary Language English
Subjects Thermodynamics and Statistical Physics
Journal Section Articles
Authors

Gaurav Krıshnayatra This is me 0000-0003-4217-5303

Sulekh Tokas This is me 0000-0002-7117-0432

Rajesh Kumar This is me 0000-0002-9839-6001

Mohammad Zunaıd This is me 0000-0001-8156-8615

Publication Date March 11, 2022
Submission Date March 14, 2020
Published in Issue Year 2022 Volume: 8 Issue: 2

Cite

APA Krıshnayatra, G., Tokas, S., Kumar, R., Zunaıd, M. (2022). Parametric study of natural convection showing effects of geometry, number and orientation of fins on a finned tube system: A numerical approach. Journal of Thermal Engineering, 8(2), 268-285. https://doi.org/10.18186/thermal.1086242
AMA Krıshnayatra G, Tokas S, Kumar R, Zunaıd M. Parametric study of natural convection showing effects of geometry, number and orientation of fins on a finned tube system: A numerical approach. Journal of Thermal Engineering. March 2022;8(2):268-285. doi:10.18186/thermal.1086242
Chicago Krıshnayatra, Gaurav, Sulekh Tokas, Rajesh Kumar, and Mohammad Zunaıd. “Parametric Study of Natural Convection Showing Effects of Geometry, Number and Orientation of Fins on a Finned Tube System: A Numerical Approach”. Journal of Thermal Engineering 8, no. 2 (March 2022): 268-85. https://doi.org/10.18186/thermal.1086242.
EndNote Krıshnayatra G, Tokas S, Kumar R, Zunaıd M (March 1, 2022) Parametric study of natural convection showing effects of geometry, number and orientation of fins on a finned tube system: A numerical approach. Journal of Thermal Engineering 8 2 268–285.
IEEE G. Krıshnayatra, S. Tokas, R. Kumar, and M. Zunaıd, “Parametric study of natural convection showing effects of geometry, number and orientation of fins on a finned tube system: A numerical approach”, Journal of Thermal Engineering, vol. 8, no. 2, pp. 268–285, 2022, doi: 10.18186/thermal.1086242.
ISNAD Krıshnayatra, Gaurav et al. “Parametric Study of Natural Convection Showing Effects of Geometry, Number and Orientation of Fins on a Finned Tube System: A Numerical Approach”. Journal of Thermal Engineering 8/2 (March 2022), 268-285. https://doi.org/10.18186/thermal.1086242.
JAMA Krıshnayatra G, Tokas S, Kumar R, Zunaıd M. Parametric study of natural convection showing effects of geometry, number and orientation of fins on a finned tube system: A numerical approach. Journal of Thermal Engineering. 2022;8:268–285.
MLA Krıshnayatra, Gaurav et al. “Parametric Study of Natural Convection Showing Effects of Geometry, Number and Orientation of Fins on a Finned Tube System: A Numerical Approach”. Journal of Thermal Engineering, vol. 8, no. 2, 2022, pp. 268-85, doi:10.18186/thermal.1086242.
Vancouver Krıshnayatra G, Tokas S, Kumar R, Zunaıd M. Parametric study of natural convection showing effects of geometry, number and orientation of fins on a finned tube system: A numerical approach. Journal of Thermal Engineering. 2022;8(2):268-85.

IMPORTANT NOTE: JOURNAL SUBMISSION LINK http://eds.yildiz.edu.tr/journal-of-thermal-engineering