Enhancement of natural convection heat flow from the heated source through vertical tube with internal rings
Mohammad Sohail Pervez, Ramesh Chandra Nayak, Suryavanshi Bhagyeshkumar Vijaybhai, Manmatha K. Roul, N.H. Khan, Mahesh Vasantrao Kulkarni
Abstract. Heat transfer with density difference of fluid without any external source is called natural convection heat flow. The density difference occurs due to temperature variation. When fluid temperature rises due to surrounding condition, then fluid starts to rise up and nearer fluid movement occurs to fill that gap. Natural convection method is commonly used in electronic equipment, where maximum numbers of equipment are placed on a single small board, if proper heat transfer will not happen from that board, then failure of the total system will occur, forced convection method is not practically possible for such small board, so natural convection method is suitable for these cases. In this work heat transfer properties inside a vertical tube and the method to enhance heat transfer by natural convection through the tube has been presented, the vertical tube is 50mm diameter and its length is 550 mm. Ratio of length to diameter of the test section is 11. Uniform heat flux is retained inside the tube. The rings provided inside the test section having dimension 6 mm thick and square cross section. Rings are placed with equal spacing inside the tube. The basic aim of this work is to represent the heat transfer properties from the heated object through the vertical tube by natural convection heat transfer with and without internal rings inside. Fluid flow properties along the vertical tube and exit from tube have been presented in this work.
Keywords
Density, Vertical Tube, Natural Convection, Heat Flow, Internal Rings
Published online 3/1/2025, 8 pages
Copyright © 2025 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Mohammad Sohail Pervez, Ramesh Chandra Nayak, Suryavanshi Bhagyeshkumar Vijaybhai, Manmatha K. Roul, N.H. Khan, Mahesh Vasantrao Kulkarni, Enhancement of natural convection heat flow from the heated source through vertical tube with internal rings, Materials Research Proceedings, Vol. 49, pp 21-28, 2025
DOI: https://doi.org/10.21741/9781644903438-3
The article was published as article 3 of the book Mechanical Engineering for Sustainable Development
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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