Enhancement of Heat Transfer in a Tube Channel of a Tubular Heat Exchanger

A. A. Konoplev; Коноплев А. А.; B. L. Rytov; Рытов Б. Л.; Al. Al. Berlin; Берлин Ал. Ал.; S. V. Romanov; Романов С. В.

doi:10.31857/S004035712305010X

Enhancement of Heat Transfer in a Tube Channel of a Tubular Heat Exchanger

Authors: Konoplev A.A.¹, Rytov B.L.¹, Berlin A.A.¹, Romanov S.V.²
Affiliations:
1. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences
2. OOO NPP Energosistemy
Issue: Vol 57, No 5 (2023)
Pages: 589-595
Section: Articles
Published: 01.09.2023
URL: https://rjmseer.com/0040-3571/article/view/652859
DOI: https://doi.org/10.31857/S004035712305010X
EDN: https://elibrary.ru/MEKLIZ
ID: 652859

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Abstract

Thermal engineering experiments were carried out with laboratory water-to-water tube-in-tube heat exchangers of the same design parameters with smooth and profiled inner tubes. The tubes were profiled by confuser–diffuser constrictions of the flow section of the inner channel, which were formed by the deformation of their walls and placed along the length at a step that was constant and equal for all profiled tubes. The obtained results showed a dependence of the heat transfer enhancement in the tube channel on the Reynolds and Prandtl numbers, with the dependence on the latter being much stronger than that on the former, at least in cases where the heat carrier is water.

Keywords

thermal engineering experiment, tubular heat exchanger, tube channel, convective heat transfer, heat transfer, enhancement of heat transfer

References

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