增强管式热交换器管槽中的热传递

IF 0.7 4区工程技术 Q4 ENGINEERING, CHEMICAL

Theoretical Foundations of Chemical Engineering Pub Date : 2024-01-17 DOI:10.1134/S0040579523050433

A. A. Konoplev, B. L. Rytov, Al. Al. Berlin, S. V. Romanov

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引用次数: 0

摘要

热能工程实验中使用的实验室水-水管-管热交换器具有相同的设计参数，内管既有光滑的，也有异形的。管子的异型是通过内通道流动截面的混频器-扩散器收缩形成的，这些收缩是通过管壁变形形成的，并沿长度方向以一定的步长放置，所有异型管的步长恒定且相等。所得结果表明，管道中的传热增强与雷诺数和普朗特数有关，后者比前者更重要，至少在热载体是水的情况下是如此。

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

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.

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来源期刊

Theoretical Foundations of Chemical Engineering 工程技术-工程：化工

CiteScore

1.20

自引率

25.00%

发文量

审稿时长

24 months

期刊介绍： Theoretical Foundations of Chemical Engineering is a comprehensive journal covering all aspects of theoretical and applied research in chemical engineering, including transport phenomena; surface phenomena; processes of mixture separation; theory and methods of chemical reactor design; combined processes and multifunctional reactors; hydromechanic, thermal, diffusion, and chemical processes and apparatus, membrane processes and reactors; biotechnology; dispersed systems; nanotechnologies; process intensification; information modeling and analysis; energy- and resource-saving processes; environmentally clean processes and technologies.