REGULARITIES OF THE AVERAGE HEAT EXCHANGE FOR PIPES WITH ROUGH WALLS AND ROUGH FLAT CHANNELS UNDER ONE-SIDED THERMAL LOADING

In recent years, the numbers of patents have been devoted to the development of rough pipes. The technique theoretical settlement determine of factor of hydraulic resistance for round pipes with rough walls is developed on the basis of a principle of a superposition of complete viscosity in turbulent a layer mainly distinguished from the existing theories. The received results of account for the extended range of determining parameters much distinguished from appropriate given for round pipes with turbulizers, specify a level и intensification of heat exchange.

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Intellectual modeling of surface heat-exchange enhancer based on artificial neural networks

E3S Web of Conferences ◽

10.1051/e3sconf/201912403007 ◽

2019 ◽

Vol 124 ◽

pp. 03007

Author(s):

K. K. Gilfanov ◽

R. A. Shakirov

Keyword(s):

Neural Networks ◽

Artificial Neural Networks ◽

Heat Exchange ◽

Network Modeling ◽

Surface Heat ◽

Neural Network Modeling ◽

Average Heat ◽

Surface Heat Exchange ◽

Different Shapes ◽

Artificial Neural

The results of neural network modeling of average heat transfer in the channels of exchangers with surface enhancer of different shapes are presented. Artificial neural networks are trained using experimental data, which covers more than ten sources. The possibility and prospects of building artificial neural networks for modeling the characteristics of heat exchange surfaces are shown.

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Low-Reynolds Simulation of Heat Transfer in Turbulent Flow in a Flat Channel with Symmetrically Arranged Turbulators on Both Sides of the Channel

Journal of Chemistry Education Research and Practice ◽

10.33140/jcerp.04.01.04 ◽

2020 ◽

Vol 4 (1) ◽

Keyword(s):

Heat Transfer ◽

Heat Exchange ◽

Cross Section ◽

Heat Exchangers ◽

Thermal Loading ◽

Flat Channel ◽

Heat Transfer Intensification ◽

Heat Flows ◽

Heat Exchange Surface ◽

Exchange Surface

Widespread use in modern heat exchangers and apparatus received heat exchangers, where the channels have a cross-section, different from the round tubes, in a particular case, flat channels, where heat is not produced by means of a full surface to be washed. The thermal loading of a flat channel can be asymmetric, since the heat flows on different surfaces can be unequal, namely: flat channels with one-way heating or with two-way heating with unequal heat flows. In order to ensure the compactness of heat exchange devices and heat exchange apparatuses, heat transfer intensification is used, which in flat channels is achievable by two main methods: the development of the heat exchange surface and turbulence of the flow in the channels.

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