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首页> 外文期刊>Heat Transfer Research >APPLICATION OF ENTROPY GENERATION MINIMIZATION FOR OPTIMIZING THE GEOMETRY OF A DOUBLE-TUBE HEAT EXCHANGER
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APPLICATION OF ENTROPY GENERATION MINIMIZATION FOR OPTIMIZING THE GEOMETRY OF A DOUBLE-TUBE HEAT EXCHANGER

机译：熵产生最小化优化双管热交换器几何形状的应用

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摘要

The paper presents an analysis of entropy generation for a double-tube heat exchanger with water as heat transferring fluids. Four heat exchanger configurations were considered: with the heating fluid in the inner and outer tubes, and with parallel and counter flows. The aim of the analysis was to determine the tube inner [inner tube] diameter for which entropy generation is minimum. The entropy generation resulting from heat flow and from resistance to flow (pressure losses) of heat transferring fluids were taken into account. The minimum of entropy generation as a function of the inner tube diameter was found for two cases: for the counter and parallel flows when the cold fluid flows through the inner tube and the hot fluid passes through the space between the tubes. For two other cases of the counter and parallel flows when the hot fluid flows through the inner tube and the cold fluid passes through the space between the tubes, entropy generation is approximately linearly decreasing with the increase in the inner tube diameter, and there is no entropy generation extremum (minimum) in the range of dimensions analyzed in the study.
机译：本文介绍了用水作为热传递流体的双管热交换器的熵生成分析。考虑了四种热交换器配置：在内和外管中的加热流体，并与平行和逆流。分析的目的是确定熵生成最小的管内部[内管]直径。考虑了由热流和流动流动（压力损失）产生的熵产生。发现作为内管直径的函数的熵产生的最小值：当冷流体流过内管时，对于计数器和平行流动，并且热流体通过管之间的空间。对于当热流体流过内管并且冷流体通过管之间的空间时，对于另一个反击和平行流动的情况，随着内管直径的增加，熵产生大致线性地减小，并且没有研究中分析的尺寸范围内的熵产生极值（最小）。

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