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首页> 外文期刊>Journal of the Brazilian Society of Mechanical Sciences and Engineering >Effectiveness - NTU data and analysis for air conditioning and refrigeration air coils
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Effectiveness - NTU data and analysis for air conditioning and refrigeration air coils

机译：有效性-空调和制冷空气盘管的NTU数据和分析

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摘要

A simulation program based on a control volume analysis has been used in the evaluation of the (ε, NTU) relationship for coils of complex geometry and flow arrangement. The simulation program has been evaluated through simple geometry and flow arrangement coils. The program results compare very well with correlations for simple cross flow coils, and a number of rows up to four. It has also been determined that closed form correlations developed for coils of an infinite number of tube rows are inadequate for those with number of rows in the range between 5 and 10. In addition, it has been found that closed form (ε, NTU) correlations for cross flow coils with the same tube arrangement and number of rows might lead to inaccuracies higher than 10% in the evaluation of the effectiveness of coils of complex flow arrangement.
机译：基于控制量分析的仿真程序已用于评估复杂几何形状和流量布置的线圈的（ε，NTU）关系。通过简单的几何形状和流量布置线圈对仿真程序进行了评估。该程序的结果与简单的错流盘管的相关性非常好，行数最多为四。还已经确定，为无限数量的管排的线圈开发的闭式相关性对于排数在5到10之间的线圈是不充分的。此外，已经发现闭式（ε，NTU）具有相同管布置和排数的错流盘管的相关性可能导致在复杂流布置的盘管的有效性评估中，误差超过10％。

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