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The Merkel equation revisited: A novel method to compute the packed height of a cooling tower

机译:重温默克尔方程:一种计算冷却塔填充高度的新方法

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摘要

In this work, a new methodology of analysis and computation is presented which simplifies calculation of the packed height in a counter current cooling tower, especially for design and cost optimization studies. An algorithm is presented with an implementation in MATLAB to compute the thermodynamic minimum air flow rate for the desired cooling. Combining the Merkel equation and a standard empirical mass transfer correlation, the packed height is shown to be independent of the water flow rate and tower diameter, and dependent only on the excess air flow. The relationship is unique for a given cooling range of water and inlet air wet bulb temperature. A simple power law regression is used to approximate this relationship and results are presented for Vertical Corrugated Packing.
机译:在这项工作中,提出了一种新的分析和计算方法,该方法简化了逆流冷却塔中填料高度的计算,尤其是用于设计和成本优化研究的情况。提出了一种在MATLAB中实现的算法,以计算所需冷却的热力学最小空气流速。结合默克尔方程式和标准的经验传质相关性,表明堆积高度与水的流速和塔的直径无关,并且仅取决于过量的空气流量。对于给定的水冷却范围和进气湿球温度,这种关系是唯一的。使用简单的幂律回归来近似这种关系,并给出了垂直瓦楞包装的结果。

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