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首页> 外文会议>International Conference on Compact Heat Exchangers and Enhancement Technology for the Process Industries; 20030929-20031003; Crete Island; GR >HEAT TRANSFER IN PACKED BEDS FROM PRESSURE DROP - AN APPLICATION OF THE LEVEQUE ANALOGY -
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HEAT TRANSFER IN PACKED BEDS FROM PRESSURE DROP - AN APPLICATION OF THE LEVEQUE ANALOGY -

机译：压降引起的袋装床中的传热-水平模拟的应用-

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摘要

A new type of analogy between frictional pressure drop and heat transfer has been discovered, that may be used in chevron-type plate heat exchangers, in tube bundles, in crossed-rod matrices, and in many other periodic arrangements of solids in a fluid flow. It is based on the Generalized Leveque Equation (GLE). The new method can also be used in external flow situations, not only for internal flow. This was demonstrated recently for a single sphere as well as for a single cylinder in cross flow. A new detailed comparison with experimental data from more than 40 sources is shown to agree very well with the GLE prediction, if Erguns equation is used to calculate the total pressure drop. Data for packed beds of solid particles of other shapes, such as cubes, cylinders, hollow cylinders (rings), and saddles have also been compared. The successful application of the GLE in a variety of different compact heat exchanger geometries shows that this new type of analogy has a broad range of applications and may lead to better design methods for compact heat exchangers.
机译：已经发现了摩擦压降和热传递之间的新型比喻，可用于人字形板式换热器，管束，交叉杆矩阵以及流体流动中固体的许多其他周期性排列。它基于广义Leveque方程（GLE）。新方法还可以用于外部流量情况，不仅用于内部流量。最近在单个球体和单个圆柱体的错流中对此进行了证明。如果使用Erguns方程来计算总压降，则对来自40多个来源的实验数据进行的新的详细比较表明与GLE预测非常吻合。还比较了其他形状的固体颗粒（例如立方体，圆柱体，空心圆柱体（环）和鞍座）的填充床数据。 GLE在各种不同的紧凑型换热器几何结构中的成功应用表明，这种新型的类比具有广泛的应用范围，并且可能会为紧凑型换热器带来更好的设计方法。

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