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首页> 外文会议>International Conference on Advanced Concepts in Mechanical Engineering >Numerical Study of Corrugation Amplitude Influence of a Wavy Fin in Overall Performance of a Compact Heat Exchanger
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Numerical Study of Corrugation Amplitude Influence of a Wavy Fin in Overall Performance of a Compact Heat Exchanger

机译：波纹翅片在紧凑型热交换器整体性能下的波纹幅度影响的数值研究

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In the past few decades heat exchangers, especially air cooled ones, have become very important equipment in different fields of industry. This led to an active research in finding ways to reduce their overall size and costs. The convection capacity of air plays an important role in reducing the size of the heat exchanger, by being the lowest one; it dictates the overall size of the heat exchanger. For this reason we have to use extended heat transfer surfaces on the air size. The geometry of such extended surfaces has a high impact on heat and pressure drop performances. The present paper focuses on a study, done at RAAL S.A. with the support of the University "Politehnica" of Timisoara, to find the influence of the corrugation amplitude, of a special kind of extended surface named wavy fin, in the overall performances of the heat exchangers, by means of the area goodness factor (j/f). Designing and building the different geometries in the study will be overkill for the company, so we have decided to conduct this study with the help of CFD simulations. In order to make the simulations work we will validate the numerical model with the help of a single experimental test, reducing the time and cost of the entire study. Afterwards these results are used to modify the fin's design to get an optimum one.
机译：在过去的几十年中，换热器，特别是空气冷却的，已经成为不同的行业领域的重要设备。这导致了积极的研究，以找到降低整体大小和成本的方法。空气的对流能力在降低热交换器的尺寸时起着重要作用，通过是最低的一个;它决定了热交换器的整体尺寸。因此，我们必须在空气尺寸上使用扩展的传热表面。这种延伸表面的几何形状对热和压降性能具有高影响力。本文侧重于一项研究，在Raal SA在Timisoara的大学“Politehnica”的支持下，找到了瓦楞振幅的影响，特殊的扩展表面命名为波浪鳍，在整体表演中借助于面积的良性因子（J / F）。该研究中的不同几何形状设计和建造了不同的几何形状，这将是公司的矫枉过正，因此我们决定在CFD模拟的帮助下进行这项研究。为了使模拟工作，我们将在单一的实验测试的帮助下验证数值模型，减少整个研究的时间和成本。之后，这些结果用于修改FIN的设计以获得最佳的设计。

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