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Computational Fluid Dynamics data for improving freeze-dryers design

机译:计算流体动力学数据可改善冷冻干燥机的设计

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摘要

Computational Fluid Dynamics (CFD) can be used to simulate different parts of an industrial freeze-drying equipment and to properly design them; in particular data concerning the freeze-dryer chamber and the duct connecting the chamber with the condenser, with the valves and vanes eventually present are given here, and can be used to understand the behavior of the apparatus allowing an improved design. Pilot and large scale freeze-drying chambers have been considered; data of a detailed simulation of a complete pilot scale apparatus, including duct and condenser, are included. Data on conductance of an empty duct with different L/D ratio, on disk valves with different geometry, and on mushroom valve are presented. Velocity, pressure, temperature and composition fields are reported on selected planes for chambers and valves. Results of dynamic simulations are also presented, to evaluate possible performance of monitoring devices in the chamber. Some further data, with detailed interpretation and discussion of the presented data can be found in the related research article by Barresi et al. and Marchisio et al. .
机译:计算流体动力学(CFD)可用于模拟工业冷冻干燥设备的不同部分并进行适当的设计;特别是在这里给出了有关冷冻干燥器腔室以及将腔室与冷凝器连接的管道的数据,并最终给出了阀门和叶片,这些数据可用于了解设备的性能,从而改进设计。已经考虑了中试和大型冷冻干燥箱;包括管道和冷凝器在内的完整中试规模设备的详细模拟数据。给出了有关具有不同L / D比的空导管,具有不同几何形状的碟形阀和蘑菇形阀的电导数据。在选定的腔室和阀门平面上报告速度,压力,温度和成分场。还提供了动态模拟的结果,以评估室内监控设备的可能性能。可以在Barresi等人的相关研究文章中找到一些进一步的数据,并对给出的数据进行详细的解释和讨论。和Marchisio等。 。

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