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Migrating Temperature “Thermo-Chromatographic” Pulses (TCP) Initiated by Radio-Frequency (RF) Heating
Journal of Microwave Power and Electromagnetic Energy ( IF 1.5 ) Pub Date : 2012-01-01 , DOI: 10.1080/08327823.2012.11689840
Markus Kraus 1 , Frank-Dieter Kopinke 1 , Ulf Roland 1
Affiliation  

Abstract In the present study, the astonishing influence of water dosage on a purged dry packed bed of NaY zeolite in the presence of an electric field with a frequency of 13.56 MHz was investigated. The injection of a small amount of water to the inlet of the bed led to pronounced selective heating of the inlet zone by more than 150 K. Thus, water represented a very effective coupling medium for dielectric heating. The selectively heated zone then slowly moved through the whole packed bed and a water pulse finally left the zeolite. This effect correlated with a coupled water and heat flux was called thermo-chromatographic pulse (TCP) emphasizing its analogy to chromatography. The phenomenon could not be performed by using conventional (convective) or microwave heating. It was demonstrated under various conditions and explained by a new model based on own experimental results as well as data from literature. The model will be the objective of a forthcoming publication.

中文翻译:

由射频 (RF) 加热引发的迁移温度“热色谱”脉冲 (TCP)

摘要 在本研究中,研究了在频率为 13.56 MHz 的电场存在下,水用量对 NaY 沸石吹扫干燥填充床的惊人影响。将少量水注入床的入口,导致入口区的选择性加热超过 150 K。因此,水代表了一种非常有效的介电加热耦合介质。然后选择性加热区缓慢移动通过整个填充床,水脉冲最终离开沸石。这种与耦合的水和热通量相关的效应称为热色谱脉冲 (TCP),强调其与色谱的类比。使用常规(对流)或微波加热无法实现该现象。它在各种条件下得到证明,并通过基于自己的实验结果和文献数据的新模型进行解释。该模型将成为即将出版的出版物的目标。
更新日期:2012-01-01
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