On Drickamer's Modification of the Theory of the Thermal Diffusion Column

1953 ◽  
Vol 21 (2) ◽  
pp. 246-249 ◽  
Author(s):  
Kozo Hirota ◽  
Yasushi Kobayashi
Keyword(s):  
Thermal Diffusion ◽  
Diffusion Column

Development of a CFD-based simulation model and optimization of thermal diffusion column: application on noble gas separation

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Hamed Eghbalahmadi ◽  
Parissa Khadiv-Parsi ◽  
Seyed Mohammad Ali Mousavian ◽  
Mohammad Hosein Eghbal Ahmadi
Keyword(s):  
Experimental Data ◽  
Thermal Diffusion ◽  
Noble Gas ◽  
Target Function ◽  
Operating Conditions ◽  
Optimum Operating ◽  
Hot Wire ◽  
Wire Temperature ◽  
Diffusion Column ◽  
Performance Effects

Abstract In this study, numerical simulations were carried out to investigate the separation of the helium-argon gas mixture by thermal diffusion column. This research determined the significant parameters and their effects on the process performance. Effects of feed flow rate, cut ratio, and hot wire temperature in a 950 mm height column with an inner tube of 9.5 mm radius were examined through the simulation of the thermal diffusion column. For minimizing the number of simulations and obtaining the optimum operating conditions, response surface methodology (RSM) was used. Analysis of separative work unit (SWU) values as a target function for helium-argon separation clearly showed that the maximum amount of SWU in thermal diffusion column was achieved, when hot wire temperature increased as large as technically possible, and the feed rate and cut ratio were equal to 55 Standard Cubic Centimeters per Minute (SCCM) and 0.44, respectively. Finally, the SWU value in optimum conditions was compared with the experimental data. Results illustrated that the experimental data were in good agreement with simulation data with an accuracy of about 90%.

scholarly journals Effects of Scale-up Factor on Characteristics of Methane Dehydrogenative Coupling Using a Thermal Diffusion Column Reactor.

2002 ◽  
Vol 45 (1) ◽  
pp. 10-14
Author(s):  
Ken-ichi SUZUKI ◽  
Tatsuya TAKAMATSU ◽  
Yoshiaki SEKIGUCHI ◽  
Motoki KOBAYASHI ◽  
Kaoru ONOE ◽  
...  
Keyword(s):  
Thermal Diffusion ◽  
Scale Up ◽  
Column Reactor ◽  
Dehydrogenative Coupling ◽  
Diffusion Column

A Tritum Recovery System from Waste Water of Fusion Reactor Using Cece and Cryogenic-Wall Thermal Diffusion Column

1996 ◽  
Vol 30 (3P2A) ◽  
pp. 864-868 ◽  
Author(s):  
T. Arita ◽  
T. Yamanishi ◽  
Y. Iwai ◽  
K. Okuno ◽  
N. Kobayashi ◽  
...  
Keyword(s):  
Waste Water ◽  
Thermal Diffusion ◽  
Fusion Reactor ◽  
Recovery System ◽  
Diffusion Column

scholarly journals Separation of Gas Mixture by Packed Thermal Diffusion Column

1975 ◽  
Vol 1 (1) ◽  
pp. 20-26
Author(s):  
Takao Kokugan ◽  
Masaru Shimizu
Keyword(s):  
Thermal Diffusion ◽  
Gas Mixture ◽  
Diffusion Column

Predictable Low Enrichment of Methane Isotopes by Clusius-Dickel Thermal-Diffusion Columns for Use in Radiocarbon Dating Technique

1971 ◽  
Vol 26 (8) ◽  
pp. 1365-1370 ◽  
Author(s):  
H. Erlenkeuser
Keyword(s):  
Thermal Diffusion ◽  
Radiocarbon Dating ◽  
Total Sample ◽  
High Reproducibility ◽  
Operation Conditions ◽  
Sample Enrichment ◽  
Diffusion Column ◽  
Sample Amount ◽  
Dating Method ◽  
Optimal Values

By means of the Clusius-Dickel thermal-diffusion column the range of the radiocarbon dating method may be extended by 20 000 years. It is shown in this work that the total sample amount required is reasonably low, if column dimensions are suitably chosen. The enrichment run time and the length of the thermal-diffusion column will allow sample enrichment in routine operation. Optimal values of column dimensions and operation conditions are calculated.With an all metal thermal-diffusion column that has been carefully constructed, a high reproducibility is found. The stationary as well as the non-stationary state operation are in agreement with column theory within 1%, concerning the enrichment both of C13H4 and C14H4 in methane. The theory has been evaluated by numerical methods

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