Analysis of Charging Kinetics of Oxide Ceramics under Short Electron Beam Irradiation: Numerical Simulation of Secondary Electron Emission

Author(s):  
A. Aoufi ◽  
K. Zarbout ◽  
G. Damamme ◽  
G. Moya
Nukleonika ◽  
2017 ◽  
Vol 62 (3) ◽  
pp. 235-240 ◽  
Author(s):  
Henrietta Nichipor ◽  
Yongxia Sun ◽  
Andrzej G. Chmielewski

Abstract Theoretical study of NOx removal from humid air by a hybrid system (catalyst combined with electron beam) was carried out. The purpose of this work is to study the possibility to decrease energy consumption for NOx removal. The kinetics of radiation catalytic oxidation of NO on the catalyst TiO2 surface under electron beam irradiation was elaborated. Program Scilab 5.3.0 was used for numerical simulations. Influential parameters such as inlet NO concentration, dose, gas fl ow rate, water concentration and catalyst contents that can affect NOx removal efficiency were studied. The results of calculation show that the removal efficiency of NOx might be increased by 8-16% with the presence of a catalyst in the gas irradiated field.


2020 ◽  
pp. 150-153
Author(s):  
E.V. Romashchenko ◽  
I.О. Girka ◽  
A.A. Bizyukov ◽  
A.D. Chibisov

The effect of different electron emission processes on macropraticle (MP) charging in a plasma at the presence of electron beam is investigated. A complete model of the MP charging in the beam-plasma systems, which includes possible electron emission processes from the MP surface, such as secondary electron emission, the thermionic electron emission, the field electron emission and thermal-field electron emission, is presented.


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