Dielectric barrier discharge cascaded with red mud waste to enhance NOx removal from diesel engine exhaust

2012 ◽  
Vol 19 (2) ◽  
pp. 641-647 ◽  
Author(s):  
S. Mohapatro ◽  
B. S. Rajanikanth
Keyword(s):  
Diesel Engine ◽  
Dielectric Barrier Discharge ◽  
Red Mud ◽  
Barrier Discharge ◽  
Nox Removal ◽  
Engine Exhaust ◽  
Dielectric Barrier ◽  
Diesel Engine Exhaust

Numerical Optimization Research on the Dielectric Barrier Discharge for NOx Removal

2011 ◽  
Vol 356-360 ◽  
pp. 1238-1243
Author(s):  
Hai Ping Xiao ◽  
Xu Du ◽  
Lei Wang
Keyword(s):  
Dielectric Barrier Discharge ◽  
Numerical Optimization ◽  
Barrier Discharge ◽  
Breakdown Strength ◽  
Optimization Method ◽  
Nox Removal ◽  
Discharge Time ◽  
Dielectric Barrier ◽  
Dbd Reactor ◽  
Discharge Gap

Numerical optimization research was made for the dielectric barrier discharge (DBD) reactor for NOx removal in order to improve the efficiency of the DBD reactor. In this paper, the optimization method proposed by our studying team was adopted to carry out the numerical optimization research on the discharge gap of the reactor. As a result, the breakdown strength of reactor was 44.8kV/cm at a 2mm discharge gap and the discharge started at 25μs. When the discharge gap increased to 8mm, the breakdown strength was 34.1kV/cm and the discharge time was 33μs. The removal rates under the two conditions varied little due to the similar electron mean energy, then experiment was conducted to validate the accuracy of the simulation. When the discharge gap increased, the gas handing capacity of the reactor got higher.Therefore, proper discharge gap has important influence on removal efficiency of NO during DBD.

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