Cascaded cross flow DBD-adsorbent technique for NO<sub>X</sub> abatement in diesel engine exhaust

Mohapatro, Sankarsan; Rajanikanth, BS

doi:10.1109/tdei.2010.5595556

Cited by 27 publications

(12 citation statements)

References 20 publications

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“…For the same removal efficiency, it is better to have a lower specific energy density, regarding energy consumption [19]. Some researchers have also employed DBD with catalyst or adsorbent in order to increase NOx removal efficiency [20][21][22][23][24]. Although encouraging results have been obtained, more improvement is still required for the practical applications.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on the optimization of dielectric barrier discharge reactor for NO<inf>x</inf>treatment

Talebizadeh

Rahimzadeh

Anaghizi

et al. 2016

IEEE Trans. Dielect. Electr. Insul.

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In this paper, a comprehensive study of a DBD reactor is conducted to investigate the optimum operating conditions of the reactor for NOx treatment. For each parameter, the objective is to find the maximum NOx removal efficiency with the minimum consumed power. Different effective parameters of the reactor i.e. electrode length and diameter, electrode and dielectric materials as well as parameters of power generator, i.e. voltage and frequency, are investigated. The results show that for this configuration, the electrode with 20 cm length and 10 mm diameter has the best performance. Aluminum as the inside electrode material and quartz as the dielectric material are selected. Furthermore, the optimum value for the pulse frequency is 16.6 kHz. For the mentioned optimum conditions, the NOx removal efficiency achieved is equal to almost 82% at the input power of 486 W. Furthermore, the highest achieved NOx removal is almost 92% at the input power of 864 W. The results of this paper can be used to reduce the energy consumption of NTP systems to acceptable levels.

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Section: Introductionmentioning

confidence: 99%

Experimental study on the optimization of dielectric barrier discharge reactor for NO<inf>x</inf>treatment

Talebizadeh

Rahimzadeh

Anaghizi

et al. 2016

IEEE Trans. Dielect. Electr. Insul.

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“…In the filtered exhaust plasma treatment, the O radicals effectively help oxidation of NO to NO 2 , thus leading to a high NO removal efficiency [17]. Furthermore, the O radical produced in plasma reacts with the HCs present in the real diesel exhaust forms aldehydes, peroxy radicals, and hydroxyl radicals [12].…”

Section: A Study Of No X Removal Using Axial-flow Dbd Reactormentioning

confidence: 99%

“…11. For the calculation of efficiency in grams per kilowatthour, [(16)- (22)] has been used [17]. It is observed from the figure that with low exhaust flow rate of 2 L/min, only about 6.5 g of NO X can be removed.…”

Section: A Study Of No X Removal Using Axial-flow Dbd Reactormentioning

confidence: 99%

“…5, we may say that the cross-flow reactor consumes a little less power compared with the axialflow reactor. Here, exhaust was allowed to pass through the reactor in such a way that the exhaust flow would be orthogonal to the electrode [17]. The main reason behind this design is that, here, the length of the reactor will not be constrained as in axial-type reactor.…”

Section: B Study Of No X Removal Using Cross-flow Dbd Reactormentioning

confidence: 99%

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Studies on <inline-formula> <tex-math notation="TeX">$\hbox{NO}_{\rm X} $</tex-math></inline-formula> Removal From Diesel Engine Exhaust Using Duct-Type DBD Reactor

Mohapatro

Rajanikanth

2015

IEEE Trans. on Ind. Applicat.

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With ever more stringent NO X emissions, it is necessary to examine removal of nitrogen oxide from diesel engine exhaust. This paper describes the study of NO X reduction from 5.9-kW stationary diesel engine exhaust under nanosecond pulse energization. Two plasma reactors characterized by dielectric barrier discharge has been designed, built, and evaluated. One of the reactor designs include nine numbers of electrodes kept in parallel, and the exhaust was allowed to pass axially, whereas the second reactor consists of nine parallel electrodes and the exhaust was allowed to pass radially. The reactors were individually tested for the treatment of nitrogen oxides for gas flow rate of 2, 5, and 10 L/min. Both the reactors have been individually tested, and results show an appreciable removal of NO X with equal discharge volume. From the results, it was found that both the reactors were an efficient NO X removal. With consumption of only 36 J/L, the reactors had shown a considerable 45% DeNO X efficiency.Index Terms-Axial flow, cross flow, electric discharge, filtered exhaust, NO X removal, nonthermal plasma (NTP). 0093-9994

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“…There are several studies in the literature that examined DBD in order to remove NO x from the exhaust gases. Some researchers employed DBD alone [2], [18]- [24], and some used DBD with catalyst or adsorbent in order to increase NO x removal efficiency [2], [25]- [30].…”

Section: Introductionmentioning

confidence: 99%

The Configuration Effects of Electrode on the Performance of Dielectric Barrier Discharge Reactor for NO<sub><italic>x</italic></sub> Removal

Anaghizi

Talebizadeh

Rahimzadeh

et al. 2015

IEEE Trans. Plasma Sci.

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In this paper, a dielectric barrier discharge cylindrical reactor has been analyzed in order to increase the efficiency of nitrogen oxide (NO x ) removal from the simulated gas under the room temperature. The effects of electrode shape as well as electrode diameter and electrode length are investigated in the nonthermal plasma reactor. Two different electrode configurations (rod and screw thread electrodes) are examined. The experimental result shows that for the rod electrode, NO x removal efficiency is enhanced by increasing the electrode diameter. However, the screw thread electrode is more effective in decreasing NO x concentration. Finally, the results showed that the average input power requirement for NO x removal can be reduced almost 14% using a 1-mm screw thread electrode instead of a rod electrode.Index Terms-Dielectric barrier discharge (DBD) reactor, electrode configuration, NO x removal, nonthermal plasma (NTP), rod electrode, screw thread electrode.

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Cascaded cross flow DBD-adsorbent technique for NO_X abatement in diesel engine exhaust

Cited by 27 publications

References 20 publications

Experimental study on the optimization of dielectric barrier discharge reactor for NO<inf>x</inf>treatment

Experimental study on the optimization of dielectric barrier discharge reactor for NO<inf>x</inf>treatment

Studies on <inline-formula> <tex-math notation="TeX">$\hbox{NO}_{\rm X} $</tex-math></inline-formula> Removal From Diesel Engine Exhaust Using Duct-Type DBD Reactor

The Configuration Effects of Electrode on the Performance of Dielectric Barrier Discharge Reactor for NO<sub><italic>x</italic></sub> Removal

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Cascaded cross flow DBD-adsorbent technique for NOX abatement in diesel engine exhaust

Cited by 27 publications

References 20 publications

Experimental study on the optimization of dielectric barrier discharge reactor for NO<inf>x</inf>treatment

Experimental study on the optimization of dielectric barrier discharge reactor for NO<inf>x</inf>treatment

Studies on <inline-formula> <tex-math notation="TeX">$\hbox{NO}_{\rm X} $</tex-math></inline-formula> Removal From Diesel Engine Exhaust Using Duct-Type DBD Reactor

The Configuration Effects of Electrode on the Performance of Dielectric Barrier Discharge Reactor for NO<sub><italic>x</italic></sub> Removal

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Cascaded cross flow DBD-adsorbent technique for NO_X abatement in diesel engine exhaust