Improvement of NO/sub X/ removal efficiency using short-width pulsed power

Namihira, T.; Tsukamoto, S.; Wang, Douyan; Katsuki, S.; Hackam, R.; Akiyama, H.; Uchida, Y.; Koike, Masami

doi:10.1109/27.848102

Cited by 171 publications

(102 citation statements)

References 27 publications

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“…During the experiment, the applied voltage and discharge current into the reactor are monitored by oscilloscope via voltage and current probes to calculate the consumption energy. Figure 6 shows the dependence of NO concentration on the pulse repetition rate for different pulse durations in an experiment with a three-staged Blumlein line pulsed power generator having a 300 Ω characteristic impedance, a simulated gas composition of 200 ppmNO/5%O 2 /4%H 2 O and balance of N 2 , gas temperature of 298 K, and a gas flow rate of 2.0 L/min at 273 K and 1.01 x 10 5 MPa [47]. Observe in Figure 6 that the concentration of NO decreases with increasing pulse repetition rate.…”

Section: Treatment Of Exhaust Gases By Pulsed Streamer Dischargementioning

confidence: 99%

“…As a result, it became very important to protect the environment and to develop technologies with less energy consumption and less pollutant exhaust. Figure 5 shows the typical experimental set-up for exhaust gas treatment by a pulsed streamer discharge [47]. Gas cylinders of nitrogen (N 2 ), oxygen (O 2 ), N 2 mixed with NO, and N 2 mixed with SO 2 and H 2 O are used to simulate the exhaust gases from a thermal power station, a diesel engine, and other sources.…”

Section: Treatment Of Exhaust Gases By Pulsed Streamer Dischargementioning

confidence: 99%

“…The energy efficiency for NO removal improves with shorter pulse duration [47]. From the streak image of a pulsed streamer discharge in a coaxial electrode geometry [48,49], the propagation process of the pulsed streamer discharge is that the primary streamer initiates in the vicinity of the central rod electrode and then propagates toward the grounded cylinder electrode.…”

Section: Pulsed Durationmentioning

confidence: 99%

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Industrial Applications of Pulsed Power Technology

Takaki

Katsuki

2009

IEEJ Trans. FM

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A review of mainly the past two years is undertaken of the industrial applications of pulsed power. Repetitively operated pulsed power generators with a moderate peak power have been developed for industrial applications. These generators are reliable and have low maintenance. Development of the pulsed power generators helps promote industrial applications of pulsed power for such things as food processing, medical treatment, water treatment, exhaust gas treatment, ozone generation, engine ignition, ion implantation and others. Here, industrial applications of pulsed power are classified by application for biological effects, for pulsed streamer discharges in gases, for pulsed discharges in liquid or liquidmixture, and for material processing.Index Terms -Pulsed power, industrial application, bioelectrics, exhaust gas treatment, discharge in liquid, material processing.

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Section: Treatment Of Exhaust Gases By Pulsed Streamer Dischargementioning

confidence: 99%

Section: Treatment Of Exhaust Gases By Pulsed Streamer Dischargementioning

confidence: 99%

Section: Pulsed Durationmentioning

confidence: 99%

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Industrial Applications of Pulsed Power Technology

Takaki

Katsuki

2009

IEEJ Trans. FM

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“…Applications of the pulsed power discharge have been studied to reduce nitrogen oxides (NOx) and sulfur oxides (SOx) contained in the flue gases resulting from coalburning power plants, factories, steel plants, and automobile exhausts [10]- [13]. In order to obtain the accelerated free electrons, a power supply for fast-rising narrow highvoltage pulses is necessary.…”

Section: Application Fields Of the Mpcmentioning

confidence: 99%

Introduction of the Magnetic Pulse Compressor (MPC) - Fundamental Review and Practical Application

Choi¹

2010

Journal of Electrical Engineering and Technology

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-Magnetic switch is a kind of saturable inductor, which utilizes nonlinearity of the magnetization curve of ferromagnetic materials. The right understanding of the saturation phenomena, magnetic properties, voltage-time product, and switching characteristics of the magnetic switch is essential in designing the magnetic pulse compressor (MPC). In this paper, the historical background of research on the MPC, fundamental physical properties of the magnetic switches, and application fields of the MPC are presented. Further, an in-depth analysis of pulse compression in series and parallel MPCs is incorporated. As practical application examples, a series MPC used for water treatments and a parallel MPC used for pulsed electric field (PEF) inactivation of bacteria are cited.

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“…In the atmosphere, NO is immediately oxidized to NO 2 by oxygen (O 2 ) or ozone (O 3 ). Because NO x is toxic for human being, many researchers have studied about its removal [1][2][3]. On the other hand, NO is well known as one of the most important molecules within the living human body in the medical field.…”

Section: Introductionmentioning

confidence: 99%

Nitric Oxide Generator Based on Pulsed Arc Discharge

et al. 2009

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Nitric oxide (NO) is increasingly being used in medical applications. Currently, a gas cylinder of N2 mixed with a high concentration of NO is used in the NO inhalation system. However, this arrangement is potentially risky due to the possibility of accidental leak of NO from the cylinder. The presence of NO in air leads to the formation of nitric dioxide (NO2), which is toxic to the lungs. Therefore, an on-site generation of NO would be very desirable for patients with acute respiratory distress syndrome and other related illnesses. Previously, our group reported the production of NO using a pulsed arc discharge. In this work, the prototype of the on-site NO generator was developed and the performances of the NO generator were demonstrated for medical applications.

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Improvement of NO/sub X/ removal efficiency using short-width pulsed power

Cited by 171 publications

References 27 publications

Industrial Applications of Pulsed Power Technology

Industrial Applications of Pulsed Power Technology

Introduction of the Magnetic Pulse Compressor (MPC) - Fundamental Review and Practical Application

Nitric Oxide Generator Based on Pulsed Arc Discharge

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