Mr
JIAN WANG
(NCEPU)
08/07/2016, 13:30
Dielectrics, Insulation, and Breakdown
Poster Presentation
Aiming at restraining the free conducting wire-type particles that are common but dangerous within DC GIS, a more realistic platform of coaxial cylindrical electrode is set up using high-speed camera and PD monitor, in the meanwhile, as to observe the motion, PD and breakdown of the particles. The research work starts from analyzing the charging behavior of the particle under DC voltage, then...
Prof.
Masahiro Akiyama
(Iwate University)
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
Underwater streamer discharges produced by pulsed power have applications for water treatment such as an algae treatment at dam, clean of water and sewage and so on. Streamers propagation, bubble formation along streamers, bubble collapse, generation of shock waves and extinction of bubbles were observed by previous work. In this work, a target situation is flowing water from a moving rod...
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
The lightning are natural phenomenon of extraordinary complexity that has significant influence on life on Earth in many ways. Discharges cause risk of potential effects on the safety of living beings and are capable of causing damage to the integrity and operation of electric power and communications systems. Therefore, many researches are focused to understand the phenomenon, but there is...
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
Carbon fiber reinforced composite materials are widely employed on aircraft because of its superior structural and weight performances. Carbon fiber composites possess a much lower electrical conductivity as compared to traditional metallic materials, which lead to serious damage when subject to lightning strike. In order to protect the carbon fiber composites, metallic mesh are used to cover...
Mr
Anıl Civil
(Aselsan Inc.)
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
Using generalized building blocks for the design of power electronics converters is advantageous in terms of scalability, modularity, power density, and reliability. For the control of those power electronic converters composed of Power Electronics Building Blocks (PEBBs), an easily scalable and modular control system should also be integrated. In this paper, a hierarchical control system...
Dr
Paul Melnik
(Woodruff Scientific Inc)
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
The Facility for Laboratory Reconnection Experiments (FLARE) [1] is an intermediate laboratory experiment currently under construction at Princeton University by a consortium of five universities and two Department of Energy (DoE) national laboratories, located at the PPPL. The goal of FLARE is to provide experimental accesses to new regimes of the magnetic reconnection process and related...
Mr
Apurva Kulkarni
(Indian Institute of Science, Bangalore)
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
Compulsators are AC synchronous generators designed to maximize the short circuit current that could be delivered by the generator. Compulsators have certain advantages over capacitor banks such as higher energy density, occurrence of natural current zero and flexibility in current shaping. Hence, they have become an attractive choice as a power source for the Electromagnetic Launch (EML)...
Mr
Dmitriy Bochkov
(Pulsed Technologies Ltd.), Dr
Victor Bochkov
(Pulsed Technologies ltd)
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
In the paper the most recent results of research and development efforts made by Pulsed Technologies ltd are presented. Design and essential characteristics of more than 36 types of high-power high-voltage switches TDI- and TPI-thyratrons (pseudospark switches) [1], TGI- thyratrons at 250 MW pulse and 0.5 MW average power, spark gaps, as well as X-ray tubes of the new generation are described....
Taichi Sugai
(Nagaoka University of Technology)
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
We have studied the water treatment by spraying into a pulsed discharge space in air, to decompose refractory organic compounds included in industrial waste water. In practical application, reactors of large scale are required to treat a large quantity of water. For that, electrodes with diameter of long distance is needed. Hence, the effect of the distance between electrodes was investigated....
170.
Effect of Solution Electric Conductivity on Surfactant Treatment Using Nanosecond Pulsed Powers
Mr
Kai Shimizu
(Tokushima University)
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
Development of the treatment technology of household effluent and industrial wastewater is imperative for environment conservation. In recent years, water treatments with electric discharges have been studied as one of the water treatment technologies. We have studied the decomposition of organic compounds, as indigo carmine and surfactant, in the water by streamer discharges generated with...
Mr
Takashi Ishikawa
(Kindai University)
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
Nitrogen oxides ($NO_{X}$) and particulate matter (PM) emitted from diesel exhaust causes awfully problem to the atmosphere. Current processing techniques are using the catalyst with a precious metal. By contrast, treatment of diesel exhaust using non-thermal plasma (NTP) might reduce the amount of the catalyst that the system uses. Topic of diesel exhaust treatment by NTP has been...
Mr
Yang Yang
(Hua zhong University of Technology and Science)
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
The electromagnetic launch system generates strong magnetic field radiation when discharging, which may degenerate or even destroy the function of semiconductor devices. Based on fundamental theory of Electromagnetics and Semiconductor Physics, this paper established magnetic injury effect model of typical semiconductor devices, such as diode, transistor and etc. The relation equations of...
Allen L. Garner
(Purdue University)
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
Mutliple theoretical and experimental studies have investigated the species generation,, ignition, flame stability, and combustion enhancement due to nanosecond electric pulses (NSEPs) for potential applications in plasma assisted combustion (PAC) and ignition (PAI) [1,2] . While many experiments use standard pulse generators with fixed pulse duration, rise- and fall-times, and peak voltage,...
Prof.
Bian Xingming
(North China Electric Power University), Prof.
Tiebing Lu
(North China Electric Power University)
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
Corona effects and its related electromagnetic environment on the operated conductors are important problems for high voltage transmission lines. The climate environment is quite complex in China, HVDC transmission lines may go through many high relative humidity areas,consequently, the corona performance of HVDC transmission lines will be greatly affected.
In the present paper, a corona...
Masatoshi Fue
(iwate university)
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
A large volume plasma with streamers is generated around an electrode with a sharp edge when a pulsed high voltage is applied to the electrode in water. Discharge in water is applied to the industry such as improving water quality. However, some of discharge mechanism in water has not been cleared. In this study, we generated the discharge in water with changing the water conductivity,...
Mr
Thomas Manegold
(Goethe University Frankfurt)
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
This contribution is about characterization of a Lorentz-drift based plasma accelerator in preparation for a colliding plasma experiment. The aim is to investigate the basics of a high energy density collision zone by accelerating two or more plasma sheets simultaneously against each other. A possible application for this device is the production of high densities for a plasma stripper.
The...
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
In the report the results of investigation of intensive directed controlled X-Ray radiation connected with bubble cavitation phenomena in fast oil jet and supersonic water jet [1] are presented and discussed. The total activity of X-Ray generation was about $Q\ge 0.1$ Ci.
The mechanism of X-Ray generation is connected with the sequential tandem of cavitation and shock-wave processes inside...
Mr
Tomohide Ikemoto
(Tokushima University)
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
Ozone is a strong oxidizer and becomes low environmental load because ozone is composed of oxygen atoms. Therefore, ozone is expected to be utilized in many fields, and high concentrated and efficient ozone producing method is desired. Although the ozone production using dielectric barrier discharges is generally used because of obtaining high concentration, the production efficiency is not...
Dr
Boris Gutman
(State University of New York, Nassau Community College), Mr
Giovanni Villanova
(Student, State University of New York, Nassau Community College), Mr
Nicholas Belluccia
(Student, State University of New York, Nassau Community College)
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
The plasma generators consists of a circular orifice anode and an inner cathode enclosed in a chamber and positioned in line with the nozzle. The otherwise closed chamber has a vortex-stabilizing gas inlet, and gates in the region of arc column and is heated and accelerated. By adjusting the flow of gas, one can force the arc column to contract anode-bore, outside of the chamber, flame-like...
Cheng Zhang
(Institute of Electrical Engineering, Chinese Academy of Science)
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
In an inhomogeneous electric fields, there is several kinds of discharge mode existing in microsecond-pulse gliding discharges, which could be widely used in different fields. In this paper, in order to investigate mode transition among different discharge modes, effect of gas flow, pulse repetition frequency (PRF), and electrode distance on microsecond-pulse gliding discharge was studied by...
Mr
Bai-Peng Song
(Xi'an Jiaotong University)
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
Multipactor discharges on dielectric window seriously limits the generation and transmission of high power microwaves (HPM), which blocks the development of microwave technology. In order to understand its physical mechanism deeply, a simulation model based PIC Monte Carlo is built in this paper. The influences of microwave electromagnetic field and dielectric surface electrostatic field are...
YOU Haoyang
(Xi’an Jiaotong University)
08/07/2016, 13:30
Dielectrics, Insulation, and Breakdown
Poster Presentation
Based on a large number of engineering practices, free conducting particles are unavoidable in GIS, which is largely threaten the security operating of GIS devices compared with fixed conducting particles. Scholars chose sphere particles and air as medium for easy analysis and calculation, which is not agree with practice situation. Therefore, the free conducting particle experiment device and...
Tao Shao
(Institute of Electrical Engineering, Chinese Academy of Science)
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Oral Presentation
Nanosecond pulse discharges in air and other gases at atmospheric pressure can behave various forms of discharges, such as corona, diffuse, spark or arc. In this paper, characteristics of three typical nanosecond pulse discharges, including diffuse discharges, gliding discharges and synthetic jet, in an inhomogeneous electric field are presented.
Diffuse discharges can be obtained at...
Dr
Xiandong Li
(Huazhong university of science and technology)
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
The shock wave generated by underwater pulse discharge has been used in many industrial applications such as electrohydraulic forming, oil stimulation and rock fragmentation. From an industrial point of view, how to achieve high electrohydraulic transformation efficiency is one of the main focus. To solve this problem, the comprehensive understanding of the sophisticated phenomenon is...
Cheng Zhang
(Institute of Electrical Engineering, Chinese Academy of Science)
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
Diffuse discharge sustained by nanosecond pulses can generate volume discharge at atmospheric pressure, which has been widely studied since 2010s. Although the fast rising time limits the formation of spark stream under certain condition in nanosecond-pulse discharges, the pulse repetition rate and gap spacing may also affect the discharge mode. Our previous work showed that nanosecond-pulse...
Huantong Shi
(Tsinghua University)
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
PPG-3 is a small-scale pulsed power device built to study the physical process of single wire electrical explosion (EEW). It is composed of a capacitor bank of 10nF charged to 0-60kV, a laser-triggered switch, a 50 ohm transmission line and a discharge chamber housing the exploding wire. The voltage and current waveforms of the exploding wire were measured with a capacitive divider and a...
Andrew Fierro
(Sandia National Laboratories)
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
Largely absent from kinetic, low-temperature plasma simulations is the capability for simulating radiation transport. It is largely acknowledged that self-produced radiation from gas discharges may have an impact on plasma formation and there is a need to include this physics into modern simulation codes. As such, there has been some effort in including photon dynamics into plasma...
Mr
Ryo Nakamura
(Kumamoto University)
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
Next generation type of ignition system has been developed in a gasoline internal combustion engine called as “Plasma-assisted combustion technology” [1]. This technology is considered to improve an engine performance through increasing the lean burn flammability and reducing emissions by applying non-equilibrium plasma to gasoline. However, the detailed effect of non-equilibrium plasma on...
Ms
Xi Li
(China Academy of Engineering Physics)
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
Low temperature plasma surface processing is one of the most effective ways to improve the hydrophily of polytetrafluoroethylene(PTFE) films. In order to increase surface treatment area and research the processing effects, a three-dielectric-layer barrier discharge device is used in this experiment. That is, one more dielectric layer is inserted into the gas gap between the primary dielectric...
Yongjie Ding
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
Airflows always bring the change of the distribution of charged particles, and also induce the discharge mode transitions. With a specific arrangement of discharge electrodes, this work focus on the interaction between discharges and airflows, and present the pre-ionization actions of upstream discharges for downstream discharges under airflows
The DBD reactor consists of two pair of...
Mr
Scott Rice
(Michigan State University)
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
Multipactor [1] is a resonant phenomenon in which an electromagnetic field causes a free electron to impact a surface, resulting in the surface emitting one or more secondary electrons. If the surface geometry and electromagnetic fields are appropriately arranged, the secondary electrons can then be accelerated and again impact a surface in the bounding geometry. If the net number of...
Dr
Liang Yang
(Dalian University of Technology)
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
This paper presents experiments carried out on atmospheric pressure surface dielectric barrier discharge plasma actuators. Two parts concerning these actuators are addressed in this work: First, the effect of a DC bias on the electrohydrodynamics force induced by the AC discharge actuator for airflow control is investigated. A special designed corona like discharge potential probe is used to...
Mr
Chaoliang Jin
(Huazhong University of Science and Technology)
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
**ABSTRACT:** Electromagnetic launch technology(EML) is a prime candidate for furture long range artillery systems. Pulse thyristor is one of the key components in pulse power supply(PPS). Mutiple modules are fired sequentially to generate flattop waveform for the load. However, in the circumstance, thyristors are easy to fail. In this paper, the pulse thyristors’ reliability was researched...
Liqiu Wei
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
The research of nanosecond pulse discharge has received extensive attention, it is important to study on self -sustaining condition of gas discharge in atmospheric air flow. In this paper, we are focus on the initiating and extinguishing boundaries of nanosecond pulse discharge under different air different airflow conditions.
An DBD volume discharge is generated between two parallel...
Tomohiko Yamashita
(Guraduate School of Science and Technology, Kumamoto University)
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
We are investigating a new method to recycle metal and plastic from metal-coated plastics used as components of automobiles and electronics using pulsed power. In this study, we used CD-R as an example and investigated the separation of metal (silver layer) and plastic (polycarbonate basis) from CD-R using pulsed power. The pulse power from a magnetic pulse compression generator having the...
Tang Jingfeng
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
Repetitive nanosecond discharges have received considerable attentions for their wide industrial applications. Among these plasma applications, a large volume discharge in atmospheric pressure is currently one of the most widely proposed methods. This paper presents nanosecond volume discharge behaviors under high-speed airflows. ICCD pictures and discharge electrical characteristics are...
Mr
Ganesh Avhad
(IIT Bombay)
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
High voltage equipment like transformers, circuit breakers, etc. are vital for reliable power supply. Condition monitoring of these equipment is essential to avoid loss of revenue and unscheduled outages that happen because of catastrophic failures. Usually, these failures are a result of sustained corona or partial discharges and may also be due to system conditions that stress the equipment...
Tao Shao
(Institute of Electrical Engineering, Chinese Academy of Science)
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
Epoxy is used in the manufacture and electricity industry for a wide range of applications. However, it will easily form three-pronged and accumulate a lot of charge on the epoxy surface under high field strength. In this paper, dielectric barrier discharge (DBD) with a plate-in-parallel configuration was used to generate non-thermal plasmas for the surface modification of epoxy. The...
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
An ionocraft is an asymmetrical capacitor that uses high voltage (> 20 kV) to produce thrust in the air without requiring any combustion or moving parts. The high voltage ionizes the gas present between the two electrodes by corona effect and moves this ionized gas in a direction defined by the shape of the electrodes. The principle of ionic Wind propulsion with corona-generated charged...
ZhiYuan Li
(Huazhong University of Science and Technology)
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
A dynamic shock wave induced by underwater high pulsed current discharge has a wide potential applications in industrial and civil fields, such as rock fragmentation, electrohydraulic cleaning, and oil stimulation, etc. In order to promote the application of the dynamic shock wave, a test stand of underwater pulsed current discharge is designed and constructed. The main capacitor is 3 μF, and...
Dr
Mykhailo Vysotskyy
(Kiev national Shevchenko univ, Kiev, Ukraine), Prof.
Vladimir Vysotskii
(Kiev national Shevchenko univ, Kiev, Ukraine)
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
One of the optimal ways of generation of coherent hard radiation is connected with Free Electron Laser on relativistic particles. Unfortunately, the effectiveness of “usual” FEL is very low ($dN/dn<0.001$ quanta/particle). The possibilities of optimization of FEL and creation of tandem short wave laser with extremely high efficiency ($dN/dn>>1$ quanta/particle) are discussed. The main role in...
Mrs
Chengyan Ren
(Institute of Electrical Engineering, Chinese Academy of Sciences)
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
Characteristics of plasma synthetic jet (PSJ) actuators driven by repetitive pulsed discharge have drawn much attention. In this paper, the PSJ actuator is composed of a pair of tungsten electrodes and a boron nitride cavity without a cap. The cavity has a diameter of 8 mm and volume of 400 mm³. The distance between two electrodes ranges from 1 mm to 4 mm. A homemade generator CMPC-40D is used...
Dr
Jianfeng Xie
(Huazhong Univ. of Sci.&Technol.), Prof.
Xiaotao Han
(Huazhong Univ. of Sci.&Technol.)
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
A Space-Time-Controlled Multi-Stage Pulsed Magnetic Field (Stic-Must-PMF) forming and manufacturing technology is introduced in Wuhan National High Magnetic Field Center, the technology is based on spatially strategically placed multiple coil systems and each coil can be addressed individually by its associated power supply with precise timing control. Such well-designed space-time...
Mr
Anıl Civil
(Aselsan Inc.)
08/07/2016, 13:30
High Voltage Design, Devices, Testing, and Diagnostics
Poster Presentation
In this work, lightning discharges and their effects on control & communication cables and antenna systems are investigated. The mechanism of lightning is described in detail and electric and magnetic fields created by lightning discharges are examined. An experimental test setup is designed and implemented in order to observe induced voltages on cables or antennas caused by lightning...
takuma oikawa
(Iwate university)
08/07/2016, 13:30
Plasmas, Discharges, and Electromagnetic Phenomena
Poster Presentation
Pulse discharge in water has many applications, such as cleaning water at dams and lake, creating chemical active species and so on. In the study of discharge in water, application and generation mechanism have been studied in recent years. However, the mechanism has not been made clear completely yet. In high repetition discharges, it has not been cleared yet. In high repetition discharges,...
