scholarly journals Design and operation of a stable intense high‐temperature arc‐discharge source of hydrogen atoms and metastable trihydrogen molecules

1986 ◽  
Vol 57 (6) ◽  
pp. 1061-1065 ◽  
Author(s):  
James F. Garvey ◽  
Aron Kuppermann
Keyword(s):  
High Temperature ◽  
Arc Discharge ◽  
Hydrogen Atoms ◽  
Discharge Source

Simplified cascaded arc discharge source for production of a processing plasma

1993 ◽  
Vol 64 (4) ◽  
pp. 990-995 ◽  
Author(s):  
Yoshihiro Okuno ◽  
Shinya Yagura ◽  
Hiroshi Ishikura ◽  
Hiroharu Fujita
Keyword(s):  
Arc Discharge ◽  
Discharge Source

Design and use of an Efficient Plasma Jet Reactor for High Temperature Gas/Solid Reactions

1983 ◽  
Vol 30 ◽  
Author(s):  
F. W. Giacobbe ◽  
D. W. Schmerling
Keyword(s):  
Carbon Monoxide ◽  
High Temperature ◽  
Arc Discharge ◽  
Plasma Jet ◽  
Direct Result ◽  
Discharge Region ◽  
Plasma Flame ◽  
Powdered Carbon ◽  
High Yields ◽  
Experimental Trials

ABSTRACTA unique and efficient plasma jet reactor has been developed and used to study the high temperature production of carbon monoxide from a reaction between powdered carbon and a pure carbon dioxide plasma. The plasma jet reactor was designed to allow the injection of powdered carbon above the arc discharge region rather than into the plasma flame below the arc discharge region. High yields of carbon monoxide, produced at relatively high efficiencies, were a direct result of this technique. The plasma jet was also designed to enable rapid changing and testing of various anode insertsAverage yields of carbon monoxide in the product gases were as high as 80–87% in selected experimental trials. Carbon monoxide was produced at rates exceeding 15,000 1/hr (at STP) with a power expenditure of 52 Kw.

Laboratory soft x-ray source based on high-temperature capillary arc discharge

1991 ◽  
Author(s):  
Sergei N. Belov ◽  
Evgeny M. Golubev ◽  
Elena G. Vinokurova
Keyword(s):  
High Temperature ◽  
Arc Discharge ◽  
X Ray

scholarly journals Gliding arc triggered microwave plasma arc at atmospheric pressure for coal gasification application

2014 ◽  
Vol 32 ◽  
pp. 1460345
Author(s):  
Vishal Jain ◽  
A. Visani ◽  
C. Patil ◽  
B. K. Patel ◽  
P. K. Sharma ◽  
...  
Keyword(s):  
High Temperature ◽  
Microwave Power ◽  
Atmospheric Pressure ◽  
Plasma Torch ◽  
Microwave Plasma ◽  
Arc Discharge ◽  
Effluent Treatment ◽  
Plasma Arc ◽  
Gliding Arc ◽  
Consumable Electrodes

Plasma torch is device that efficiently converts electrical energy in to thermal energy for various high temperature applications. The conventional plasma torch comprises of consumable electrodes namely anode and cathode electrodes. The replacement of these electrodes is a complex process owing to its cooling and process shut down requirements. However, microwave plasma arc is electrode-less plasma arc system that is an alternative method to conventional arc technology for generating plasma arc. In this technique, microwave power is efficiently coupled to generate plasma arc by using the property of polar molecule to absorb microwave power. The absorption of microwave power is in form of losses due to intermolecular friction and high collisions between the molecules. This is an efficient method because all microwave power can be absorbed by plasma arc. The main feature of microwave plasma arc is its large uniform high temperature column which is not possible with conventional arc discharge methods. Such type of plasma discharge is very useful in applications where sufficient residence time for treat materials is required. Microwave arc does not require any consumable electrodes and hence, it can be operated continuously that makes it very useful for hazardous effluent treatment applications. Further, microwave cannot ionize neutral particles at atmospheric pressure and hence, a gliding arc is initiated between two thin electrodes in the cavity by applying very low power high voltage (3kV) AC source. In this report, the method for generating microwave arc of 1kW power using commercial microwave oven is elaborated.

Application and Characterization of 12-Phase AC Arc for Glass in-Flight Melting

2012 ◽  
Vol 443-444 ◽  
pp. 637-642
Author(s):  
Yao Chun Yao ◽  
Takayuki Watanabe ◽  
Kazuyuki Yatsuda
Keyword(s):  
High Temperature ◽  
Flow Rate ◽  
Temperature Region ◽  
Gas Flow ◽  
Arc Discharge ◽  
Melting Behavior ◽  
Raw Material ◽  
Gas Flow Rate ◽  
High Temperature Region ◽  
Ac Arc

A stable 12-phase AC arc was successfully generated and applied in the field of glass in-flight melting, the arc behavior was characterized by image analysis. The effects of electrode configuration and sheath gas flow rate on arc and melting behavior of granulated glass raw material were investigated. Results show that different electrode configurations leads to various arc discharge and high-temperature region. The luminance area with high-temperature region and its fluctuation reflect the change of arc discharge behavior. The vitrification degree of glass raw material is mostly dependent on the center temperature of arc. As the sheath gas flow rate increases, the ratio of luminance area decreases and the center temperature of arc increases.

Macro Quantity of Isolated Single-Walled Carbon Nanotubes Synthesized by High Temperature Pulse-Arc Discharge

2004 ◽  
Vol 10 (S02) ◽  
pp. 392-393
Author(s):  
Yoshie Murooka ◽  
Hiromochi Tanaka ◽  
Tatsuya Ichikawa
Keyword(s):  
Carbon Nanotubes ◽  
High Temperature ◽  
Arc Discharge ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Temperature Pulse ◽  
Walled Carbon Nanotubes

Extended abstract of a paper presented at Microscopy and Microanalysis 2004 in Savannah, Georgia, USA, August 1–5, 2004.

Linear arc discharge source for large area plasma processing

1997 ◽  
Vol 70 (5) ◽  
pp. 577-579 ◽  
Author(s):  
L. Bárdoš ◽  
H. Baránková ◽  
S. Berg
Keyword(s):  
Arc Discharge ◽  
Plasma Processing ◽  
Large Area ◽  
Discharge Source

Production of ultrafine particles of high-temperature tetragonal WO3 by dc arc discharge in Ar?O2 gases

2005 ◽  
Vol 7 (1) ◽  
pp. 101-106 ◽  
Author(s):  
Yumei Guo ◽  
Norihiko Murata ◽  
Kazuya Ono ◽  
Tsugio Okazaki
Keyword(s):  
High Temperature ◽  
Ultrafine Particles ◽  
Arc Discharge ◽  
Dc Arc
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