Arc Discharges - an overview | ScienceDirect TopicsThe arc discharge is sustained by electron emission from tungsten filaments (. mm in diameter and mm in length) held by molybdenum supports on coaxial filaments

Gas Discharges - an overview | ScienceDirect TopicsHigh-pressure mercury lamps were the first high-intensity discharge (HID) lamps (see Section VII). First produced in , these lamps are high temperature arc discharges

Investigation of Micro-arc Discharge in Deep Sea Water at -- &#; We investigated micro-arc discharges generated in highly conductive sea water at high pressure up to . MPa for the first time. For generation of micro-arc discharges, : Vladislav Gamaleev, Hiroshi Furuta, Akimitsu Hatta

Experimental investigation of discharge characteristics of -- &#; The “arc channel mutation” occurs in the process of arc motion under high pressure. The electron excitation temperature in the process of gliding arc discharge is

Gliding arc gas discharge - ScienceDirect-- &#; Physical parameters of the equilibrium phase of the gliding arc evolution usually are similar to those for regular, high pressure (p>.–. atm) arc discharges. In general,

High Discharge Pressure:What,Types,Causes,Several FactsHigh discharge pressure cause: The reason of high discharge pressure is briefly summarize in below, . When the compressor of the air conditioning system carry the cooling

Hydrogen Balmer Spectrum from a High‐Pressure Arc -- &#; University of Rostock Abstract The interpretation of hydrogen Balmer spectra emitted from a high-pressure arc discharge (Radtke and G&#;nther, Contrib. Plasma Phys.

Preparation of carbon nanotubes by DC arc discharge -- &#; The air pressure for the highest yield of multi walled CNTs was Torr. In addition, the quantity of amorphous carbon and other nanoparticles in the process

High pressure arc discharge - helivium.com-- &#; HIGH-PRESSURE-ARC-DISCHARGE With sunlamps that operated at higher gas pressures the number of ionisations would decrease due to the shortening of the

Arc Discharge | Article about Arc Discharge by The Free At higher pressures the thermionic emission of an arc discharge with chaotically shifting cathode spots is transformed into a thermionic arc discharge without a cathode spot. Applications. Arc discharge is widely used to smelt metals in arc furnaces, in gas-discharge light sources, for electric welding, and as a plasma source in plasmatrons.

Arc discharge and pressure characteristics in pulsed-- &#; The arc pressure also presented cyclical changes during the plasma gas on/off, and the changing scale and the axial mean value were inversely proportional to the plasma gas switching frequency. The periodically oscillating arc and arc pressure would be beneficial to the refinement of grain structure during the welding process.

Arc-Discharge | Scientific.NetThe result indicates that arc discharge occurs in the process of experiments, and the intensity of arc discharge of interface increases with increasing of electric current and sliding velocity. As increasing of the arc discharge intensity, friction coefficient shows a tendency of slightly increase.

The transition from spark to arc discharge and its -- &#; Because of the high electrical power the arc discharge melts the consumable electrode and it evaporates at a rate increasing with temperature, resulting in aerosol mass output rates of up to grams per hour depending upon the electrode material, gas composition, and arc current (Stein et al. ; Wei et al. ).

High Discharge Pressure:What,Types,Causes,Several FactsThe high discharge pressure is an unwanted situation which is occurs by the present of insufficient compressor of the refrigeration system in the cooling medium which may be water or gas. The term of insufficient compressor means the leakage should be contained by the discharge valve of the compressor which is situated outside of the compressor.

The high-pressure glow discharge in air - researchgate.net-- &#; The paper describes observations on the high-pressure glow in air between copper and tungsten electrodes and gives characteristics for discharge lengths from to mm and currents from . to .

(PDF) Arc discharge instalation for fullerene -- &#; The common methods of C preparations are arc process, thermal evaporation, combustion and CVD [, ,]. It can withstand high temperature and pressure since it is extremely stable.

[PDF]Study of Arc Discharge Induced Electrode and Its Electric arc discharge is one of the most popular research areas for many applications, such as plasma torches[, ], circuit breakers[-], arc welding[], surface flashover and

Pressure-dependent synthesis of high-quality few-layer -- &#; Among these several methods, the arc discharge, which has been extensively used for the production of fullerenes and carbon nanotubes, was also considered as a practical method for producing FLG on a relatively large-scale (gram scale production) due to generation of high temperature (more than , &#;C) during the arc discharge.

Spectral intensity of the N emission in argon -- &#; Stable and reproducible arc discharges can be generated in gas mixtures of .% nitrogen in argon up to pure nitrogen, absolute pressures between − and mbar and discharge currents of – mA. Reset

Modeling of high pressure arc-discharge with a fully -- &#; This work addresses the modeling of high pressure electric discharge in an arc-heated wind tunnel. The combined numerical solution of Poisson’s equation, radiative transfer equations, and the set of Favre-averaged thermochemical nonequilibrium Navier–Stokes equations allows for the determination of the electric, radiation, and flow fields, accounting for their mutual interaction.

Arc discharge and pressure characteristics in pulsed-- &#; The arc pressure also presented cyclical changes during the plasma gas on/off, and the changing scale and the axial mean value were inversely proportional to the plasma gas switching frequency. The periodically oscillating arc and arc pressure would be beneficial to the refinement of grain structure during the welding process.

The transition from spark to arc discharge and its -- &#; Because of the high electrical power the arc discharge melts the consumable electrode and it evaporates at a rate increasing with temperature, resulting in aerosol mass output rates of up to grams per hour depending upon the electrode material, gas composition, and arc current (Stein et al. ; Wei et al. ).

Atmospheric pressure arc discharge with ablating graphite -- &#; in the considered type of the arc discharge with the strong anode ablation, the cathode could be heated by two major mechanisms: a) bombardment by the ions generated in the near-cathode plasma (standard mechanism for the high pressure arcs) or b) by the particles evaporated from the anode that brought their latent heat of evaporation to the

Modeling and Simulation of Low Current Atmospheric and The results show different discharge dynamics across the pressure range (.– MPa), with an arc discharge obtained at high pressure and a low current arc discharge observed at atmospheric pressure. A large density gradient at higher pressure causes a

High Discharge Pressure:What,Types,Causes,Several FactsThe reason of high discharge pressure is briefly summarize in below, . When the compressor of the air conditioning system carry the cooling medium. The cooling medium can be water or liquid gas. . Temperature of the cooling medium is more than the normal temperature for the refrigeration cycle in air conditioning system. .

pressure arc discharge - -- &#; Figure basicelements modifiedpolypropylene desiccator sealed preventnano- particle inhalation. kV, mA controlled current power supply Gamma High Voltage Research Inc., RR– R/CPC/M Wdc arc discharge between two identical consumable electrodes. consumableelectrodes we used Au wireform mmdiameter. materialswere clamped copperrods

high-pressure discharge arc - Translation into French-- &#; Translations in context of "high-pressure discharge arc" in English-French from Reverso Context: The invention relates to an electronic circuit and to a method of supplying a high-pressure discharge arc lamp ().

[PDF]Study of Arc Discharge Induced Electrode and Its Electric arc discharge is one of the most popular research areas for many applications, such as plasma torches[, ], circuit breakers[-], arc welding[], surface flashover and

Effect of turbulent flow on an atmospheric-pressure AC -- &#; A high-power gliding arc (GA) discharge was generated in a turbulent air flow driven by a kHz alternating current electric power supply. The effects of the flow rate on the characteristics of the GA discharge were investigated using