What studies have been published about welcome arc?
Best insight from top research papers
Wire Arc Additive Manufacturing (WAAM) has gained attention for fabricating small-medium metal components. However, the fatigue performance of WAAM components compared to wrought and cast alloys is not well understood . Optical measurements of emissions during an arc event in 1970 showed heating of the atmosphere within the arc region and the presence of certain concentrations of gases . The formation of hydrocyanic acid in the electric arc and reactions taking place in the arc with different poles and gaseous media have been studied . A microcontroller-based device has been developed to detect and signal the appearance of arcing at low voltages, which can help prevent fires . Current interruption of direct current in a vacuum has been investigated, and it has been found that a current zero can be achieved by attaching capacitances and inductances parallel to the arc .
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| Papers (5) | Insight |
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01 Oct 2013 | The provided paper is about the transient response of the arc and the influence of the application magnetic field to the arc in a small direct current vacuum arc. There is no mention of any other studies about the "welcome arc" in the paper. |
01 May 2017 | The provided paper does not mention any studies specifically about "welcome arc." |
8 Citations | The provided paper does not mention any studies specifically about the "electric arc." The paper discusses the formation of hydrocyanic acid in the electric arc and various reactions taking place in the arc with different poles and gaseous media. |
31 Citations | The provided paper does not mention any studies specifically about the "welcome arc." |
01 Jan 2022 2 Citations | The provided paper does not mention any studies specifically about "welcome arc." |
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What is the gas temperature in a gliding arc discharge?5 answersThe gas temperature in a gliding arc discharge can vary depending on the experimental conditions. In one study, the rotational temperature of the plasma produced by a gliding arc plasmatron (GAP) ranged from 2,400 to 3,000 K, while the vibrational temperature ranged from 4,700 to 6,000 K. Another study found that the electron excitation temperature of a gliding arc discharge was 0.8153 eV at atmospheric pressure, and increased to 5.3165 eV at an air pressure of 0.4 MPa. Additionally, the spectroscopic diagnostics revealed that the rotational temperature of the gliding arc discharge plasma was approximately 550-850 K, while the excitational temperature ranged from 8200 to 10,800 K. These results indicate that the gas temperature in a gliding arc discharge can be in the range of thousands of Kelvin, with variations depending on factors such as pressure and experimental conditions.
What is the gas temperature in a atmospheric gliding arc discharge?5 answersThe gas temperature in an atmospheric gliding arc discharge varies depending on the experimental conditions. In one study, the electron excitation temperature of the gliding arc discharge was found to be 0.8153 eV at atmospheric pressure, and it increased to 5.3165 eV at an air pressure of 0.4 MPa. Another study reported rotational temperatures (Tr) in the range of 0.1-0.13 eV and vibrational temperatures (Tex) in the range of 0.42-0.44 eV for a rotating gliding arc discharge. Additionally, the same study found that the electron density fluctuated between 1.32x10^15 cm^-3 and 4.56x10^15 cm^-3 for varying argon flow rates and applied voltages. These results indicate that the gas temperature in an atmospheric gliding arc discharge can vary depending on factors such as pressure, applied voltage, and gas flow rate.
How does the surrounding gas affect the gliding arc structure?5 answersThe surrounding gas has a significant influence on the structure of the gliding arc. Gas dynamics, such as the flow rate and turbulence, affect the rotation and shape of the arc, as well as the voltage fluctuations and power of the plasma discharge. Different noble gases and gravity conditions also impact the behavior of the gliding arc. In air, the gliding arc's electromechanical behavior is affected by the arc current evolution, luminous points on the cathode, and the interaction with the surrounding air. In the conversion of CH4 and CO2 into synthesis gas, the electrode structure and gas parameters, such as the summit angle of the internal electrode and the feed flow rate, influence the stability and efficiency of the reaction. Additionally, the discharge modes of the gliding arc, such as gliding discharge, breakdown discharge, multi-cycle breakdown, and short-cutting discharge, are affected by the turbulent flow and input power.