Velocity and texture of a plasma jet created in a plasma torch with fixed minimal arc length
Abstract
A new plasma jet (PJ-100) plasma spraying torch with a fixed minimal arc length was tested and the basic working parameters were measured and evaluated. The velocity of the plasma exiting both the cylindrical and the conical anode nozzles was assessed by measuring the thrust generated by the plasma jet and by photographing the translation of plasma clouds (parts with different brightnesses) in the last third of the length of the plasma plume. The basic characteristics of the argon/hydrogen plasma jets (enthalpy, mean temperature, mean plasma velocity and effective exhaust thrust velocity) were determined for different working regimes, for both the cylindrical and the conical nozzles. The thermal efficiency of the new plasma torch is between 70% and 74% for the plasma generation power up to 90kW. The plasma plume generated in the cylindrical nozzle has a homogeneous radial temperature (and velocity) distribution with a full laminar flow.
Source:
Plasma Sources Science and Technology, 2009, 18, 1Collections
Institution/Community
VinčaTY - JOUR AU - Vilotijević, Miroljub N. AU - Dacic, B. AU - Božić, Dušan PY - 2009 UR - https://vinar.vin.bg.ac.rs/handle/123456789/3627 AB - A new plasma jet (PJ-100) plasma spraying torch with a fixed minimal arc length was tested and the basic working parameters were measured and evaluated. The velocity of the plasma exiting both the cylindrical and the conical anode nozzles was assessed by measuring the thrust generated by the plasma jet and by photographing the translation of plasma clouds (parts with different brightnesses) in the last third of the length of the plasma plume. The basic characteristics of the argon/hydrogen plasma jets (enthalpy, mean temperature, mean plasma velocity and effective exhaust thrust velocity) were determined for different working regimes, for both the cylindrical and the conical nozzles. The thermal efficiency of the new plasma torch is between 70% and 74% for the plasma generation power up to 90kW. The plasma plume generated in the cylindrical nozzle has a homogeneous radial temperature (and velocity) distribution with a full laminar flow. T2 - Plasma Sources Science and Technology T1 - Velocity and texture of a plasma jet created in a plasma torch with fixed minimal arc length VL - 18 IS - 1 DO - 10.1088/0963-0252/18/1/015016 ER -
@article{ author = "Vilotijević, Miroljub N. and Dacic, B. and Božić, Dušan", year = "2009", abstract = "A new plasma jet (PJ-100) plasma spraying torch with a fixed minimal arc length was tested and the basic working parameters were measured and evaluated. The velocity of the plasma exiting both the cylindrical and the conical anode nozzles was assessed by measuring the thrust generated by the plasma jet and by photographing the translation of plasma clouds (parts with different brightnesses) in the last third of the length of the plasma plume. The basic characteristics of the argon/hydrogen plasma jets (enthalpy, mean temperature, mean plasma velocity and effective exhaust thrust velocity) were determined for different working regimes, for both the cylindrical and the conical nozzles. The thermal efficiency of the new plasma torch is between 70% and 74% for the plasma generation power up to 90kW. The plasma plume generated in the cylindrical nozzle has a homogeneous radial temperature (and velocity) distribution with a full laminar flow.", journal = "Plasma Sources Science and Technology", title = "Velocity and texture of a plasma jet created in a plasma torch with fixed minimal arc length", volume = "18", number = "1", doi = "10.1088/0963-0252/18/1/015016" }
Vilotijević, M. N., Dacic, B.,& Božić, D.. (2009). Velocity and texture of a plasma jet created in a plasma torch with fixed minimal arc length. in Plasma Sources Science and Technology, 18(1). https://doi.org/10.1088/0963-0252/18/1/015016
Vilotijević MN, Dacic B, Božić D. Velocity and texture of a plasma jet created in a plasma torch with fixed minimal arc length. in Plasma Sources Science and Technology. 2009;18(1). doi:10.1088/0963-0252/18/1/015016 .
Vilotijević, Miroljub N., Dacic, B., Božić, Dušan, "Velocity and texture of a plasma jet created in a plasma torch with fixed minimal arc length" in Plasma Sources Science and Technology, 18, no. 1 (2009), https://doi.org/10.1088/0963-0252/18/1/015016 . .