Abstract
A plasma torch has been introduced to the industrial field as a superhigh temperature heat source for waste disposal and metal smelting. From the viewpoint of design of power supply for arc plasma and suitable control of arc energy, arc voltage-current characteristics are important factors. Arc voltage changes due to arc length, gas flow rate, and contamination of debris. This report investigates the change of arc voltage caused by mixing of iron powder as for the case in which iron is dissolved with argon arc plasma. Pqrticle compositions and transport properties for Ar/Fe mixture gas are calculated by Saha relations and Chapman-Enskog approximation, respectively, and thus voltage-current characteristics of argon arc without gas flow are theoretically calculated. Moreover, through the test using a quartz tube wall stabilizer in the small current area below 100A, it is found that arc voltage is decreased by maximum 20% by mixing of a few percents of iron powder, and shows almost the same tendency as the above theoretical calculations. 20 refs., 14 figs., 2 tabs.
Adachi, K;
Amakawa, T;
Inada, T
[1]
- Central Research Institute of Electric Power Industry, Tokyo (Japan)
Citation Formats
Adachi, K, Amakawa, T, and Inada, T.
Voltage transition of low current argon arcs by mixing of iron powder. Arc voltage characteristics in low current and long-gap; Teppun no konnyu ni yoru argon arc no den{prime}atsu henka. Shodenryu{center_dot}cho gap ryoiki no arc den{prime}atsu tokusei.
Japan: N. p.,
1991.
Web.
Adachi, K, Amakawa, T, & Inada, T.
Voltage transition of low current argon arcs by mixing of iron powder. Arc voltage characteristics in low current and long-gap; Teppun no konnyu ni yoru argon arc no den{prime}atsu henka. Shodenryu{center_dot}cho gap ryoiki no arc den{prime}atsu tokusei.
Japan.
Adachi, K, Amakawa, T, and Inada, T.
1991.
"Voltage transition of low current argon arcs by mixing of iron powder. Arc voltage characteristics in low current and long-gap; Teppun no konnyu ni yoru argon arc no den{prime}atsu henka. Shodenryu{center_dot}cho gap ryoiki no arc den{prime}atsu tokusei."
Japan.
@misc{etde_10149782,
title = {Voltage transition of low current argon arcs by mixing of iron powder. Arc voltage characteristics in low current and long-gap; Teppun no konnyu ni yoru argon arc no den{prime}atsu henka. Shodenryu{center_dot}cho gap ryoiki no arc den{prime}atsu tokusei}
author = {Adachi, K, Amakawa, T, and Inada, T}
abstractNote = {A plasma torch has been introduced to the industrial field as a superhigh temperature heat source for waste disposal and metal smelting. From the viewpoint of design of power supply for arc plasma and suitable control of arc energy, arc voltage-current characteristics are important factors. Arc voltage changes due to arc length, gas flow rate, and contamination of debris. This report investigates the change of arc voltage caused by mixing of iron powder as for the case in which iron is dissolved with argon arc plasma. Pqrticle compositions and transport properties for Ar/Fe mixture gas are calculated by Saha relations and Chapman-Enskog approximation, respectively, and thus voltage-current characteristics of argon arc without gas flow are theoretically calculated. Moreover, through the test using a quartz tube wall stabilizer in the small current area below 100A, it is found that arc voltage is decreased by maximum 20% by mixing of a few percents of iron powder, and shows almost the same tendency as the above theoretical calculations. 20 refs., 14 figs., 2 tabs.}
place = {Japan}
year = {1991}
month = {Jul}
}
title = {Voltage transition of low current argon arcs by mixing of iron powder. Arc voltage characteristics in low current and long-gap; Teppun no konnyu ni yoru argon arc no den{prime}atsu henka. Shodenryu{center_dot}cho gap ryoiki no arc den{prime}atsu tokusei}
author = {Adachi, K, Amakawa, T, and Inada, T}
abstractNote = {A plasma torch has been introduced to the industrial field as a superhigh temperature heat source for waste disposal and metal smelting. From the viewpoint of design of power supply for arc plasma and suitable control of arc energy, arc voltage-current characteristics are important factors. Arc voltage changes due to arc length, gas flow rate, and contamination of debris. This report investigates the change of arc voltage caused by mixing of iron powder as for the case in which iron is dissolved with argon arc plasma. Pqrticle compositions and transport properties for Ar/Fe mixture gas are calculated by Saha relations and Chapman-Enskog approximation, respectively, and thus voltage-current characteristics of argon arc without gas flow are theoretically calculated. Moreover, through the test using a quartz tube wall stabilizer in the small current area below 100A, it is found that arc voltage is decreased by maximum 20% by mixing of a few percents of iron powder, and shows almost the same tendency as the above theoretical calculations. 20 refs., 14 figs., 2 tabs.}
place = {Japan}
year = {1991}
month = {Jul}
}