Open AccessCalculation of Arc Power Losses in the Simplified Model of Intensively Blasted Electric Arc
Author(s) -
Josef Senk,
Ilona Lázníčková,
Ivana Jakubová
Publication year - 2017
Publication title -
plasma physics and technology
Language(s) - English
Resource type - Journals
eISSN - 2336-2634
pISSN - 2336-2626
DOI - 10.14311/ppt.2017.1.40
Subject(s) - anode , arc (geometry) , electric arc , argon , power (physics) , mechanics , channel (broadcasting) , materials science , nuclear engineering , electrical engineering , mathematics , physics , thermodynamics , atomic physics , electrode , engineering , geometry , quantum mechanics
In previous versions of the simplified model of intensively blasted electric arc burning in argon in the arc heater's anode channel, the authors used the constant total power loss coefficient for estimation of arc power losses in all anode channel individual parts. Using this approach, the model with relatively low computational complexity has led to very good agreement between the total computed and experimentally obtained values, but when the computed and measured power losses of individual anode channel segments have been compared, considerable differences have been revealed. In the modified model, theoretically computed net emission coefficient of argon is used in the energy equation to express the arc power losses. This way, satisfactory accordance is achieved between not only the total, but also partial measured and computed values. Exemplary results are given in figures and tables and discussed.