Heating Efficiency of Twin Torch Plasma Arc
نویسندگان
چکیده
منابع مشابه
1 Arc Plasma Torch Modeling
Arc plasma torches are the primary components of various industrial thermal plasma processes involving plasma spraying, metal cutting and welding, thermal plasma CVD, metal melting and remelting, waste treatment and gas production. They are relatively simple devices whose operation implies intricate thermal, chemical, electrical, and fluid dynamics phenomena. Modeling may be used as a means to ...
متن کاملFactors Affecting the Capture Efficiency of a Fume Extraction Torch for Gas Metal Arc Welding
Welding fumes are classified as Group 2B 'possibly carcinogenic' and this prompts to the implementation of local exhaust ventilation (LEV). The fume extraction torch with LEV integrated into the tool is the most attractive solution but its capture efficiency is often disappointing in practice. This study assesses the main parameters affecting fume capture efficiency namely the extraction flow r...
متن کاملEffect of Asymmetrical Distribution of Current Density on the Three-Dimensional Non-Transferred Arc Plasma Torch
In this study, three-dimensional steady-state non-transferred arc plasma torch was investigated by computational fluid dynamics (CFD) method with user defined function (UDF). Two-equation current density profile was developed to simulate the complex plasma flow inside the torch. The effect of asymmetric distribution of current density (ADCD), particularly the deviation distance (distance betwee...
متن کاملMultiscale Finite Element Modeling of Arc Dynamics in a DC Plasma Torch
The dynamics of the electric arc inside a direct current non-transferred arc plasma torch are simulated using a three-dimensional, transient, equilibrium model. The fluid and electromagnetic equations are solved numerically in a fully coupled approach by a multiscale finite element method. Simulations of a torch operating with argon and argon-hydrogen under different operating conditions are pr...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: ISIJ International
سال: 2005
ISSN: 0915-1559,1347-5460
DOI: 10.2355/isijinternational.45.1084