Google Patents Electric arc furnace controlĭownload PDF Info Publication number US3597518A US3597518A US15035A US3597518DA US3597518A US 3597518 A US3597518 A US 3597518A US 15035 A US15035 A US 15035A US 3597518D A US3597518D A US 3597518DA US 3597518 A US3597518 A US 3597518A Authority US United States Prior art keywords arc output controller impedance proportional Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.
Google Patents US3597518A - Electric arc furnace control I know these things what you mention, but.For me it is not important right now what kind of module i used (is it MEF or something else).or what kind on dimension for resistor I used (is it "m" or "mm").or how big current I get (some "A" on some "GA").or what kind on material I used.US3597518A - Electric arc furnace control My model (Electric arc Furnace) works quite well Comsol 3.5, but I want to build up this now in Comsol 4.1, because I can see that there are many more options, like MF module I can calculate the Liquid metal pressure. My question is….”how to connect ELECTRICAL CIRCUIT to physical model ?”….I tried to used Terminals but something is wrong and I don´t know what ? The resistant is just test model. If i know this, then I can build up my Electric arc Furnace in right module (MF or MEF), but right dimensions and connect electrodes two deferent power source what i have or what I build before in ELECTRICAL CIRCUIT.
#Electric arc furnace startup time how to#
Now I have Comsol 4.1 ( we just got a newer version) and now I do not know anymore how to connect my circuit to the model ? There is no SPACE Circuit Editor anymore and tried many ways but don’t get it work….įundamentals of Electrical Engineering and Electrical MachinesĮ-Mail: know these things what you mention, but.For me it is not important right now what kind of module i used (is it MEF or something else).or what kind on dimension for resistor I used (is it "m" or "mm").or how big current I get (some "A" on some "GA").or what kind on material I used.įor me is important how to connect ELECTRICAL CIRCUIT (where I made power source) to the model !. Otherwise SPACE Circuit Editor does not work at all. Resistors R1 and R2 are introduced, because then I have some connection of the source to the ground. To build up such a scheme, I have used previously in Comsol 3.5 SPACE Circuit Editor, where I have written a program: For this reason I need two independent power sources. I want that electrode currents goes directly from top to bottom electrodes. Electrode pairs are connected to two separate independent power sources as shown in Fig.2. There are two top electrodes and two bottom electrodes.
To know how Comsol 4.1 works I built up first one simple test model (Fig.1). However, I have some problems with my model. I would need to make calculations of forces acting within molten metal in electric arc furnace due to electromagnetic fields. I have to make 3D computer model of liquid metal movement due to effects of electromagnetic field. My work is focused on electromagnetic fields and their effects. My doctoral work thesis is titled „Electric arc furnace with controllable liquid metal circulation”. I am writing to you from Tallinn University of Technology, Estonia.