This action may take several minutes for large corpora, please wait.
doc#118 | electric arc applying a porous graphite | anode | cooled by a transpiring gas (Argon). Thus |
doc#118 | the energy transferred from the arc to the | anode | was partly fed back into the arc. It was |
doc#118 | into the arc. It was shown that by proper | anode | design the net energy loss of the arc to |
doc#118 | design the net energy loss of the arc to the | anode | could be reduced to approximately 15% of |
doc#118 | energy. A detailed energy balance of the | anode | was established. The anode ablation could |
doc#118 | balance of the anode was established. The | anode | ablation could be reduced to a negligible |
doc#118 | requirements are particularly severe at the | anode | . In free burning electric arcs, for instance |
doc#118 | the total arc power is transferred to the | anode | giving rise to local heat fluxes in excess |
doc#118 | transferred to the cooling medium of the | anode | . </p><p> The higher heat transfer rates at |
doc#118 | <p> The higher heat transfer rates at the | anode | compared with those at the cathode can |
doc#118 | picture somewhat. The heat transfer to the | anode | is due to the following effects: 1. Heat |
doc#118 | energy of the electrons impinging on the | anode | . This energy transfer depends on the current |
doc#118 | , the temperature in the arc column, the | anode | material, and the conditions in the anode |
doc#118 | anode material, and the conditions in the | anode | sheath. 2. Heat transfer by molecular conduction |
doc#118 | arc column. </p><p> The heat transfer to the | anode | in free burning arcs is enhanced by a hot |
doc#118 | jet flowing from the cathode towards the | anode | with velocities up <formul>. This phenomenon |
doc#118 | decrease of current density from cathode to the | anode | ). Hence, the flow conditions at the anode |
doc#118 | anode). Hence, the flow conditions at the | anode | of free burning arcs resemble those near |
doc#118 | evidence that the cooling requirements for the | anode | of free burning arcs are large compared |
doc#118 | will modify these conditions; however, the | anode | is still the part receiving the largest |