Susanne
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