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Advantages and Disadvantages
Fundamentals of Furnace Economy
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abscissa arc furnaces bath bottom brick busses Calcium carbide calculation carbon electrodes charge circuit conductor connected load cost cross section curves decrease diagram diameter door efficiency elec electric efficiency electric furnaces Engrs Equation ferro-alloy furnaces Figure firebrick frequency fuel-fired furnaces furnace body gases given graphite electrodes heat flow heat losses HFI furnace higher increase indirect-heat induction furnaces induction heat inductive resistance influence input inside film insulation kwhr layer length limited lining material melting furnaces metal naces ohmic operation output phase power consumption power factor proportional proximity effect radiation ratio reactance reactor rectangular furnace refractory resistance furnaces resistor roof shape shell sidewalls single-phase skin effect slag smaller steel temperature temperature difference thermal conductivity thickness three-phase total power Trans transformer trodes uniform voltage drop wall losses water cooling wattmeter Wmax Wumax