Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 400
ric furnace—for fused AbO.. . Electric furnace—for iron and steel. advantages of the electric furnace may be summarized chiefly asfollows: Electrical energy gives pure, unadulterated heat to themateria] which is to be treated, while many of the combustionmethods involve the transmission of heat by… … 20 30 Fig. 21. Losses of Heat in Melting Metals Copied from The Electric Furnace, by Alfred Stansfield Fig. 21 gives a graphical representation of the heat lost andutilized in various types of furnaces for melting metals. The chief reason for the very low efficiencies of combustionfurnaces is that…
Electrical engineering
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