The Encyclopedia Americana: A Library of Universal Knowledge, Količina 10Americana corporation, 1931 |
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Stran 152
... steam economy of those engines was usually as low as 40 pounds of steam per h.p. hour . The mechanical effi- ciency was rarely as great as 85 per cent and the electrical efficiency of the generators was rarely 75 per cent . Corliss type ...
... steam economy of those engines was usually as low as 40 pounds of steam per h.p. hour . The mechanical effi- ciency was rarely as great as 85 per cent and the electrical efficiency of the generators was rarely 75 per cent . Corliss type ...
Stran 338
... steam or the expansion of a gas , and converting those forces into mechan- ical energy in the form of motion , which may be employed for doing mechanical work , thus distinguishing it from a " machine , " which can receive motion only ...
... steam or the expansion of a gas , and converting those forces into mechan- ical energy in the form of motion , which may be employed for doing mechanical work , thus distinguishing it from a " machine , " which can receive motion only ...
Stran 339
... steam . This disadvantage is offset by using steam at higher pressures . Simple Engine . One in which the steam after having forced the piston through its stroke is exhausted into the air or into a vacuum or condenser . Compound Engine ...
... steam . This disadvantage is offset by using steam at higher pressures . Simple Engine . One in which the steam after having forced the piston through its stroke is exhausted into the air or into a vacuum or condenser . Compound Engine ...
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18th century acid alternating current American ampere hours amperes ancient anode armature battery became body book of Enoch cable called carbon cathode cell cent century charge chemical Church circuit coil conductors connected consists constitution Consult copper corpuscle cylinder direct direct current discharge effect Egypt Egyptian elec electric current electric energy electrode electrolyte electromotive force employed engine England English faradic feet France French furnace German Greek heat horse power inches industry insulated iron king known lamp later Leyden jar light lines literature London machine magnetic manufacture mass material mechanical ment metal miles motor nature negative operation oxide Paris period persons plants plate pole positive pounds pressure produced Prussia resistance Saint speed steam temperature term theory tion tricity tube United usually voltage volts vote wattmeter welding wire writing York