Convention, Volume 18 |
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Halaman 42
... efficiency of eighty - one per cent , would produce 402.84 - watt hours per pound of coal . In the tabulated statement of data collected by this same committee , the highest results of practice given were 208 - watt hours per pound of ...
... efficiency of eighty - one per cent , would produce 402.84 - watt hours per pound of coal . In the tabulated statement of data collected by this same committee , the highest results of practice given were 208 - watt hours per pound of ...
Halaman 45
... efficiencies of engines and dynamos in lighting stations are maintained quite high , notwithstanding the variable ... efficiency , due to variable load , is , therefore , attributable to the boiler . There is still another class of ...
... efficiencies of engines and dynamos in lighting stations are maintained quite high , notwithstanding the variable ... efficiency , due to variable load , is , therefore , attributable to the boiler . There is still another class of ...
Halaman 48
... efficiency of ninety - five per cent , we have four pounds of coal per electrical horse - power . COST OF INSTALLATION PER ELECTRICAL HORSE - POWER . Cost of engines , 6.17 X $ 44.5 ยท Cost of boilers , 6.17 X $ 24 . Cost of buildings ...
... efficiency of ninety - five per cent , we have four pounds of coal per electrical horse - power . COST OF INSTALLATION PER ELECTRICAL HORSE - POWER . Cost of engines , 6.17 X $ 44.5 ยท Cost of boilers , 6.17 X $ 24 . Cost of buildings ...
Halaman 51
... let us assume that its efficiency under all con- ditions is seventy - five per cent . Then , in order that we may have at average working one electrical horse- power , we must provide : 52 1222 1.547 Boilers , = 2.07 at $ 24 51.
... let us assume that its efficiency under all con- ditions is seventy - five per cent . Then , in order that we may have at average working one electrical horse- power , we must provide : 52 1222 1.547 Boilers , = 2.07 at $ 24 51.
Halaman 54
... efficiency of seventy - five per cent . We see from the diagram that the battery is charging 8 A. M. to about 4 P. M. Twenty - five per cent of the energy thus stored will , therefore , be lost . It will be apparent that this bears no ...
... efficiency of seventy - five per cent . We see from the diagram that the battery is charging 8 A. M. to about 4 P. M. Twenty - five per cent of the energy thus stored will , therefore , be lost . It will be apparent that this bears no ...
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alternating current amperes apparatus arc dynamos arc lamps arc lighting armature BEGGS boilers candle-power capacity carbons cell cent central station managers charge circuit Cleveland closed coil committee connected convention curve diagram direct current disruptive discharges distribution dynamo Edison illuminating companies efficiency Electric Company Electric Light Association Electric Light Company electrical horse-power electro-motive force energy feed storage gas engine gentlemen give horse-power hour Illuminating Company incandescent indicated horse-power induction installation instrument insulation interest Light and Power lightning arrester magnetic maximum measured monocyclic system National Electric Light open coil operation paper phase plant plates polyphase system pound of coal Power Company power wire practice PRESIDENT Professor question SEELY single-phase spark gaps standard candle steam storage storage battery tanks teaser coil three-phase three-phase system three-wire system to-day Total fixed annual transformers units voltage voltmeter volts watt hours watts