Water Power Engineering: The Theory, Investigation and Development of Water PowersMcGraw Publishing Company, 1908 - 787 Seiten |
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Abner Doble annual average British thermal units buckets canal capacity cent considerable constant construction cost crest cubic feet designed determined diagram diameter DISCHARGE IN CUBIC draft tube drainage area effect efficiency Electrical World energy equation evaporation fall feet per second Flow of Water foot head formula friction full gate gate opening gauge governor height Holyoke horizontal horse power Hydraulic hydrographs impulse wheel inches increase installation Jour June Kilbourn Leffel load curve loss machine manufacturers Masonry Dams maximum means method Meuse river operation penstock pipe pondage Power Company power development pressure rainfall reaction wheel relation Replenishing revolutions revolutions per minute river run-off runner shaft shown in Fig shows square miles Storage stream flow Sudbury River surface TABLE tail water tion Trans units utilized valve variations various vary velocity vertical water power Water Wheel weir Wisconsin River
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Seite 232 - Fuertes's Water and Public Health i2mo, i 50 Water-filtration Works. i2mo, 2 50 Ganguillet and Kutter's General Formula for the Uniform Flow of Water in Rivers and Other Channels.
Seite 36 - Every body continues in its state of rest or of uniform motion in a straight line, except in so far as it may be compelled by impressed forces to change that state.
Seite 36 - Change of motion is proportional to the impressed force and takes place in the direction of the straight line in which the force acts.
Seite 143 - The times in which different volumes of dry air become saturated with watery vapor (or saturated within a given per cent.) are nearly proportional to the volumes ; • (m) The vapor already formed diffuses itself in the atmosphere much more rapidly than it is formed from the surface of the water (this assumes of course that there are no convection currents of air to affect the evaporation or the diffusion).
Seite 75 - Hydraulics. The Flow of Water through Orifices, over Weirs, and through Open Conduits and Pipes.
Seite 141 - ... evaporation is nearly inversely proportional to the pressure of the atmosphere. (d) The rate of evaporation of moisture from damp, porous substances of the same material is proportional to the extent of the surface presented to the air, without regard to the relative thickness of the substances. (e) The rate of evaporation from different substances mainly depends upon the roughness of, or inequalities on, their surfaces, the evaporation going on most rapidly from the roughest or. most uneven...
Seite 145 - Harrison, JT On the Subterranean Water in the Chalk Formation of the Upper Thames, and its Relation to the Supply of London.
Seite 141 - ... best vaporizers of moisture; (/) The evaporation from equal surfaces composed of the same material is the same, or very nearly the same, in a quiescent atmosphere, whatever may be the inclination of the surfaces; thus a horizontal plate with its damp face...
Seite 365 - D, and the water is led to them by a short trunk or penstock, leading from an opening cut in the planks, M. Flume wheels are set in the center of the floor of D, and D is filled with water. They discharge through the floor of D (not shown on the drawing) and out of the three culverts, N", N, N, into the tail-race, E.
Seite 663 - NOTE: Annual costs include interest at 5 per cent., depreciation and repairs on plant, oil and waste, labor and fuel, (coal at $4.00 per ton).