. Appleton's dictionary of machines, mechanics, engine-work, and engineering. cd: i tu the discharge is 266 gallons per stroke, or when working full speed, 1862 gallons per minute. Themechanical effect due to the fall and quantity of water consumed is nearly 140 horse-power. Themechanical effect involved in the discharge of the last-named quantity of water is nearly 74 horse-power, so that supposing the efficiency of the engine and pumps to be on a par with each other, the efficiency of the two being „? = 71 15, the efficiency of the engine alone „ = * + = 1 + 71 = -85, or •n the language of C
. Appleton's dictionary of machines, mechanics, engine-work, and engineering. cd: i tu the discharge is 266 gallons per stroke, or when working full speed, 1862 gallons per minute. Themechanical effect due to the fall and quantity of water consumed is nearly 140 horse-power. Themechanical effect involved in the discharge of the last-named quantity of water is nearly 74 horse-power, so that supposing the efficiency of the engine and pumps to be on a par with each other, the efficiency of the two being „? = 71 15, the efficiency of the engine alone „ = * + = 1 + 71 = -85, or •n the language of Cornish engineers, 85 per cent, is the duty of the engine. WATER-WHEELS. 841 WATER-WHEELS—Theory and Construction of. Although in localities where mineral reservoirsof motive power are convenient, the ever-available steam-engine has much diminished the importanceof hydraulic movers, these must always continue to be the most economical, and therefore the mostfrequently resorted to, in situations where the liquid element can be attained in sufficient abundance,and u
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Keywords: ., bookcentury1800, booksubjectmechanicalengineering, bookyear1861
