Hydraulic engineering; a practical treatise on the principles of water pressure and flow and their application to the development of water power, including the calculation, design and construction of water wheels, turbines, and other details of hydraulic power plants (1909)
American School (Chicago, Ill.), Black, Adolph, Turneaure, Frederick Eugene, 1866- · Chicago American School of Correspondence · leaf 359
, of power actually used. Since there are approximately 8,640 hours in a year, and since onehorse-power is approximately equal to f of one kilowatt, the values inFigs. 197 and 198 are mutually convertible by means of the conversionfactor f of 8,640 = 6,480. Or Fig. 198 may be constructed directly… … Fig. 197. Rates of Fig. 196 Reduced to Cost perHorse-Power per Year, of Power Used. WATER-POWER DEVELOPISIENT 265
