. The street railway review . varies verygreatly. On summer nights one generator is sufficient to carry theload, while on dark days in winter all four generators are in service. In proportioning the cost everything is based pro rata on theactual steam consumption, the steam consumption in most casesbeing based on result of tests. An extract from the 1904 yearly report is as follows: Pittsburg & Lake Erie Railroad Co., McKees Rocks Power Plant. Total. Monthly Average Steam pressure, lb Coal consumption : Cars, total 265 Pounds, total 22, , Pounds per hour Ash
. The street railway review . varies verygreatly. On summer nights one generator is sufficient to carry theload, while on dark days in winter all four generators are in service. In proportioning the cost everything is based pro rata on theactual steam consumption, the steam consumption in most casesbeing based on result of tests. An extract from the 1904 yearly report is as follows: Pittsburg & Lake Erie Railroad Co., McKees Rocks Power Plant. Total. Monthly Average Steam pressure, lb Coal consumption : Cars, total 265 Pounds, total 22, , Pounds per hour Ashes, cars loaded 42 * ■ ft Ashes were 13 per et-nt weight ot the coal. Water cvaropaled: Gallons, total 20,910,000 1,742,500 Pounds per hour Pounds per hour per lb. of coal: Actual From and at 212° Boiler li. p. developed Expenses. Wages $10, $ Supplies iji6i,43 Machine Repairs 2, Coal 6, 56ai4 Total $20, $1, Per Cent. 3336 FIGS. 5 AND 6—The bad line on pressure chart was caused byletting too much coal in furnace. General Distribution. Heating $3, $ 7 <» Coinpressed air 455-39 Lighting 2, 10 Pumping Machine tools, etc Locomotive filling 1, 5-49 Total $20, 54 ? oooo Rates. Cost in cents, per Maintenance. *Total. B. h. p. hour, developed a628 H. , electric cu. ft. free air. compressed 3474 Mr. Charles Fitzgerald.—If our memory serves us aright we havea test where we used slack coal on a Murphy stoker and the ashcame down even below Mr. Campbells figure. Our coal cost us70 cents a ton delivered, and our average horse power was about 650for 20 hours. We used Murphy stokers and return tubular we started we had trouble, but after considerable experiment-ing we got our firemen so they knew how to handle
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
