. The street railway review . GAS PLANT GENERATING PLANT TOTAL $ % . s % S Average tender Accepted 35, STEAM PLANT Lowest tender Highest tender Mean tender Recommended TABLE No. VIII. SUMMARY OF GUARANTEES. P&ODUCiR PUKT GENBRlTIlItt PUNTJ^RiUdloKi POWER smios CnUiSTEE B. T. D. in Gu P>;ial ETej with 12,000 BTB Cotl B. T, B. T. n. perB,H,P. Er. EiQetioEIToy Kinetic EfcJ 12,000 Bin Coal Butj* Lb, Coil per I. W. E. Highest Lowest Average Accepted 9,5007,0008,7298,500 12,30
. The street railway review . GAS PLANT GENERATING PLANT TOTAL $ % . s % S Average tender Accepted 35, STEAM PLANT Lowest tender Highest tender Mean tender Recommended TABLE No. VIII. SUMMARY OF GUARANTEES. P&ODUCiR PUKT GENBRlTIlItt PUNTJ^RiUdloKi POWER smios CnUiSTEE B. T. D. in Gu P>;ial ETej with 12,000 BTB Cotl B. T, B. T. n. perB,H,P. Er. EiQetioEIToy Kinetic EfcJ 12,000 Bin Coal Butj* Lb, Coil per I. W. E. Highest Lowest Average Accepted 9,5007,0008,7298,500 12,30018,00013,87613,700 10,44015,29011,77511,630 * Estimated. la S p ft , -^ .^ .■--*> n». 7th Year, No. 4—Sept. 29,1905.] DAILY STREET RAlfyWAY REVFEW. 719 The engineers report on llic accepted tenders shows a total excesscost of gas plant of per cent actual, or 14 per cent with certainextras charged to the gas plant for additional ground and buildingrequirements; yet the annual saving in operation is estimated suflTiciencto annul the excess cost of gas plant in less than two years. Capital-ized at 5 per cent interest this aimual saving rcpresejits a capital of$1,485,000, or considerably more than the original cost of the power station. In other words, the gas plant might have co-ittwice the actual amount and still realize a definite annual saving ovesteam power. Incideulally tlie eflicicncy guarantees arc of are shown in table 8. The heat conversion elTiciency of thegenerating equipment at two-thirds load is as high as 25 per cent,giving an overall plant eflicicncy of about 18 per cent. The averagewell efiuipped steam plant rarely exceeds 10
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
