. The Street railway journal . nerator unit has inherent advantages. AbrahamLincolns oft-quoted remark that You cannot fool all of the (5) Smaller space occupied, necessiating less investment inland, as well as in building. (6) Cheaper and simpler foundations required. (7) Easier lubrication. (8) The simple compact construction makes all parts easilyaccessible, and the absence of reciprocating parts considerablyreduces frictional losses, wear, danger of hot wearing surfaces,and the attendance required. (9) Reduction in repair accounts. This may not apply atpresent, but is sure to follow as the
. The Street railway journal . nerator unit has inherent advantages. AbrahamLincolns oft-quoted remark that You cannot fool all of the (5) Smaller space occupied, necessiating less investment inland, as well as in building. (6) Cheaper and simpler foundations required. (7) Easier lubrication. (8) The simple compact construction makes all parts easilyaccessible, and the absence of reciprocating parts considerablyreduces frictional losses, wear, danger of hot wearing surfaces,and the attendance required. (9) Reduction in repair accounts. This may not apply atpresent, but is sure to follow as the natural consequence fromthe simple construction after standard types of turbines havebeen developed and the bugs eliminated. (10) Lack of oil in condensed steam permits of the con-densed water being pumped hot directly to the boilers withoutdanger of injuring them, thus saving fuel, and almost entirelyeliminating cost of feed water, and minimizing boiler repairs. (11) Ability to secure increased economy by use of steam 30 lor. fUHJISTUHjlNE WITHOUT^ UPER^TTCURTS TURBINE 100 F. SUPERHEAT. ISIPLE_CON jjENSING VACUUM ~ 5 w % °-E o o K V HORIZONTAL\CORLISS \ VE CC RTICALRLISS . PARSONS . STEAMTURBINE 50 00 70 80 90 100 110 130 110 150 1G0 170 180Lbs. [nitial Gauge Pressure Street Ryjomu 2000 3000 100U E!ec\ Horse Power .:ooo ooou Street FIG. 2.—ENGINE AND TURBINE PERFORMANCE—STEAMCONSUMPTION FIG. 3.—COMPARATIVE FLOOR SPACE REQUIRED FOR THREETYPES OF PRIME MOVERS, ALL OPERATING CONDENSING people all the time, is still apt, and the mere fact that so manyprominent engineers have ordered turbo-generator units is con-clusive evidence of their merits. The chief advantages of the steam-turbine units apparentlyare as follows: (1) Lower first cost of turbine unit, including dynamo. Al-though the selling prices of these units are still high in propor-tion to their cost of manufacture, it seems certain that com-petition will ultimately, as
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
