. The street railway review . ss ii would act as such in all ordinary weather, and the guysare provided for safety in severe weather. The stack shows Aic. 20. 1903.] STREET RAILWAY REVIEW. 527 in. draft, with one boiler working to rating, with a tiMnpcrature of523 degrees in uptake. There is installed a p. standard Coehranc open feed walerheater. which is supplied with water at 100 degrees from the hot wellby a low pressure pump (4ix6.\6 in.) of Laidlaw-Dunn-Gordonmake. This pump is located in condenser pit. and its supply conies Maniber. When the condenser has regained the vacu
. The street railway review . ss ii would act as such in all ordinary weather, and the guysare provided for safety in severe weather. The stack shows Aic. 20. 1903.] STREET RAILWAY REVIEW. 527 in. draft, with one boiler working to rating, with a tiMnpcrature of523 degrees in uptake. There is installed a p. standard Coehranc open feed walerheater. which is supplied with water at 100 degrees from the hot wellby a low pressure pump (4ix6.\6 in.) of Laidlaw-Dunn-Gordonmake. This pump is located in condenser pit. and its supply conies Maniber. When the condenser has regained the vacuum it willihrow ihc valve in the opposite direction, and the engine will againoperate condensing. To demonstrate the workings of this valve dur-ing the test, the vacuum was broken on one of the engines (whileunder ordinary load) and the engine was operated from condensingto atmosphere, and back to condensing, in less than one minute. =--1 t - .. ■jH-.^—ij-^^;. ^ .^.-Hi, //<?-^#^ -»HJ V.~ ■■■ -^^. ..^ PLAN OP POWER STATION—STARK ELECTRIC R. R., O. by gravity from hot well just outside of the building. The heateris placed immediately back of the stack, and takes up space of butlitllc consequence. The steam supply of the healer is ihc CNbaust of liniKr feedpumps, low pressure pump, condensers and exciter engines. Underordinary conditions there would be more exhaust .steam than re•luired, so the condensers and exciter engines arc arranged to runcondensing at will. However, it will re<|nire the exhaust steam of allthe auxiliaries to maintain a feed temperature of 200 degrees ormore, when the entire plant is working to its rating. A recent test of 15,000 lb. of water passing through heater, withexhaust steam from one Ixjiler feed pump, one condenser and oneexciter engine, raised the feed water from 100 degrees (hot well)to 210 degrees. The sleam from each large engine is condensed by a 14 x 18 x 24-in. single double acting Laidlaw-Uunn-(
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
