. The street railway review . eaves a head room ofabout 18 ft. between the basement floor and the engine room floordirectly under the turbine units. The individual condenser for eachturbine set is located in this space, directly umler the turbine. bor the turbine units there are condensers of the inverted baro-metric type. Owing to the limited height at which the condensersare placed above the water level the customary tail pipe could not beused, but is replaced by a 12-in. centrifugal pump pro<lucinR thesame suction effect as a water column in a tail pipe. This keepsthe condenser clear of
. The street railway review . eaves a head room ofabout 18 ft. between the basement floor and the engine room floordirectly under the turbine units. The individual condenser for eachturbine set is located in this space, directly umler the turbine. bor the turbine units there are condensers of the inverted baro-metric type. Owing to the limited height at which the condensersare placed above the water level the customary tail pipe could not beused, but is replaced by a 12-in. centrifugal pump pro<lucinR thesame suction effect as a water column in a tail pipe. This keepsthe condenser clear of water although the bottom of the condenserIS only about 10 ft. above the water level in the discharge water is brought into the building by a concrete tunneltmder the engine room floor and is lifted into the condenser at aheight of 18 ft. above the intake level by the vacuum establishedby the operation of the two dry air pumps. These pumps operatecontinuouslv while the condenser is in use and serve to remove. INTERIOR OF POWER HOISE AT WVuMINli .WE. .\ND 2N1) ST., I5OO-KU. TURIIINE LXITS. The bearings of the two reciprocating engines arc equipped withthe fittings of a gravity oiling system. Drips from all the bearingsare led to the suction well of a steam pump which raises the oil toa combination tank and filter located near the roof of the engineroom. In the south half of the building there are at present installedfour 1,500-kw. turbine-driven alternators and preparation has beenmade for the installation of two more units of like capacity. Thetwo turbine sets nearest the center of the building are of the single-stage type, the other two are of the double-stage type, and the twowhich will soon be installed will be of the single-stage type. Eachof these turbine sets is of the Wcstinghouse-Parsons type operatingat 1,500 r. p. m. and driving the armature of a 1,500-kw., 13,200-volt alternator. The speed of the turbine units is controlled byg
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
