File:The Street railway journal (1901) (14758435062).jpg

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English:

Identifier: streetrailwayjo181901newy (find matches)
Title: The Street railway journal
Year: 1884 (1880s)
Authors:
Subjects: Street-railroads Electric railroads Transportation
Publisher: New York : McGraw Pub. Co.
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

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Text Appearing Before Image:
ngineering During the Last Ten Years (Engineering,Aug. 23, 1901) : Steamer Kaiser Wilhelm der Grosse, built in 1898—Two engines, triple expansion, four cylinders, diameters being presumably the power which is expected to be de-veloped in driving each ship at its normal speed, but thesame engines for land service with variable loads wouldprobably be given two ratings, one for normal loads cor-responding approximately to the most economical steamconsumption per horse-power, and the other to the maxi-mum load. The engines being of quite dififerent dimen-sions and piston speeds and being supplied with steam atdififerent pressures, their ratings, both for economical andmaximum loads, would correspond to dififerent rates ofexpansion. Assuming rates of expansion from 16 to 30,back pressure 3 lbs. absolute, with hyperbolic expansion,and neglecting the effect of clearance and of the diagramfactor, the horse-power developed by these engines wouldbe as follows for different rates of expansion:
Text Appearing After Image:
450 STREET RAILWAY JOURNAL. Vol. XVIII. No. 14. Mean effective pressure * Horse ■power Rate of Steam Steam Kaiser King expansion 180 lbs. 250 lbs. Wilhelm Alfred 30 33-68 9,115 10,146 28 24.85 35-67 9,675 10,745 26 26.48 37-95 10,310 11,432 24 28.34 40-53 11,035 12,210 22 30.48 43-50 11,868 13.104 20 32.96 46-95 12,833 14.144 18 3590 51-03 13,978 15.372 16 39-44 55-95 15,356 16,854 * Reduced to the low-pressure cylinders.

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Volume
InfoField
1901
Flickr tags
InfoField
  • bookid:streetrailwayjo181901newy
  • bookyear:1884
  • bookdecade:1880
  • bookcentury:1800
  • booksubject:Street_railroads
  • booksubject:Electric_railroads
  • booksubject:Transportation
  • bookpublisher:New_York___McGraw_Pub__Co_
  • bookcontributor:Smithsonian_Libraries
  • booksponsor:Smithsonian_Libraries
  • bookleafnumber:472
  • bookcollection:smithsonian
Flickr posted date
InfoField
27 July 2014
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