Bulletin Engineering Experiment Station Volume 25-34

Bulletin Engineering Experiment Station Volume 25-34

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1911 edition. Excerpt: ... the fact that the larger l'1glI15 require less steam per horse power hour. Item 6 gives the estimated brake horse power of the_plaI1I which represents the actual mechanical horse power dellveffid by the fly wheel to engine belt at full rated capacity. _ Item 7 includes the cost of engine room and every thing in it except the electrical machinery. Items 7-10 give the costs per rated indicated horse power. Item 9 includes the cost of stack, boiler room and everything 1I1 the boiler room. Items 11-14 give the yearly expenses per rated indicated horse, ' power. Item 10 includes the entire cost of plant per rated indicated horse power exclusive of the electrical machinery. The electrical machinery is not considered before item_47 because the object is first to arrive at a cost of purely rnechanlfiil power. Item 17 gives the pounds of water evaporated pflf Pound f moist fuel. These amounts vary with constant boiler efliciency because of the different temperatures at which the water is fed to the boiler. The costs per indicated horse power year and per brake horse Power Year are based upon the rated indicated horse Power and brake horse power respectively and not UPOII ' hcents Power flfitllally developed at the various load factors below 100%' The costs per brake horse power hour and per kilowatt hour are basfid "POE the power actually delivered to the belt and to the switch board respectively. EQUIPMENT OF PLANTS ON TABLE I 100 I. H. P. Plant: Simple, non-condensing, high speed engines. Fire tube boilers. I 200 I. H. P. Plant: Compound, non-condensing, high speed engines. Fire tube boilers. 400 I. H. P. Plant: Compound, condensing, high speed engines. Fire tube boilers. 600 I. H. P. Plant: De Laval turbines. Fire tubshow more

Product details

  • Paperback | 182 pages
  • 189 x 246 x 10mm | 336g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 123699292X
  • 9781236992925