Official Proceedings Volume 6

Official Proceedings Volume 6

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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. 1898 edition. Excerpt: ...on dynamometer trucks, if desired, by a long flue or conduit through which air is delivered by a fan at varying velocities as required. Measure the condensation in the manner so carefully developed in the paper which has been presented, and check the results by the measurement of the heat carried away by the air currents. The condensations and efiiciencies thus determined will apply unquestionably to the running conditions on a locomotive. MR. G. W. RHODES: I would like to ask the Secretary how he accounts for the difference in Table II between the standing tests and the running tests. We are a little at a disadvantage because we do not know what coverings the letters designate. I would imagine that "G," is the North-Vestern cement covering (laughter), because I notice that in the standing test the "pounds of steam condensation per minute," Table II, is 3.03, but in the running test it is 5.70, that is, it is the best and the worst of the lot. If any of the supply men who sell boiler coveringvare present, I would like very much to have them tell me, on the quiet, whether their material is D1. I find that D, stands pretty well; in standing test it shows 2.91, but in the running test it is decidedly the best, "pounds of steam of condensation" being 5.03. I have no doubt that a good many of us will busy ourselves to find out what coverings are represented by the letters, and if any of the supply men will enlighten us we will be much pleased. The explanation for assuming that "G" was the N orth-Western cement covering is this: Might there not be something in the conductivity of the material when exposed to different temperatures? For instance, the standing test was made, probably, in a more

Product details

  • Paperback | 158 pages
  • 189 x 246 x 9mm | 295g
  • United States
  • English
  • black & white illustrations
  • 1236829220
  • 9781236829221