Combustion Volume 6-7

Combustion Volume 6-7

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1922 edition. Excerpt: of 11 hours, between the stops necessary for dropping and taking on the pilots. Over this period the vessel averaged 9.5 knots speed. The main object of the trip was to observe the behavior of the stoker, and not to make a scientifically rigid test of performance. Nevertheless the figures actually recorded are worthy of statement, so they are given below, for the period of 11 hours mentioned: -Coal fired, 14,876 lbs. Feed water, 115,590 lbs. Feed-water temperature, about 175 deg. F. Ashes and clinkers, 2,380 lbs. CO, in flue gases, 11 per cent to 12% per cent. Temperature of flue gases, 660 deg. to 720 deg. F. Average 680 deg. F. As regards the percentage of C0, this was checked twice by means of an Orsat apparatus, the first test giving 11.5 per cent CO, with 8 per cent free oxygen, and the second test giving 12.75 per cent CO, with 7.75 per cent free oxygen. The feed water temperature varied somewhat on account of the necessity of regulating the amount of steam admitted to the heater, but the figure given is probably a fair average. There is also a little doubt about the close accuracy of the feed-water consumption, because on one or two occasions it was necessary to run another Weir pump, not fitted with recording mechanism, for a few minutes. The engine ran at an average of 99.1 r.p.m. during the period, and indicator cards showed that 600 i.h.p. was being developed. Siemens Furnace Design A paper by Mr. Fred Clements gives an analysis, expressed in a series of elaborate charts, of the performance of a 60-ton regenerative furnace at the Park Gate Works, Rotherham, and on the basis of the results obtained considered in detail the design of a furnace of 100 tons capacity, which he regarded as the size of unit that should be adopted in more

Product details

  • Paperback | 318 pages
  • 189 x 246 x 17mm | 572g
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236655540
  • 9781236655547