Finding and Stopping Waste in Modern Boiler Rooms; A Reference Manual to Aid the Owner, Manager and Operator in Securing and Maintaining Boiler Plant Economy Volume 2

Finding and Stopping Waste in Modern Boiler Rooms; A Reference Manual to Aid the Owner, Manager and Operator in Securing and Maintaining Boiler Plant Economy Volume 2

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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. 1921 edition. Excerpt: ...0.25 in. draft over the fire, when boilers are operating at rating, and 0.5 in. when operating at 200% of rating. The forced draft type is adapted to all grades of bituminous coal, all grades of anthracite coal and to coke breeze. The pressure in the wind box varies from 1 to 3 in. according to the kind of fuel burned, and ratings of 150 to 200% can be maintained continuously. UNDERFEED STOKERS The Taylor Stoker is adapted to bituminous, semi-bituminous and semi-anthracite coals, while lignite gives very fair results. Forced draft only is used. For normal ratings 1.5 to 2 in. pressure in the wind box is used, with 0.03 in. suction in the furnace. For maximum load, 3 to 4 in. in the wind box is required and 0.05-in. suction in the furnace. Long continued loads of 200 to 300% of rating are maintained, while much higher peaks can be handled up to 350%. Forced draft permits perfect mechanical control of the air supply. It is independent of weather conditions, and is intense enough to burn low-grade coals. The stoker and the air fan are driven by the same motor or engine. The normal rate of combustion is 30 to 40 lb. per sq. ft. per hr., but 60 to 80 lb. can be burned during short peaks. Boilers can be brought up to 250% load from banked fires in 10 to 15 min. The Riley Stoker is adapted to all grades of bituminous coals, such as West Virginia and Pennsylvania grades, down through to the Illinois and Indiana varieties and the Western lignites. Forced draft is used with pressures in the wind box of from 0 to 5 in., depending upon the rating at which the boiler is operated. Peak load operation at from 200 to 300% of rating is normally obtained. There should be a slight suction present in the furnace at maximum capacity. The question of capacity...show more

Product details

  • Paperback
  • 189 x 246 x 7mm | 254g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236958101
  • 9781236958105