Mechanical stokers; including the theory of combustion of coal
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Lieferung aus: Vereinigte Staaten von Amerika, Usually ships in 1-2 business days, Real shipping costs can differ.
Von Händler/Antiquariat, amitcj.
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 Excerpt: ...for steam. Combustion rates of from 30 to 40 lbs. per sq. ft. can be maintained for long periods and from 50 to 55 lbs. for short peaks. Due to the lightness of this fuel the high air velocities through the upper part of the fuel bed carry considerable quantities of fine particles up into the combustion chamber which are deposited at the rear of the furnace. This condition produces a tendency for the fuel bed to drift and become heavy over the dump grates. In order to overcome this difficulty, it is desirable to make changes from the standard method of introducing the air so that the air supply to the rear sections can be controlled independent of the air supply to the front sections. This tends to reduce the tendency to drift and at the same time, makes it possible to burn out completely such fuel as does lodge over the rear sections. Chain grate stokers are used successfully on the various grades of Colorado lignite the only requirement so far as the fuel is concerned being that it must not be too coarse. If a considerable percentage will pass over a iy2" screen, it is too coarse for best results and should be reduced to finer size. Suitable furnace designs have been developed to burn this coal at combustion rates up to 45 lbs. per sq. ft. per hour and this combustion rate can be increased with special designs. Surface ignition occurs promptly and the drying process which must precede ignition goes on rapidly enough to permit ignition to the full depth in a travel of two or three feet. While lignite has a very large percentage of volatile based on dry fuel there is little or no trouble securing smokeless operation for the reason that the furnace constructions required for satisfactory ignition provide the necessary conditions for smokeless combustion... Paperback, Label: RareBooksClub.com, RareBooksClub.com, Product group: Book, Published: 2012-03-06, Studio: RareBooksClub.com.

Lieferung aus: Vereinigte Staaten von Amerika, Shipping costs to: USA.
Von Händler/Antiquariat, Ergodebooks.
RareBooksClub.com, 2012-03-06. Paperback. Used:Good. Ships Fast. 24*7 Customer Service.

Von Händler/Antiquariat, Ergodebooks [8304062], RICHMOND, TX, U.S.A.
This item is printed on demand.

Lieferung aus: Vereinigte Staaten von Amerika, plus shipping, Shipping area: DOM.
Von Händler/Antiquariat, ExtremelyReliable, TX, Richmond, [RE:3].
Paperback.