 | Hazelton boiler company, New York - 1897 - 162 Seiten
...per hour, and must also be able to carry off the products of the combustion of this coal. Draught is due to the difference in weight between the column of hot gases in the chimney and a column of air of equal height and area at the temperature of the atmosphere. It will... | |
 | Sydney Ferris Walker - 1907 - 486 Seiten
...after passing through the boiler flues, enter the boiler chimney and escape at the top. The measure of the difference in weight between the column of hot gases in the boiler chimney, and that of an equivalent column of atmospheric air outside is the " motive column,"... | |
 | John Robins Allen, James Herbert Walker - 1918 - 332 Seiten
...and other products of combustion. The chimney produces a "draft" or movement of the air because of the difference in weight between the column of hot gases in the chimney and the cold outside air. The intensity of the force produced depends upon the average difference... | |
 | LAWRENCE B. CHAPMAN - 1922 - 336 Seiten
...Natural Draft.—Natural draft is similar in principle to induced mechanical draft. It is produced by the difference in weight between the column of hot gases in the stack and a column of cold air of the same height as the stack. Natural draft varies with the height of the stack, the temperature... | |
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draft" or movement of the air because of the difference in weight between the column of hot gases in the chimney and the cold outside air. 