Download pdf Popular Treatise on the Warming and Ventilation of Buildings; Showing the Advantages of the Improved System of Heated Water Circulation,

Download pdf Popular Treatise on the Warming and Ventilation of Buildings; Showing the Advantages of the Improved System of Heated Water Circulation,

Popular Treatise on the Warming and Ventilation of Buildings; Showing the Advantages of the Improved System of Heated Water Circulation, &C. &C. &C.cCharles James Richardson

Popular Treatise on the Warming and Ventilation of Buildings; Showing the Advantages of the Improved System of Heated Water Circulation, &C. &C. &C

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Author: Charles James Richardson
Number of Pages: 32 pages
Published Date: 01 May 2012
Publisher: Rarebooksclub.com
Publication Country: Miami Fl, United States
Language: English
Format: PDF
ISBN: 9781231539965
Download Link: Popular Treatise on the Warming and Ventilation of Buildings; Showing the Advantages of the Improved System of Heated Water Circulation, &C. &C. &C
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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. 1839 Excerpt: ...slightest cause, independent of the superior density of the external atmosphere, such as the course of the wind, the casual currents in the room, will prevent the ready exit of the air, and the cold from without is quite as likely to press in as the impure air to pass out. Who has not felt the cold currents of air descending on his head when he was in a large room, occupied closely, although sashes in the skylights were opened to produce a contrary effect? It is necessary, in order to procure proper ventilation, not subject in any great degree to be thus counteracted, to make use of mechanical means to draw the air out of the room, and expel it through such openings; the best manner to do this is, to warm by any practicable means the openings in question; in fact, to make artificial fire-places of them, calculated to draw, or force, the air from the room, rarefy it and pass it upwards, this operation being assisted by the colder air pressing behind, any current descending such opening is rarefied by the heat within it, and returns. The Marquis de Chabannes to whom the credit is due of first applying practically this system of forced ventilation, into buildings; placed the mouths of his ventilating tubes at the ceiling, connecting them with one principal tunnel or tube in the centre of the building, and this alone was warmed either by the admission of steam into chambers surrounding it--by a small fire-place formed within it; or, by the flames of gas. The hot chamber thus produced, drew quickly the colder air out of the ventilating tubes, rarefied it, and a continual supply of colder air pressing from beneath it passed upwards. This tunnel was provided at the top with a cowl to prevent a downward current. To this excellent contrivance for the purposes of ven...

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