Heating and ventilating buildings : a manual for heating engineers and architects . air in the model of the building were made visi-ble by mingling the inflowing air stream with smoke, whichrendered all the changes undergone by it in its passage appar-ent to the eye. The results of the experiments are shown graphically in thesix sketches, Figs. 17 to 22. In each case the distribution ofthe fresh air is indicated by the curved lines of shading. Astudy of these sketches is very suggestive, as it indicates thebest results for small rooms when the inlet is on the side nearthe top, and the outlet i
Heating and ventilating buildings : a manual for heating engineers and architects . air in the model of the building were made visi-ble by mingling the inflowing air stream with smoke, whichrendered all the changes undergone by it in its passage appar-ent to the eye. The results of the experiments are shown graphically in thesix sketches, Figs. 17 to 22. In each case the distribution ofthe fresh air is indicated by the curved lines of shading. Astudy of these sketches is very suggestive, as it indicates thebest results for small rooms when the inlet is on the side nearthe top, and the outlet is in the bottom and near the centre of PRINCIPLES OF VENTILATION. 57 the room. The tendency of the entering air to form air-currentsor draughts, which in some instances tend to pass out withoutperfect diffusion, is well shown. This tendency is less as thevelocity of the entering air is reduced, and we probably getnearly perfect diffusion in every case where the outlet is wellbelow that of the inlet, provided the velocity of the enteringair is small—less than 4 feet per Fig. 17.—Air Introduced at Bottom, Discharged at Top.
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1910
