. Locomotive engineering : a practical journal of railway motive power and rolling stock . ating surface, and to this endthe blower system of combined heating andventilation has proved a special conven-ience. In the building herewith illustrated,which is one of a series originally erectedfor the Grant Locomotive Works, of Chi-cago, and now occupied by the Siemens& Halske Company, of America, this sys-tem was installed by the B. F. Sturtevant LOCOMOTIVE ENGINEERING to five times as efficient as it would be ifexposed in the open air of the building. The effect of velocity in increasing therelati
. Locomotive engineering : a practical journal of railway motive power and rolling stock . ating surface, and to this endthe blower system of combined heating andventilation has proved a special conven-ience. In the building herewith illustrated,which is one of a series originally erectedfor the Grant Locomotive Works, of Chi-cago, and now occupied by the Siemens& Halske Company, of America, this sys-tem was installed by the B. F. Sturtevant LOCOMOTIVE ENGINEERING to five times as efficient as it would be ifexposed in the open air of the building. The effect of velocity in increasing therelative condensation in the heater, as wella3 the effect of the steam pressure, is veryclearly shown by the accompanying curves,plotted from results ?)btained in connec-tion with Sturtevant heaters. It is nat-ural that greater condensation should ac-company a higher steam pressure. Fur-thermore, as the volume of air increases,resulting of course from increased veloc-ity, the relative temperature increment,or increase in the temperature of the air,naturally diminishes, or as will be seen. BOILER SHOP OF THE OLD GRANT LOCOMOTIVE WORKS. lHICA& Company, of Boston, Mass., after its owndesigns. The apparatus is located upon aplatform in one corner, and adjacent tothe exhaust steam supply. Its elevationabove the floor renders the space beneathavailable, and facilitates the return ofwater to the boilers when live steam isused. The apparatus is of the standard Stur-tevant type, consisting of a steel pipeheater, a fan and a direct-connected en-gine. The heater comprises a series ofcast-iron bases into which i-inch steelpipes are screwed, and arranged for prop-er circulation of steam. Across thesepipes the air is drawn, and by means of afan is discharged into the overhead sys-tem of galvanized iron piping. The engineis of special type, bolted directly to theside of the fan, and having a commonshaft therewith. The air leaving the fan enters the pip-ing system at a velocity of about 3,000feet
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroa, bookyear1892
