Caption: Booklet - Engineering Experiment Station and Industry (1909)
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ma 20 Breckenridge—Engineering Experiment Station Breckenridge—Engineering Experiment Station 21 In the Mechanical Laboratory.— (Fig. 18 and 19.) 1. A 210 H.P. Heine water-tube boiler especially arranged for testing Illinois coals. This boiler is a duplicate of the boilers used by the United States government in testing coals from various parts o'f the country. A Green chain grate stoker is installed under this necessary for boiler tests is available, including recording and optical pyrometers, and standard and recording apparatus for continuous gas' analysis. Facilities are now available in the department of physics for calibrating all thermometers and pyrometers used in work of this character. FIG. 2 1 . — Y O R K JCE AND REFRIGERATING MACHINE boiler, and draft is furnished by a Sturtevant induced draft fan, drawing the gases through an economizer. The chain grate under the boiler may easily be removed and a plain furnace for handfiring substituted. A complete equipment of auxiliary apparatus \ - 2. An independently-fired Foster superheater capable of superheating the steam from a 150 H.P. boiler to 300 deg. F. above its temperature, at 120 pounds gauge. 3. Several residence heating boilers, for hot-air, steam and hot water service. These boilers will serve to compare the values of such various coals as are offered in the Illinois market for domestic f purposes. Fig. 20. 4. A 10-ton York refrigerating plant for the production of cold or for specific tests. With this plant there are 17 cans for ice making, each holding 100 pounds. The possibility of subjecting various building stones or other material to alternate freezing and thawing is worthy of consideration. The effect of fifty winters might thus be known in a single month. The heat conductivity of all kinds of walls used in buildings could be tested. Fig. 21. 5. A liquid air plant with a capacity of about three quarts an hour. It consists of a Norwalk four-stage compressor, compressing up to 3,000 pounds, together with a Hampson liquefier with facilities for temperature determinations. 6. An Ingersoll-Sergeant two-stage air compressor driven by compound steam cylinders. The steam cylinders are 12 in. and 22 in. in diameter with a 12 in. stroke, and air cylinders are 12% in.
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