Stationary EngineeringNational equipment Company, 1907 - 1005 pages |
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Common terms and phrases
alternating current armature automatic bolted brick cable cast iron cent check valve chimney circuit coal coil combustion condensation connected construction Corliss Corliss valve crank cylinder diagram diameter direct direct current discharge draft drum dynamo eccentric electrical elevator evaporation exhaust steam Fahrenheit feed water feet fire flange flow flue front fuel furnace fusible plug gases Globe Valve governor grate head heater heating surface horizontal horse power injector joint lever license lines of force live steam machine magnetic motion motor necessary operation pipe placed plate plunger pole pounds pulley pump rear regulated riveted safety valve screw Sectional View shaft shell shown in Fig side slide valve speed square inch steam boiler steam pressure Steam Trap Steam Turbine steel stop stroke tank temperature tion tubular boiler turbine valve gear vertical water leg Water Tube Boiler weight wire
Popular passages
Page 256 - To find the pressure in pounds per square inch of a column of water, multiply the height of the column in feet by .434. Approximately, we say that every foot elevation is equal to % Ib. pressure per square inch ; this allows for ordinary friction. To find the diameter of a pump cylinder...
Page 902 - Multiply one-sixth of the lowest tensile strength found stamped on any plate in the cylindrical shell by the thickness — expressed in inches or parts of an inch — of the thinnest plate in the same cylindrical shell, and divide by the radius or half diameter — also expressed in inches — and the...
Page 433 - See that the boiler is thoroughly heated before the trial to its usual working temperature. If the boiler is new and of a form provided with a brick setting, it should be in regular use at least a week before the trial, so as to dry and heat the walls. If it has been laid off and become cold, it should be worked before the trial until the walls are well heated. VII.
Page 433 - Watermeters, as a rule, should only be used as a check on other measurements. For accurate work, the water should be weighed or measured in a tank. 3. Thermometers and pyrometers for taking temperatures of air, steam, feed-water, waste gases, etc.
Page 436 - The ash pits should be thoroughly cleaned at once after starting. Before the end of the test the fires should be burned low, just as before the start, and the fires cleaned in such a manner as to leave the same amount of fire, and in the same condition, on the grates as at the start.
Page 116 - The calorie is the amount of heat necessary to raise the temperature of one gram of water one degree centigrade.
Page 441 - Prefer to the proportions of carbon, hydrogen, oxygen, and sulphur, respectively, as determined by the ultimate analysis. It is desirable that a proximate analysis should be made, thereby determining the relative proportions of volatile matter and fixed carbon. These proportions furnish an indication of the leading characteristics of the fuel, and serve to fix the class to which it belongs.
Page 432 - I. Determine at the outset the specific object of the proposed trial, whether it be to ascertain the capacity of the boiler, its efficiency as a steam generator, its efficiency and its defects under usual working conditions, the economy of some particular kind of fuel, or the effect of changes of design, proportion, or operation; and prepare for the trial accordingly (see note, p.
Page 441 - Calorific Tests and Analysis of Coal.— The quality of the fuel should be determined either by heat test or by analysis, or by both. The rational method of determining the total heat of combustion is to burn the sample of coal in an atmosphere of oxygen gas, the coal to be sampled as directed in Article XV. of this Code.
Page 437 - The boiler being thoroughly heated by a preliminary run, the fires are to be burned low and well cleaned. Note the amount of coal left on the grate as nearly as it can be estimated ; note the pressure of steam and the water level, and note this time as the time of starting the test.