Heat: A Manual for Technical and Industrial Students |
Other editions - View all
Common terms and phrases
absolute adiabatic ammonia amount apparatus Assume atmospheric pressure B.T.U. per pound body boiler boiling boiling-point Boyle's Law bulb burned calories calorimeter carbon cent centigrade chemical coefficient of expansion combustion compression compressor compute condenser conductance containing cooled cu.ft cubic curve cycle cylinder difference efficiency electrical entropy equal evaporation exhaust explosion Fahrenheit formula freezing ft.-lbs fuel furnace gaseous gases given H.P. hour heat energy heat of vaporization horse-power increase latent heat liquid mass mechanical energy mercury mixture moisture molecules obtained oxygen perature pipe piston pound of coal power plant Pratt Institute Prob Problem produce pyrometer radiation Rankine cycle reading refrigerating result saturated steam sensible heat shown in Fig solid specific heat sq.in square inch steam engine steam tables stroke student substance superheated superheater supply Surface Condenser taken takes place temperature thermal ohms thermometer total heat tube units usually V₁ valve weight
Popular passages
Page 324 - ... as determined from the results of the analysis of the coal, ash, and refuse. The loss due to incomplete combustion of carbon is found by first obtaining the proportion...
Page 322 - efficiency of boiler, furnace and grate " is the relation between the heat absorbed per pound of coal fired, and the calorific value of one pound of coal. The "efficiency of boiler and furnace" is the relation between the heat absorbed per pound of combustible burned, and the calorific value of one pound of combustible. This expression of efficiency furnishes a means for comparing one boiler and furnace with another, when the losses of unburned coal due to grates, cleanings, etc., are eliminated....
Page 237 - The distance from the crest of one wave to the crest of the next is called the wavelength.
Page 322 - combustible burned" is determined by subtracting from the weight of coal supplied to the boiler, the moisture in the coal, the weight of ash and unburned coal withdrawn from the furnace and ashpit, and the weight of dust, soot, and refuse, if any, withdrawn from the tubes, flues, and combustion chambers, including ash carried away in the gases, if any, determined from the analyses of coal and ash. The "combustible" used for determining the calorific value is the weight of coal less the moisture and...
Page 315 - cross-section " paper is used for work of this kind. Curves. — A succession of related points may be connected by a smooth line, thus constituting a " curve." Such curves are frequently the most convenient and the clearest way of representing a physical law, corrections for errors of apparatus, etc. Suppose, for example, that it is desired to show the relation between the stretch of a wire and the stretching loads producing it, data being as follows: Load. Increase in Length.
Page 44 - It will be seen from the above definition that the specific heat of a substance is the ratio between the amount of heat required to raise the temperature of the substance 1°, and the amount of heat required to raise the temperature of the same weight of water 1°.