About the Book
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1912 Excerpt: ...Geological Survey, 45, 158; Gov-ernment purchase of coal by, 131. V Vacuum flask, 109. Value of coal, basis for determining comparative, 126, 128; British thermal value, 9; calorific value, 9; factors affect-ing, 126. Volatile matter, amount in certain coals, 49; com-position of, 49; determination of, 82; heating value of, 50. Voltage, desirable in calorimeter work, 100; reduction of, by shunt, 101. W Washing coal, improvement.of by, 122-125; labor-atory equipment for, 123; results of, 124. Water, combined in clay, 4; combined in coals, 48; density of, 98; effect of, on available heating power, 22; equivalent of calorimeter, 105; measuring of, in calorimeter work, 97; resistance of, 102; seal, effects of, on gas samples, 156; surround-ing calorimeter bomb, 97; total in coals, 48; vapor, effect of, on gas analysis, 143; vapor, latent heat of, 14; vapor, specific heat of, 24. Weathered coal, VII. sulphur in, 7. Weighing out samples, 79. Wire, fuse used in calorimeter deter-mination, 95; high resistance, 101. Wood, composition of, 157. AIR COMPRESSION AND TRANSMISSION BY H. J. THORKELSON ASSOCIATE PROFESSOR STEAM AND OAS ENGINEERING. UNIVERSITY OF WISCONSIN Copyright, 1913, By The Mcgraw-hill Book Company, Inc. PREFACE This text is designed to present in logical order the fundamental principles dealing with the subject of the compression of air, and its transmission through ducts or pipes, together with such examples as will serve to illustrate their application. It is hoped that the presentation will make clear the methods to be followed in calculations dealing with air at various pressures, and that students and engineers will be better able to appreciate the advantages and limitations of the various systems of securing the pressures desired, and of using ai...
