Download or read book Cyclopedia of Engineering, Vol. 6 of 7 written by Louis Derr and published by . This book was released on 2016-07-15 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Cyclopedia of Engineering, Vol. 6 of 7: A General Reference Work on Steam Boilers, Pumps, Engines, and Turbines The gases composing air are in the latter class; and air itself, therefore, for all practical purposes, may be looked upon as a perfect gas. In fact, the behavior of air is found in practice to conform so closely with the laws of perfect gases that the discrepancies may be ignored in ordinary calculations such as those involved in the present treatment of the subject. Table I, 'from Richards' Compressed Air, lists the weight of air per cubic foot at various temperatures Fahrenheit; also the volume of one pound of air at the same temperatures. The weight of a cubic foot of dry air at any atmospheric pressure and at any temperature Fahrenheit, may be found by dividing the constant 39 819 by the absolute temperature (temperature Fahrenheit The volume of one pound of dry air at atmospheric pres sure and any temperature, is found by dividing the absolute tempera ture by the constant Thus. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.