Excerpt from Steam Piping: Its Economical Design and Correct Layout Mr. Johnston believes, as a deduction from his own professional observation and experience, that in the majority of industrial plants the steam-piping system has received insufficient attention, and that as a result wastes of both installation investment and operating cost are prevalent. In this volume, consolidated and revised from a series of articles published in the engineering magazine in 1915, he analyzes the factors governing the ¿ow of steam in pipes, and presents a group of curves for use in solving the problems of practical installation and determining the most economical size of pipe to select for any given set of conditions. While the first chapter includes in its theoretical discussions all pressures from O to 250 pounds, two supplementary chapters take up respectively the special problems of low-pressure systems, and the enormous but too often neglected economies obtain able from the utilization of exhaust steam, and the employment of the plain reciprocating engine, with exhaust heat as a by-product, in place of much more costly equipment sometimes installed. 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.