Mechanical Draft: A Practical Treatise (Classic Reprint)

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Excerpt from Mechanical Draft: A Practical Treatise The subject of mechanical draft has been discussed at greater or less length in the technical press and before various engineering societies, but in all cases such discussion has been distinctly limited. Here, for the first time, the attempt is made to give the treatment that its importance demands. Although its introduction is evidence of a somewhat radical departure in certain features of boiler practice, yet extended and recent experience clearly indicates the permanence of this departure. Hereafter, the progressive engineer will not adopt the chimney as the sole means of draft production, but will first carefully consider the respective advantages of the chimney and the fan, for the claims of the latter to superiority cannot be disregarded. Manifestly, the individual who in the present day is to decide between the two methods, requires a clear presentation of their respective merits, such as is attempted in this work. Its object is two-fold: First, to instruct by a lucid discussion of the entire subject, with such supplementary information as may be necessary to show the superiority of mechanical draft. Second, to show the special adaptability of the Sturtevant fans for this purpose, and to indicate in some degree the extent to which they have already been applied. With the desire to give the reader all the information that may be required for a full understanding of the subject, without necessitating reference to other works, the chapters on Water, Steam and Fuels have been incorporated. In the chapters on Efficiency of Fuels, and of Boilers, the principles which pertain to the efficiency, convenience and adaptability of mechanical draft are presented in their abstract relation to the subject in general. In so far as such statements are general in their character their treatment is that of a text-book. But wherever they particularly concern the utility of mechanical draft and the employment of fans for its production, they are substantiated by quotations from eminent authorities, and in all cases references are introduced. An impartial character is thus given to all statements, while the actual facts are doubly emphasized. 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.