Principles Of Drying Lumber At Atmospheric Pressure And Humidity Diagram

Author : Harry D. Tiemann
Publisher : Forgotten Books
ISBN 13 : 9780428479794
Total Pages : 28 pages
Book Rating : 4.4/5 (797 download)

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Download or read book Principles of Drying Lumber at Atmospheric Pressure and Humidity Diagram (Classic Reprint) written by Harry D. Tiemann and published by Forgotten Books. This book was released on 2018-01-07 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Principles of Drying Lumber at Atmospheric Pressure and Humidity Diagram The rate of evaporation may best be controlled by controlling the amount of vapor present in the air (relative humidity); it Should not be controlled by reducing the air circulation, since a large circulation is needed at all times to supply the necessary heat. The humidity Should be graded from 100 per cent at the charging end to whatever humidity corresponds with the desired degree of dryness at the discharging end. The kiln should be so designed that the proper degree can be maintained at its every section. This may 3 be accomplished either by suitable ventilation Or by condensers at the sides. Any well-made kiln which will fulfill the conditions required as to circulation and humidity control should work satisfactorily; but each case must be studied by itself and the various factors modified to suit the particular conditions of the problem. In every new case the lumber should be constantly watched and, if checking begins, the humidity should be increased until it stops. It is not reducing the circulation, but adding the'necessary moisture to the air, that should be depended on to prevent checking. For this purpose it is well to have steam jets in the kiln. 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.