Transactions of the Institution of Engineers and Shipbuilders in Scotland Volume 46 (Paperback)

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. 1903 Excerpt: ...though it might dry a part of it. This should be carefully taken into account in experiments in which wiredrawing calorimeters were used. On page 202 Prof. Watkinson said: "Although it has long been known that steam may be superheated by wiredrawing, it has up to the present been supposed that the maximum possible temperature of the wiredrawn steam was always less than the temperature of the steam before wiredrawing." He did not think that he could quite agree with him there. If he included in the term wiredrawing the addition of heat from without, he thought no one would consider that there was any such limit to the temperature of the superheated steam as that to which reference was made in the paper. What Prof. Watkinson said as to Fig 7, that the steam was superheated 260 degrees Fah. might be referred to in connection with what had already been said regarding the misinterpretation of observations in wiredrawing calorimeters. The steam was not superheated to 260 degrees Fah., but only a part of it. What the author was referring to was a method by which steam might be separated into two parts, and one part be superheated at the expense of the condensation of the other part. He thought it should be made clear that it was not the whole steam that was superheated. It was not a method of superheating a given quantity of steam by wiredrawing, but only a method of superheating part of it at the expense of heat taken from another part. In the second method referred to, the steam was not superheated by wiredrawing simply, but by the wiredrawing and by heat supplied to the steam from without. He did not at all mean by those remarks that there might not be the germs of something very good in the suggestions which Prof. Watkinson had made, but if Prof. A. ...