The Working Engineer's Practical Guide to the Management of the Steam Engine (Classic Reprint) - Tapa dura

Sinopsis

Excerpt from The Working Engineer's Practical Guide to the Management of the Steam Engine

The section of the work devoted to the question of the Expansion of Steam, with the examples adduced, shows how this is to be effected in the most available manner with the best practical results. The Author knows of nothing else hitherto published which imparts the information on this important subject he has endeavoured to convey. Yet this is one of the real questions of the the day - the main direction in which further improvements of the Steam Engine are to be effected. Economy in the working of the Steam Engine is known to be in the application of high pressures. The higher - within the limits of safety - we can get, the more economical. To obtain the whole benefit of high steam, we must apply the principles of Expansion, beginning with the highest pressure of steam we have, and parting with it at the lowest possible pressure. How this principle is to be applied with practical advantage, the Author has here endeavoured to indicate.

The Tables appended to the work will also, it is believed, be found to be of service to the practical Engineer, aiding him in his calculations for various matters connected with the Steam Engine and its working. In those Tables, and indeed, throughout the work, decimals have been, to a great extent, dispensed with, and also fractional parts, with the exception of those expressed by the common signs i, 5, - the calculations when so reduced and expressed, being near enough for all practical purposes, and more intelligible to a large portion of the class for whom the work is designed. In fact, throughout the treatise, the aim of the Author has been to Oxpress himself in simple phraseology; and though his production may not possess the charm of literary embellishment, he trusts that it may be found to possess at least the merit of perspicuity in the treatment of a dry subject, and to be of practical utility. In short, he trusts that it will be found to be what he has endeavoured to make it, a practical guide TO the working engineer.

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