The Selection and Installation of Machinery for Small Pumping Plants (Classic Reprint) PDF Download
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Author: W. B. Gregory
Publisher: Forgotten Books
ISBN: 9781396607226
Category : Technology & Engineering
Languages : en
Pages : 46
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Book Description
Excerpt from The Selection and Installation of Machinery for Small Pumping Plants The brake horsepower (b. H. P.) is the power delivered by an engine to the belt that drives a pump, or to the pump itself in case the unit is direct connected. For steam engines it is usually about 90 per cent of the indicated horsepower and for gasoline engines about 80 per cent. The same idea is expressed also by saying the mechanical efficiency of the engine is 90 or 80 per cent. The indicated or rated horsepower (i. II. P.) of steam engines is based on the power developed in the cylinder. This can be determined in an actual case only by means Of a steam engine indicator. However, experiments made by engine builders enable them to tabulate with sufficient accuracy the rated horsepower for engines Of given size of cylinder, with a given steam pressure and a given number of revolutions. The practice of all builders is not the same in this particular. Some state that an overload of 25 per cent is allowable, while others give the maximum power the engine is capable of indicating. 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.
Author: W. B. Gregory
Publisher: Forgotten Books
ISBN: 9781396607226
Category : Technology & Engineering
Languages : en
Pages : 46
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Book Description
Excerpt from The Selection and Installation of Machinery for Small Pumping Plants The brake horsepower (b. H. P.) is the power delivered by an engine to the belt that drives a pump, or to the pump itself in case the unit is direct connected. For steam engines it is usually about 90 per cent of the indicated horsepower and for gasoline engines about 80 per cent. The same idea is expressed also by saying the mechanical efficiency of the engine is 90 or 80 per cent. The indicated or rated horsepower (i. II. P.) of steam engines is based on the power developed in the cylinder. This can be determined in an actual case only by means Of a steam engine indicator. However, experiments made by engine builders enable them to tabulate with sufficient accuracy the rated horsepower for engines Of given size of cylinder, with a given steam pressure and a given number of revolutions. The practice of all builders is not the same in this particular. Some state that an overload of 25 per cent is allowable, while others give the maximum power the engine is capable of indicating. 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.
Author: William Benjamin Gregory
Publisher:
ISBN:
Category :
Languages : en
Pages : 40
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Book Description
Author: William Benjamin Gregory
Publisher:
ISBN:
Category : Pumping machinery
Languages : en
Pages : 40
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Book Description
Author: United States. Department of Agriculture
Publisher:
ISBN:
Category : Agricultural experiment stations
Languages : en
Pages : 0
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Author: Bernard Alfred Etcheverry
Publisher: Forgotten Books
ISBN: 9780266890478
Category : Technology & Engineering
Languages : en
Pages : 36
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Book Description
Excerpt from The Selection and Cost of a Small Pumping Plant The source of water supply may be surface water, such as water occurring in rivers, lakes, canals, etc., or it may be ground water. Where surface water is available, the supply should be developed by means of a proper intake, which in the simplest cases will be formed by making the suction pipe of the pump extend into the body of water. Where ground water is available, wells are the most common means of development. N o attempt is made in this bulletin to discuss the conditions under which ground water occurs, or the extent and permanence of the supply. It is an important fact that over a long period'of years no more water can be pumped from any body of ground water than is replaced from its source of supply. The source in any given case may be seepage from natural stream channels or from canals, percola tion from irrigated areas, or percolation from direct rainfall. The' conditions under which ground water is replenished, however, are frequently complex, and the measurement of the replenishment is difficult. That present rates of pumping are approaching or exceeding the rates of replenishment in some areas of the state is indicated by the lowering of the ground water elevation from year to year. There is as much need for investigation and care in studying the water supply for pumping purposes as there-is determining the adequacy of the water supply of a canal system diverting natural stream flow. 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.
Author: John Needels Chester
Publisher: Forgotten Books
ISBN: 9780366738069
Category : Technology & Engineering
Languages : en
Pages : 72
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Excerpt from The Selection of Pumping Machinery for Water Supply: Thesis The engineer upon whom devolves the selection and operation of pumping machinery finds four distinct services for which he must provide. 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.
Author: Frederick Colyer
Publisher: Forgotten Books
ISBN: 9780282607210
Category : Technology & Engineering
Languages : en
Pages : 184
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Book Description
Excerpt from Pumps and Pumping Machinery The author does not think it necessary to enter into a history as to the first use of the ordinary pump, lift and force pumps of the usual type for domestic supply are now so well known that no notice need be taken of them. Descriptions of machinery at work, derived in most cases (except in some specially mentioned) from his own practice and experience are given. He would like it to be understood, where any data are given, especially as to the performance of machinery of any kind, that they may be taken in all cases as good average results, and not mere experiments. Dimensions are given of the leading apparatus connected with pumping machinery and plant, as well as various types of engines and boilers, to indicate to those who have not had much experience in this class of work what they should specify in stating their wants. The author hopes it may prevent in future, to some extent, the issue of the crude specifications and drawings that are too often seen, especially as they place contractors who tender for the work in an unfair position. Where so much is left to their own ideas, it necessarily follows that the tenders are very wide as to price. In the present day, when the lowest tender is usually accepted, it is necessary to have all the details of a proposed work clearly defined, especially as to the leading dimensions and way of finishing the work. 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.
Author: Arthur Maurice Greene
Publisher: Forgotten Books
ISBN: 9781528552165
Category : Technology & Engineering
Languages : en
Pages : 740
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Excerpt from Pumping Machinery a Treatise on the History, Design, Construction, and Operation of Various, Forms of Pumps The book is intended for the use of those Who have studied hydraulics, mechanics, and the strength of materials. It is intended to develop certain general principles of mechanics Which are applicable to pumping machinery as Well as to train the, student in application of certain of the theoretical portions of the studies of an engineering course. The first two chapters are devoted to the development of pumping machinery, because the author feels the need, of all engineers, of a more intimate knowledge of the great works of the early members of the profession. The pump is so closely allied With the steam engine in early times that this history traces the early ferms of that machine. The historical works mentioned in the list of text-books in the bibliography as well as the historical articles given in the same catalogue have been indispensable in the preparation of these chapters. 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.
Author: William Henry Wakeman
Publisher: Forgotten Books
ISBN: 9780282803742
Category : Technology & Engineering
Languages : en
Pages : 204
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Book Description
Excerpt from Questions and Answers on Pumps and Pumping Machinery For illustration, a given kind of pump would prove efficient and durable when raising pure water, but it might not be suitable for water containing sand and other foreign matter. If used in such service it would soon become worn out and inefficient. On the other hand, if a pump that was designed and built for these conditions had been selected and installed, the result would have been much more satisfactory. 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.
Author: Bernard Alfred Etcheverry
Publisher:
ISBN:
Category : Irrigation pumps
Languages : en
Pages : 30
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