The Theory and Performance of Axial-flow Fans PDF Download
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Author: Curt Keller
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 170
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Author: Curt Keller
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 170
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Book Description
Author: C. Keller
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author: Curt KELLER
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: R. A. Wallis
Publisher: Wiley-Interscience
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 464
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Book Description
Covers the theory, design, analysis, testing, and research of axial flow fans. Contains up-to-date data on recent developments in the field. Interrelates fan and duct design techniques. Discusses commercial and product development test procedures. Covers future experimental research objectives. Includes a reference section on F-series of airfoils.
Author: R. A. Wallis
Publisher: Academic Press
ISBN: 1483274225
Category : Technology & Engineering
Languages : en
Pages : 381
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Book Description
Axial Flow Fans: Design and Practice focuses on the design of axial flow fans and the practices involved in their applications. The manuscript first offers information on the fluid mechanics of ducted fans, boundary layer and skin friction relations, and aerofoil data for blade design. Discussions focus on flow deflection in cascade of aerofoils, pitching moment, lift, surface roughness in turbulent boundary layers, turbulent boundary layers in pressure gradients, laminar skin friction, viscosity and boundary layers, and similarity and non-dimensional numbers. The text then ponders on vortex flows in ducting and fan, ducts, and introduction to fan design methods. The book takes a look at the momentum and blade element considerations on free vortex flow of rotor and rotor losses. Topics include momentum considerations, profile drag, tip clearance losses, optimum conditions in terms of the flow and swirl coefficients, pressure relations and velocity vectors, and thrust and torque gradients. Tail fairing design and associated losses, overall efficiencies, torque, thrust, and power, and the design of fan unit with arbitrary vortex flow are also discussed. The publication is a dependable source of information for engineers and readers interested in the design of axial flow fans and practices involved in their operation.
Author: Charles Herbert Innes
Publisher:
ISBN:
Category : Fans (Machinery)
Languages : en
Pages : 286
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Author: William H. Bowen
Publisher:
ISBN:
Category : Electronic dissertations
Languages : en
Pages : 104
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Author: J. E. Hesselgreaves
Publisher:
ISBN:
Category :
Languages : en
Pages : 18
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Author: Charles H. Innes
Publisher:
ISBN: 9781332054657
Category : Technology & Engineering
Languages : en
Pages : 320
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Excerpt from The Fan: Including the Theory and Practice of Centrifugal and Axial Fans In the following pages I give a theory of the fan which differs considerably from anything that I have seen in print, and which may therefore meet with some criticism. That this equation cannot be that of all fans is obvious when we remember that in many fans the manometric efficiency increases at first as the orifice increases from zero, while this equation states that it decreases; nor can it be maintained that the equation applies to fans whose manometric efficiency is greatest at zero orifice, for if the curve of manometric efficiency be drawn with this as ordinate and orifices as abscissic, it will be found that the tangent at the point where the curve cuts the vertical axis is horizontal; and that this is not the case may be seen from fig. 44, which gives curves for eleven fans differing widely in construction. Having already studied the centrifugal pump, it occurred to me about ten years ago that its theory might be applied to that of the fan; and except that the fan does not actually lift air, as the pump lifts water, but acts like a centrifugal pump that pumps against the resistance of horizontal piping only, I consider that the same theory may be applied to both. In Chapter XII. I have endeavoured to show that my theory agrees with the results of experiment, as far as these may be trusted. The following pages commence with the theory of the centrifugal fan following which are experiments with and descriptions of this type; and in Chapter XIV. is given a description of Prof. Rateau's high-pressure fans, in whose design it may be mentioned the variation of the density of the air must be taken into account. 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: Carlos C. Wood
Publisher:
ISBN:
Category : Electronic dissertations
Languages : en
Pages : 76
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