A Theoretical and Experimental Investigation of Single Phase Flow Through a Small Centrifugal Pump in Three Quadrants of Operation PDF Download
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Author: Lee Charles Cadwallader
Publisher:
ISBN:
Category :
Languages : en
Pages : 131
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Author: Lee Charles Cadwallader
Publisher:
ISBN:
Category :
Languages : en
Pages : 131
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Book Description
Author:
Publisher:
ISBN:
Category : Mechanics, Applied
Languages : en
Pages : 932
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Author:
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 582
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Author:
Publisher:
ISBN:
Category : Mechanical engineering
Languages : en
Pages : 908
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Author: N. Pedersen
Publisher:
ISBN: 9788774752394
Category :
Languages : en
Pages :
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Author: Raymond David Zegley
Publisher:
ISBN:
Category : Centrifugal pumps
Languages : en
Pages : 216
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Book Description
A pump system was built and instrumented on which tests were performed yielding single- and two-phase actual pump characteristics for first-quadrant operation (forward flow and forward rotation) of two different centrifugal impellers mounted in a simple two-dimensional volute. Theoretical single- and two-phase pump characteristics were determined from the impeller geometry, the Euler equation, and the use of the two-phase flow function. The head-loss ratio, the loss of head in two-phase flow dividied by the loss of head in single-phase flow, was then plotted versus void fraction. The results were compared to an earlier theory proposed which predicted the head-loss ratio to be primarily a function of void fraction. These results indicate that the head-loss ratio is a function of flow coefficient as well as void fraction. Flow-visualization studies were also conducted and revealed that flow regime inside the blade passages can be different from either the inlet or outlet flow regimes, and greatly affects pump performance. Further experimentation, on a more efficient system employing higher-specific-speed impellers, is recommended to study more closely the effect of flow coefficient, flow regime and void fraction upon two-phase pump performance.
Author: Christopher E. Brennen
Publisher: Cambridge University Press
ISBN: 1139497278
Category : Technology & Engineering
Languages : en
Pages : 287
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Book Description
Hydrodynamics of Pumps is a reference for pump experts and a textbook for advanced students. It examines the fluid dynamics of liquid turbomachines, particularly pumps, focusing on special problems and design issues associated with the flow of liquid through a rotating machine. There are two characteristics of a liquid that lead to problems and cause a significantly different set of concerns than those in gas turbines. These are the potential for cavitation and the high density of liquids, which enhances the possibility of damaging, unsteady flows and forces. The book begins with an introduction to the subject, including cavitation, unsteady flows and turbomachinery, basic pump design and performance principles. Chapter topics include flow features, cavitation parameters and inception, bubble dynamics, cavitation effects on pump performance, and unsteady flows and vibration in pumps - discussed in the three final chapters. The book is richly illustrated and includes many practical examples.
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1416
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Author: Alexey Joakim Stepanoff
Publisher:
ISBN:
Category : Centrifugal pumps
Languages : en
Pages : 468
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Author: Raghavan S. Beltur
Publisher:
ISBN:
Category : Pressure
Languages : en
Pages : 406
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