Pump System Analysis And Sizing by Jacques Chaurette, ISBN-13: 978-0968914908

Pump System Analysis And Sizing by Jacques Chaurette, ISBN-13: 978-0968914908

[PDF eBook eTextbook]

• 110 pages
• Publisher: Fluide Design Inc. (March 2, 2002)
• Author(s): Jacques Chaurette
• ISBN-10: 096891490X
• ISBN-13: 978-0968914908

The purpose of this book is to describe how pressure can be determined anywhere within a pump system. The inlet and outlet of a pump are two locations where pressure is of special interest. The difference in pressure head (the term pressure head refers to the energy associated with pressure divided by the weight of fluid displaced) between these two points is known as the Total Head. A system equation will be developed based on fundamental principles from which the Total Head of the pump can be calculated, as well as the pressure head anywhere within the system. These principles can be applied to very complex systems.

Friction loss due to fluid flow in pipes is the most difficult component of Total head to calculate. The methods used to calculate friction loss for different types of fluids such as water and viscous fluids of the Newtonian type and wood fiber suspensions (or stock) will be explained.

The fluids considered in this book belong to the categories of viscous and non-viscous Newtonian fluids. Wood fiber suspensions are a special type of slurry. There is an excellent treatment on this subject by G.G. Duffy in reference 2. For the reader’s benefit, a condensed version is provided. Slurries, which are an important class of fluids, are not considered. I recommend reference 7, which provides a complete treatment of the subject. However, all the principles for Total Head determination described in this book apply to slurry fluid systems. The only exception is the methods used to calculate pipe friction head.

Centrifugal pumps are by far the most common type of pump used in industrial processes. This type of pump is the focus of the book. The challenge in pump sizing lies in determining the Total Head of the system, not the particular pump model, or the materials required for the application. The pump manufacturers are generally more than willing to help with specific recommendations. Information on models, materials, seals, etc., is available from pump manufacturer catalogs. Often when approaching a new subject, our lack of familiarity makes it difficult to formulate meaningful questions. Chapter 1 is a brief introduction to the components of Total Head. I hope it proves as useful to you as it did to me.

This book is intended for people who wish to know how pump systems work and specifically how centrifugal pumps are sized in detail and mostly intended for college or engineering students and professionals. The basic equations for calculating pump total head, N.P.S.H., pressure head anywhere in the system and others are derived from basic principles. This is a good overall review of the subject and a good reference manual. If you have forgotten how to size a pump this manual will tell you just about everything you need to know.

About the Author

Jacques Chaurette is a mechanical engineer, graduated Bachelor of Science at Laval University, 1978. He has worked for 20 years in the pulp and paper industry in the paper machine manufacturing sector and for major consultant firms. Since 1998, he has his own consulting company specializing in pump system trouble-shooting and design as well as training.

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