Basic Concepts in Turbomachinery

Basic Concepts in Turbomachinery Download free books at... Fascinating lighting offers an ininite spectrum of possibilities: Innovative technologies and new markets provide both opportun

Basic Concepts in

Turbomachinery

Download free books at

2

Grant I ngram

Basic Concept s in Tur bom achiner y

Download free eBooks at bookboon.com

3

Basic Concept s in Tur bom achiner y

© 2009 Grant I ngram & Vent us Publishing ApS

I SBN 978- 87- 7681- 435- 9

Download free eBooks at bookboon.com

Basic Concepts in Turbomachinery

4

Cont ent s

1 Introduction

1.1 How this book will help you

1.2 Things you should already know

1.3 What is a Turbomachine?

1.4 A Simple Turbine

1.5 The Cascade View

1.6 The Meridional View

1.7 Assumptions used in the book

1.8 Problems

2 Relative and Absolute Motion

2.1 1D Motion

2.2 2D Motion

2.3 Velocity Triangles in Turbomachinery

2.4 Velocity Components

2.5 Problems

3 Simple Analysis of Wind Turbines

3.1 Aerofoil Operation and Testing

3.2 Wind Turbine Design

3.3 Turbine Power Control

Contents

16

17 17 17 18 19 23 23 24

25

26 27 28 30 33

35

38 41 44

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Basic Concepts in Turbomachinery

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3.4 Further Reading

3.5 Problems

4 Different Turbomachines and Their Operation

4.1 Axial Flow Machines

4.2 Radial and Centrifugal Flow Machines

4.3 Radial Impellers

4.4 Centrifugal Impellers

4.5 Hydraulic Turbines

4.6 Common Design Choices

4.7 The Turbomachine and System

4.8 Problems

5 Application of The Equations of Fluid Motion

5.1 Conservation of Mass

5.1.1 Application to Radial Machines

5.2 Conservation of Momentum

5.2.1 The Difference Between a Single Aerofoil and a Cascade of Blades

5.3 Conservation of Energy and Rothalpy

5.3.1 Rothalpy

5.3.2 Rothalpy in Stators and Rotors

5.4 Problems

6 Effi ciency and Reaction

6.1 EfÞ ciency

Contents

44 45

46

47 47 49 52 54 57 59 60

61

61 63 64 68 69 71 71 73

74

74

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