Page 8 - Steam Turbines--Design, Applications, and Rerating by Heinz-Bloch, Murari-Singh
P. 8
Contents
Preface xiii
Acknowledgments xvii
Chapter 1. Introduction 1
1.1 Why Mechanical Drive Steam Turbines Are Applied 1
1.2 Overview of Steam Turbine Fundamentals 2
1.2.1 Steam turbine staging can vary 5
1.2.2 Modern impulse design 5
1.2.3 Single-valve vs. multivalve construction 5
1.2.4 Steam balance considerations 9
1.3 Overview of Steam Turbine Types and Controls 9
1.3.1 Straight noncondensing 14
1.3.2 Automatic extraction noncondensing 15
1.3.3 Automatic extraction condensing 15
1.3.4 Basic steam control considerations 18
1.3.5 Automatic extraction condensing controls 21
1.3.6 Geared and direct-drive types 21
1.3.7 Modular design concepts 23
Chapter 2. Turbine Casing and Major Stationary Components 29
2.1 Casing Design 29
2.2 Steam Admission Sections 33
2.3 Steam Turbine Diaphragms and Labyrinth Packing 36
Chapter 3. Bearings for Mechanical Drive Turbines 51
3.1 Journal Bearings for Industrial Turbomachinery 51
3.1.1 Fixed-geometry journal bearing stability 52
3.1.2 Tilting-pad journal bearings 56
3.1.3 Advanced tilting-pad journal bearings 61
3.1.4 Lubrication-starved tilting-pad bearings 65
3.2 Key Design Parameters 68
3.3 Thrust Bearings for Turbomachinery 69
3.4 Active Magnetic Bearings 75
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