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Gas Turbine Propulsion Systems

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Major changes in gas turbine design, especially in the design and complexity of engine control systems, have led to the need for a... Weiterlesen
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Beschreibung

Major changes in gas turbine design, especially in the design and complexity of engine control systems, have led to the need for an up to date, systems-oriented treatment of gas turbine propulsion. Pulling together all of the systems and subsystems associated with gas turbine engines in aircraft and marine applications, Gas Turbine Propulsion Systems discusses the latest developments in the field.

Chapters include aircraft engine systems functional overview, marine propulsion systems, fuel control and power management systems, engine lubrication and scavenging systems, nacelle and ancillary systems, engine certification, unique engine systems and future developments in gas turbine propulsion systems. The authors also present examples of specific engines and applications.

Written from a wholly practical perspective by two authors with long careers in the gas turbine & fuel systems industries, Gas Turbine Propulsion Systems provides an excellent resource for project and program managers in the gas turbine engine community, the aircraft OEM community, and tier 1 equipment suppliers in Europe and the United States. It also offers a useful reference for students and researchers in aerospace engineering.

Roy Langton has recently retired from his position as Vice-President, Engineering & Integrity at Parker Aerospace, where he was responsible for internal seminars & training into feedback control. He is now a technology consultant for Parker, and has also recently been appointed as an editor for the Wiley Aerospace Series.

Bernie MacIsaac is President and CEO of GasTOPS Ltd. in Ottawa, Canada.

Autorentext
Roy Langton has recently retired from his position as Vice-President, Engineering & Integrity at Parker Aerospace, where he was responsible for internal seminars & training into feedback control. He is now a technology consultant for Parker, and has also recently been appointed as an editor for the Wiley Aerospace Series.

Bernie MacIsaac is President and CEO of GasTOPS Ltd. in Ottawa, Canada.



Inhalt
About the Authors x

Preface xii

Series Preface xiv

Acknowledgements xvi

List of Acronyms xviii

1 Introduction 1

1.1 Gas Turbine Concepts 1

1.2 Gas Turbine Systems Overview 6

References 9

2 Basic Gas Turbine Operation 11

2.1 Turbojet Engine Performance 11

2.1.1 Engine Performance Characteristics 18

2.1.2 Compressor Surge Control 22

2.1.3 Variable Nozzles 28

2.2 Concluding Commentary 35

References 35

3 Gas Generator Fuel Control Systems 37

3.1 Basic Concepts of the Gas Generator Fuel Control System 37

3.2 Gas Generator Control Modes 40

3.2.1 Fuel Schedule Definition 42

3.2.2 Overall Gas Generator Control Logic 45

3.2.3 Speed Governing with Acceleration and Deceleration Limiting 46

3.2.4 Compressor Geometry Control 62

3.2.5 Turbine Gas Temperature Limiting 63

3.2.6 Overspeed Limiting 65

3.3 Fuel System Design and Implementation 65

3.3.1 A Historical Review of Fuel Control Technologies 67

3.3.2 Fuel Pumping and Metering Systems 72

3.4 The Concept of Error Budgets in Control Design 77

3.4.1 Measurement Uncertainty 79

3.4.2 Sources of Error 80

3.5 Installation, Qualification, and Certification Considerations 84

3.5.1 Fuel Handling Equipment 84

3.5.2 Full-authority Digital Engine Controls (FADEC) 86

3.6 Concluding Commentary 88

References 88

4 Thrust Engine Control and Augmentation Systems 89

4.1 Thrust Engine Concepts 89

4.2 Thrust Management and Control 92

4.3 Thrust Augmentation 95

4.3.1 Water Injection 96

4.3.2 Afterburning 97

Reference 103

5 Shaft Power Propulsion Control Systems 105

5.1 Turboprop Applications 110

5.1.1 The Single-shaft Engine 110

5.1.2 The Free Turbine Turboprop 112

5.2 Turboshaft Engine Applications 119

Reference 130

6 Engine Inlet, Exhaust, and Nacelle Systems 131

6.1 Subsonic Engine Air Inlets 131

6.1.1 Basic Principles 132

6.1.2 Turboprop Inlet Configurations 133

6.1.3 Inlet Filtration Systems 135

6.2 Supersonic Engine Air Inlets 136

6.2.1 Oblique Shockwaves 137

6.2.2 Combined Oblique/Normal Shock Pressure Recovery Systems 139

6.2.3 Supersonic Inlet Control 141

6.2.4 Overall System Development and Operation 143

6.2.5 Concorde Air Inlet Control System (AICS) Example 144

6.3 Inlet Anti-icing 150

6.3.1 Bleed-air Anti-icing Systems 151

6.3.2 Electrical Anti-icing Systems 151

6.4 Exhaust Systems 151

6.4.1 Thrust Reversing Systems 152

6.4.2 Thrust Vectoring Concepts 155

References 160

7 Lubrication Systems 161

7.1 Basic Principles 161

7.2 Lubrication System Operation 169

7.2.1 System Design Concept 170

7.2.2 System Design Considerations 174

7.2.3 System Monitoring 174

7.2.4 Ceramic Bearings 179

References 179

8 Power Extraction and Starting Systems 181

8.1 Mechanical Power Extraction 181

8.1.1 Fuel Control Systems Equipment 181

8.1.2 Hydraulic Power Extraction 183

8.1.3 Lubrication and Scavenge Pumps 184

8.1.4 Electrical Power Generation 184

8.2 Engine Starting 187

8.3 Bleed-air-powered Systems and Equipment 189

8.3.1 Bleed-air-driven Pumps 191

8.3.2 Bleed Air for Environmental Control, Pressurization and Anti-icing Systems 192

8.3.3 Fuel Tank Inerting 193

References 194

9 Marine Propulsion Systems 195

9.1 Propulsion System Designation 197

9.2 The Aero-derivative Gas Turbine Engine 198

9.3 The Marine Environment 199

9.3.1 Marine Propulsion Inlets 200

9.3.2 Marine Exhaust Systems 203

9.3.3 Marine Propellers 204

9.4 The Engine Enclosure 206

9.4.1 The Engine Support System 207

9.4.2 Enclosure Air Handling 208

9.4.3 Enclosure Protection 208

9.5 Engine Ancillary Equipment 209

9.5.1 Engine Starting System 209

9.5.2 Engine Lubrication System 211

9.5.3 Fuel Supply System 212

9.6 Marine Propulsion Control 214

9.6.1 Ship Operations 214

9.6.2 Overall Propulsion Control 217

9.6.3 Propulsion System Monitoring 219

9.6.4 Propulsion System Controller 222

9.6.5 Propulsion System Sequencer 224

...

Produktinformationen

Titel: Gas Turbine Propulsion Systems
Autor:
EAN: 9781119976141
ISBN: 978-1-119-97614-1
Digitaler Kopierschutz: Adobe-DRM
Format: E-Book (epub)
Herausgeber: Wiley
Genre: Sonstiges
Anzahl Seiten: 352
Veröffentlichung: 07.07.2011
Jahr: 2011
Untertitel: Englisch
Dateigrösse: 16.8 MB