Gas Turbine Propulsion Systems

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

“Highly recommended.  Upper-division undergraduates and above.” (Choice, 1 March 2012)

• About the Authors xPreface xiiSeries Preface xivAcknowledgements xviList of Acronyms xviii1 Introduction 11.1 Gas Turbine Concepts 11.2 Gas Turbine Systems Overview 62 Basic Gas Turbine Operation 112.1 Turbojet Engine Performance 112.2 Concluding Commentary 353 Gas Generator Fuel Control Systems 373.1 Basic Concepts of the Gas Generator Fuel Control System 373.2 Gas Generator Control Modes 403.3 Fuel System Design and Implementation 653.4 The Concept of Error Budgets in Control Design 773.5 Installation, Qualification, and Certification Considerations 843.6 Concluding Commentary 884 Thrust Engine Control and Augmentation Systems 894.1 Thrust Engine Concepts 894.2 Thrust Management and Control 924.3 Thrust Augmentation 955 Shaft Power Propulsion Control Systems 1055.1 Turboprop Applications 1105.2 Turboshaft Engine Applications 1196 Engine Inlet, Exhaust, and Nacelle Systems 1316.1 Subsonic Engine Air Inlets 1316.2 Supersonic Engine Air Inlets 1366.3 Inlet Anti-icing 1506.4 Exhaust Systems 1517 Lubrication Systems 1617.1 Basic Principles 1617.2 Lubrication System Operation 1698 Power Extraction and Starting Systems 1818.1 Mechanical Power Extraction 1818.2 Engine Starting 1878.3 Bleed-air-powered Systems and Equipment 1899 Marine Propulsion Systems 1959.1 Propulsion System Designation 1979.2 The Aero-derivative Gas Turbine Engine 1989.3 The Marine Environment 1999.4 The Engine Enclosure 2069.5 Engine Ancillary Equipment 2099.6 Marine Propulsion Control 2149.7 Concluding Commentary 22410 Prognostics and Health Monitoring Systems 22710.1 Basic Concepts in Engine Operational Support Systems 22910.2 The Role of Design in Engine Maintenance 23410.3 Prognostics and Health Monitoring (PHM) 24311 New and Future Gas Turbine Propulsion System Technologies 25711.1 Thermal Efficiency 25711.2 Improvements in Propulsive Efficiency 26011.3 Other Engine Technology Initiatives 268Appendix A Compressor Stage Performance 279A.1 The Origin of Compressor Stage Characteristics 279A.2 Energy Transfer from Rotor to Air 281Appendix B Estimation of Compressor Maps 285B.1 Design Point Analysis 288B.2 Stage Stacking Analysis 291Appendix C Thermodynamic Modeling of Gas Turbines 295C.1 Linear Small-perturbation Modeling 295C.2 Full-range Model: Extended Linear Approach 298C.3 Component-based Thermodynamic Models 299Appendix D Introduction to Classical Feedback Control 307D.1 Closing the Loop 307D.2 Block Diagrams and Transfer Functions 308D.3 The Concept of Stability 310D.4 Frequency Response 311D.5 Laplace Transforms 315Reference 321Index 323