Alles über E-Books | Antworten auf Fragen rund um E-Books, Kopierschutz und Dateiformate finden Sie in unserem Info- & Hilfebereich.
Turbine Main Engines deals with the principle of operation of turbine main engines. Topics covered include practical considerations that affect turbine design and efficiency; steam turbine rotors, blades, nozzles, and diaphragms; lubricating oil systems; and gas turbines for use with nuclear reactors. Gas turbines for naval boost propulsion, merchant ship propulsion, and naval main propulsion are also considered. This book is divided into three parts and begins with an overview of the basic mode of operation of the steam turbine engine and how it converts the pressure energy of the ingoing steam into equivalent kinetic energy. The second part deals with the principle of operation of marine gas turbines and discusses the effect of pressure and temperature on turbine performance; creep of turbine components; fouling of compressors and turbines; and control systems and protective devices. The final part describes free piston-gas turbine machinery and looks at different types of free piston engine, together with turbine fouling and washing procedure. This monograph will be of interest to mechanical engineers and those involved in turbine operation and design.
Language
Place of publication
ISBN-13
978-1-4831-3899-2 (9781483138992)
Schweitzer Classification
Part I. Marine Steam Turbines Section 1.1. Introduction Principle of Operation Steam Flow The Energy Conversion Section 1.2. Practical Considerations which Affect Design The Steam Path Efficiency of Operation Design Parameters Steam Jet Speed Blade Speed Multi-Staging The Steam Condition Curve Allowable Wetness in Exhaust Stages The Perfect Turbine Factors Adversely Affecting Efficiency Section 1.3. Application of Ship Propulsion Characteristics of Steam Turbine Drives Speed Variation Power and Torque Section 1.4. Choice of Turbine Inlet Steam Condition General Considerations Thermodynamics Considerations Commercial Considerations Section 1.5. Steam Turbine Rotors Rotor Types Rotor Vibrations Astern Turbines Section 1.6. Steam Turbine Blading Blade Profiles Blade Ring Steam Leakage Blade Root Fixings Blade Shrouding Exhaust Blading Materials of Construction Section 1.7. Nozzles and Diaphragms Interstage Steam Leakage Seals Section 1.8. Bearings Bearing Loads Bearing Clearances Bearing Lubrication Thrust Bearings Section 1.9. Turbine Casings Section 1.10. Lubricating Oil Systems Section 1.11. Condensing Plant Function of the Condenser The Condensation Process Air Ejectors Section 1.12. Reduction Gearing Nested Gears Articulated Gears Dual Tandem Gears Future Gearing Design Standards of Gearing Accuracy Section 1.13. Steamship Machinery Scheme Section 1.14. Heat Balance Calculations Purpose of Heat Balance The Quantities to be balanced Practical Considerations Section 1.15. Operation of Steam Turbine Machinery The Need for a Code of Operation Preparing to Leave Port Maneuvering Under Way at Sea Questions AnswersPart II. Marine Gas Turbines Section 2.1. Introduction Section 2.2. Principle of Operation of the Gas Turbine Section 2.3. Possible Cycles Section 2.4. Open and Closed Cycles Section 2.5. Effect of Pressure Ratio and Temperature on Performance Section 2.6. Fuels and the Combustion Process Section 2.7. Combustion Chambers Section 2.8. Requirements for Marine Propulsion Section 2.9. Types of Gas Turbine suitable for Marine Propulsion Section 2.10. Compressors Section 2.11. Turbines Section 2.12. Blade Vibration Section 2.13. Rotating Stall Section 2.14. Creep of Turbine Components Section 2.15. Choice of Turbine Inlet Temperature Section 2.16. Air Cooling Section 2.17. Gas Turbines for Naval Boost Propulsion Section 2.18. Gas Turbines for Merchant Ship Propulsion Section 2.19. Gas Turbines for Naval Main Propulsion Section 2.20. Gas Turbines for Auxiliary and Emergency Use Section 2.21. Turbochargers Section 2.22. Gas Turbines for Use with Nuclear Reactors Section 2.23. Reversal Section 2.24. Effect of Ducting Pressure Losses on Performance Section 2.25. Effect of Ambient Temperature on Performance Section 2.26. Starting Section 2.27. Normal Operation Section 2.28. Maintenance Section 2.29. Troubles Section 2.30. Fouling of Compressors and Turbines Section 2.31. Control Systems and Protective Devices Section 2.32. The G.6 Propulsion Gas Turbine Section 2.33. The Ruston and Hornsby "TF" Gas Turbine Section 2.34. Existing Large Gas Turbines for Propulsion Section 2.35. Future Prospects Section 2.36. ReferencesPart III. Free Piston-Gas Turbine Machinery Section 3.1.