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Gas Turbine Blade Cooling.
Gas turbines play an extremely important role in fulfilling a variety of power needs and are mainly used for power generation and propulsion applications. The performance and efficiency of gas turbine engines are to a large extent dependent on turbine rotor inlet temperatures: typically, the hotter...
| Clasificación: | Libro Electrónico |
|---|---|
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
SAE International.
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| Temas: | |
| Acceso en línea: | Texto completo |
MARC
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| 245 | 0 | 0 | |a Gas Turbine Blade Cooling. |
| 260 | |b SAE International. | ||
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| 505 | 0 | |a Cover -- Table of contents -- Overview -- Introduction -- CHAPTER 1 High Temperature Turbine Design Considerations -- Material Properties -- Manufacturing Processes -- Cooling Techniques -- Cooling Flow -- Cooling Air Temperature -- Mixing Losses -- Aerodynamic Losses -- Mechanical Design -- Mechanical and Thermal Life -- Metallurgical Stability -- Coatings -- Coating Interactions -- Summary -- Nomenclature -- Acknowledgments -- References -- CHAPTER 2 Summary of NASA Aerodynamic and Heat Transfer Studies in Turbine Vanes and Blades -- Aerodynamic Studies -- Cascade Tests | |
| 505 | 8 | |a Coolant Hole Angle Orientation -- Single and Multirow Coolant Ejection -- Full-Film-Cooled Vane -- Varying Primary-to-Coolant Temperature Ratio -- Effect of Ceramic Coating on Vane Efficiency -- Rotating Stage Tests -- Description of Turbines -- Test Results -- Cooling Studies -- Flat-Plate Heat Transfer Investigations -- Cascade and Engine Investigations -- Summary of Major Results -- Current Programs -- Film Cooling -- Endwall Cooling -- Impingement Cooling -- Thermal Barrier Coatings -- References -- Symbols -- Subscripts -- CHAPTER 3 Cooling Modern Aero Engine Turbine Blades and Vanes | |
| 505 | 8 | |a Part I by Arthur Hare -- Extent of Application of Cooling -- Purposes of Cooling -- Degree of Cooling -- Some Effects on Engine Functioning -- Some Effects on Design -- Some Effects on Engine Development -- Effect on Manufacturing Cost -- Summary -- Part II by H.H. Malley -- Turbine Entry Temperature -- Blade Cooling Level -- Material Creep Strength -- Cooling Air Feed System -- Combustion-Chamber Exit Temperature Traverse -- Nozzle Guide Vane Cooling -- Early Standard of Vane -- Vane with "Jet Cooled" Leading Edge -- Vane with "Tube Cooling" -- Turbine Blade Cooling -- "Triple Pass" Cooling | |
| 505 | 8 | |a "Double Pass" Cooling -- "Single Pass" Cooling -- Turbine Blade Problems -- Thermal Fatigue -- Oxidation and Corrosion -- Creep -- Future Trends -- CHAPTER 4 An Investigation of Convective Cooling of Gas Turbine Blades Using Intermittent Cooling Air -- Introduction -- Results of Prior Investigations -- Experimental Results -- Analysis and Correlation -- Conclusions -- Summary -- References -- CHAPTER 5 The Prospects of Liquid Cooling for Turbines -- History of Liquid Cooling -- Possibilities for Turbine Liquid Cooling -- A Critique of Demonstrated Liquid-Cooled Turbines | |
| 505 | 8 | |a Prospects for Turbine Liquid Cooling -- A Case Study: The Cooled Radial Turbine -- Cycle Impact of Turbine Cooling -- Turbine Aerodynamic Design -- Turbine Cooling -- Summary -- References -- Appendix A Cycle Performance Data for Small Gas Turbine Components -- Appendix B Typical Turbine Design Calculations -- Turbine Aerodynamic Design -- Turbine Cooling Design -- Nomenclature -- Subscripts -- CHAPTER 6 Feasibility Demonstration of a Small Fluid-Cooled Turbine at 2300°F -- Aero-Thermodynamic Performance -- Turbine -- Correction Factor Analysis -- Turbine Analysis -- Heat Transfer -- Discussion | |
| 504 | |a Includes bibliographical references. | ||
| 520 | |a Gas turbines play an extremely important role in fulfilling a variety of power needs and are mainly used for power generation and propulsion applications. The performance and efficiency of gas turbine engines are to a large extent dependent on turbine rotor inlet temperatures: typically, the hotter the better. In gas turbines, the combustion temperature and the fuel efficiency are limited by the heat transfer properties of the turbine blades. However, in pushing the limits of hot gas temperatures while preventing the melting of blade components in high-pressure turbines, the use of effective cooling technologies is critical. Increasing the turbine inlet temperature also increases heat transferred to the turbine blade, and it is possible that the operating temperature could reach far above permissible metal temperature. In such cases, insufficient cooling of turbine blades results in excessive thermal stress on the blades causing premature blade failure. This may bring hazards to the engine's safe operation. Gas Turbine Blade Cooling, edited by Dr. Chaitanya D. Ghodke, offers 10 handpicked SAE International's technical papers, which identify key aspects of turbine blade cooling and help readers understand how this process can improve the performance of turbine hardware. | ||
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