An Introduction to Aircraft Thermal Management

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Detalles Bibliográficos
Clasificación:Libro Electrónico
Autor principal: Ahlers, Mark
Formato: Electrónico eBook
Idioma:Inglés
Publicado: Warrendale : SAE International, 2019.
Temas:
Aerodynamic heating.
Aerothermodynamics.
Échauffement aérodynamique.
Aérothermodynamique.
Aerodynamic heating
Aerothermodynamics
Acceso en línea:Texto completo
Tabla de Contenidos:
  • Cover
  • Table of Contents
  • Introduction
  • CHAPTER 1 Why Aircraft Thermal Management Matters
  • 1.1 Introduction
  • 1.2 Temperature Requirements
  • 1.3 Removing Heat
  • 1.4 Protection
  • 1.5 Increased Importance
  • 1.5.1 Composite Materials
  • 1.5.1.1 Advantages over Metals
  • 1.5.1.2 Disadvantages of Using Composites
  • 1.5.2 Higher Heat Loads
  • 1.5.3 More Electric Aircraft
  • 1.5.3.1 No-Bleed Systems
  • 1.5.3.2 Electric Actuators
  • 1.5.3.3 Challenges
  • References
  • CHAPTER 2 Temperature and Thermal-Related Requirements
  • 2.1 Introduct ion
  • 2.2 Outside Ambient Conditions
  • 2.2.1 Climate and Aircraft Performance
  • 2.2.1.1 Standard Day
  • 2.2.1.2 Environmental Envelope
  • 2.2.1.3 Safe Operations
  • 2.2.1.4 Performance
  • 2.2.1.5 Operational Requirements and Limits
  • 2.2.1.6 OAT and Airplane Performance
  • 2.2.1.7 MIL-HDBK-310
  • 2.2.2 Boundary Temperature Calculations
  • 2.2.2.1 Ground
  • 2.2.2.2 Sky
  • 2.2.2.3 Ram Air
  • 2.2.3 Boundary Pressure Calculations
  • 2.2.3.1 Pounds Mass versus Pounds Force
  • 2.2.3.2 Total (Ram) Pressure
  • 2.2.4 Humidity
  • 2.2.5 Solar Flux
  • 2.2.6 Wind Speed
  • 2.3 Pressurized Volume
  • 2.3.1 Passenger Cabin and Flight Deck (Thermal Comfort)
  • 2.3.1.1 Thermal Comfort Parameters
  • 2.3.1.2 Thermal Load
  • 2.3.1.3 Predicted Mean Vote
  • 2.3.1.4 Predicted Percentage Dissatisfied
  • 2.3.2 Cargo Compartments
  • 2.3.3 Equipment
  • 2.4 Unpressurized Area
  • 2.4.1 Fuel
  • 2.4.2 Hydraulics
  • 2.5 Structure
  • 2.5.1 External Bulk
  • 2.5.2 Internal
  • References
  • CHAPTER 3 Airplane-Generated Heat Sources
  • 3.1 Introduction
  • 3.2 Occupants
  • 3.2.1 Sensible Heat
  • 3.2.2 Latent Heat
  • 3.2.3 Passengers and Crew
  • 3.2.4 Live Animal Cargo
  • 3.2.5 Avionics and Electrical Equipment
  • 3.3 Flight Controls and Hydraulic Systems
  • 3.3.1 Hydraulic
  • 3.3.2 Electric
  • 3.3.3 Flight Control Thermal Impact
  • 3.4 Lights
  • 3.5 Power Feeders
  • 3.5.1 Electromagnetic Interference
  • 3.5.2 Inductive Loads
  • 3.6 Brakes
  • 3.6.1 Brake Heat Sink
  • 3.6.2 Brake Temperatures
  • 3.6.3 Brake Heating during Successive Missions
  • 3.6.4 MLG Wheel Well
  • 3.6.5 BTMS Selection at Gate Release
  • 3.6.6 Brake Fans
  • 3.6.7 Thrust Reverses
  • 3.6.8 Fuse Plugs
  • 3.7 Environmental Control System
  • 3.7.1 Air Supply
  • 3.7.2 Packs
  • 3.7.3 Fans
  • 3.7.4 Anti-icing/Deicing Systems
  • References
  • CHAPTER 4 External Heat Sources
  • 4.1 Introduction
  • 4.2 Solar Heating
  • 4.2.1 The Sun
  • 4.2.2 Incident Solar Load
  • 4.2.3 Time of Day and Surface Orientation
  • 4.2.4 Solar Absorptance and Reflectance
  • 4.2.5 Transmittance
  • 4.2.6 Modeling Terrestrial Radiation
  • 4.2.6.1 Extraterrestrial Radiation
  • 4.2.6.2 Declination Angle
  • 4.2.6.3 Solar Time
  • 4.2.6.4 Zenith Angle
  • 4.2.6.5 Altitude or Elevation Angle
  • 4.2.6.6 Air Mass Model
  • 4.2.6.7 Clear Sky Model
  • 4.3 Aerodynamic Heating
  • 4.3.1 Subsonic Flight
  • 4.3.2 Supersonic Flight
  • 4.4 Lightning
  • References

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