X

Download Aircraft Anti-Icing Systems PowerPoint Presentation


Login   OR  Register
X

Share page



  Preview

               
Home / Science & Technology / Science & Technology Presentations / Aircraft Anti-Icing Systems PowerPoint Presentation

Aircraft Anti-Icing Systems PowerPoint Presentation

worldwideweb By : worldwideweb

On : Dec 09, 2014

In : Science & Technology

Embed :
539
views

0
downloads
Login / Signup - with account for


  • → Make favorite
  • → Flag as inappropriate
  • → Download Presentation
  • → Share Presentation
  • Slide 1 - Aircraft Anti-Icing Systems Group 4 Leslie Mehl Annie Parsons
  • Slide 2 - Negative Effects of Ice Buildup Destroys smooth flow of air over wing, leading to severe decrease in lift and increase in drag forces Can change pitching moment As angle of attack is increased to compensate for decreased lift, more accumulation can occur on lower wing surface Causes damage to external equipment such as antennae and can clog inlets, and cause impact damage to fuselage and engines Considered a cumulative hazard because as ice builds up on the wing, it increasingly changes the flight characteristics http://www.aopa.org/asf/publications/sa11.pdf#search=%22anti-icing%20systems%20aircraft%22
  • Slide 3 - Types of Ice Rime: “has a rough milky white appearance and generally follows the surface closely” Clear/Glaze: “sometimes clear and smooth but usually contain some air pockets that result in a lumpy translucent appearance, denser, harder and more difficult to break than rime ice” Mixed http://virtualskies.arc.nasa.gov/weather/tutorial/images/32clearice.gif&imgrefurl=http://virtualskies.arc.nasa.gov/weather/tutorial/tutorial4.html&h=235&w=280&sz=29&hl=en&start=6&tbnid=NrYdps_943cEmM:&tbnh=96&tbnw=114
  • Slide 4 - Ice Detection Electronic ice detection common, but can give false readings GM is developing a mass based ice detection system where ice builds up on external probe After mass of probe has increased due to additional ice, anti-icing systems are alerted and turned on This increases fuel efficiency and system life as de-icing systems are only turned on as required by conditions
  • Slide 5 - Types of Ice Removal Anti-Icing Preemptive, turned on before the flight enters icing conditions Includes: thermal heat, prop heat, pitot heat, fuel vent heat, windshield heat, and fluid surface de-icers De-Icing Reactive, used after there has been significant ice build up Includes surface de-ice equipment such as boots, weeping wing systems, and heated wings
  • Slide 6 - Propeller Anti-Icers Ice usually appears on propeller before it forms on the wing Can be treated with chemicals from slinger rings on the prop hub Graphite electric resistance heaters on leading edges of blades can also be used http://www.aopa.org/asf/publications/sa11.pdf#search=%22anti-icing%20systems%20aircraft%22
  • Slide 7 - Windshield Anti-Icers Liquids used include: ethylene glycol, propylene glycol, Grade B Isopropyl alcohol, urea, sodium acetate, potassium acetate, sodium formate, and chloride salts Chemicals are often bad for the environment Usually uses resistance heat to clear windshield or chemical sprays while on the ground http://www.aopa.org/asf/publications/sa11.pdf#search=%22anti-icing%20systems%20aircraft%22
  • Slide 8 - Thermal Heat Air Heated Bleed air from engine heats inlet cowls to keep ice from forming Bleed air can be ducted to wings to heat wing surface as well Ice can also build up within engine, so shutoff valves need to be incorporated in design Usually used to protect leading edge slat, and engine inlet cowls Resistance heater Used to prevent ice from forming on pitot tubes, stall vanes, temperature probes, and drain masts Airplane Design, Book 4, Roskam
  • Slide 9 - Boots Inflatable rubber strips that run along the leading edge of wing and tail surfaces When inflated, they expand knocking ice off of wing surface After ice has been removed, suction is applied to boots, returning them to the original shape for normal flight Usually used on smaller planes http://www.aopa.org/asf/publications/sa11.pdf#search=%22anti-icing%20systems%20aircraft%22
  • Slide 10 - Weeping Wing Fluid is pumped through mesh screen on leading edge of wing and tail Chemical is distributed over wing surface, melting ice Can also be used on propeller blades and windshields http://www.aopa.org/asf/publications/sa11.pdf#search=%22anti-icing%20systems%20aircraft%22
  • Slide 11 - Electro-impulse Deicing Electromagnetic coil under the skin induces strong eddy currents on surface Delivers mechanical impulses to the surface on which ice has formed Strong opposing forces formed between coil and skin Resulting acceleration sheds ice from the surface Can shed ice as thin as 0.05” http://www.idiny.com/eidi.html
  • Slide 12 - Typical Anti-Icing C-130: Engine bleed air used for anti-icing wing and empennage leading edges, radome, and engine inlet air ducts. Electrical heat provides anti-icing for propellers, windshield, and pitot tubes. 777: Engine bleed air used to heat engine cowl inlets. If leak is detected in Anti-Ice duct, affected engine Anti-Ice valves close. Wing Anti-Ice System provides bleed air to three leading edge slats on each wing. Wing Anti-Ice is only available in flight.
  • Slide 13 - References “Airplane Design, Pt 4.” Roskam http://www.aopa.org/asf/publications/sa11.pdf#search=%22anti-icing%20systems%20aircraft%22 http://www.newpiper.com/promo/PIIPS/images/PIIPSPropSlingerRing.jpg http://www.fas.org/man/dod-101/sys/ac/c-130.htm http://www.airs-icing.org/AIRS_II/AIAAReno2006/AIAA-2006-206-739.pdf#search=%22transport%20ice%20%22in%20flight%22%22 www.p2pays.org/ref/07/06047.pdf Ice Pictures http://www.idiny.com/eidi.html
ECG Heart Beat Free PowerPoint Template

ECG Heart Beat

Views : 1646

Back to School Free PowerPoint Template

Back to School

Views : 506

Yoga Meditation Free PowerPoint Template

Yoga Meditation

Views : 754

Morning Running Free PowerPoint Template

Morning Running

Views : 771

AI Free PowerPoint Template

AI

Views : 660

Wedding Cake Free PowerPoint Template

Wedding Cake

Views : 805

Dentist Free PowerPoint Template

Dentist

Views : 376

Butterfly Free PowerPoint Template

Butterfly

Views : 642

Stop Aids Free PowerPoint Template

Stop Aids

Views : 527

Drone Free PowerPoint Template

Drone

Views : 4100

Global Warming Pollution Free PowerPoint Template

Global Warming Pollution

Views : 873

Autumn Free PowerPoint Template

Autumn

Views : 563

Global Warming Free PowerPoint Template

Global Warming

Views : 550

Agriculture Free PowerPoint Template

Agriculture

Views : 904

Running Track Free PowerPoint Template

Running Track

Views : 426

Burger Free PowerPoint Template

Burger

Views : 558

Photography Free PowerPoint Template

Photography

Views : 448

Heart Free PowerPoint Template

Heart

Views : 484

Vegetables Free PowerPoint Template

Vegetables

Views : 506

Gerbera Free PowerPoint Template

Gerbera

Views : 336

Description : Aircraft Anti-Icing Systems Presentation : Download Aircraft Anti-Icing Systems ppt presentation and make your presenation attractive

Tags : Aircraft Anti-Icing Systems

Shortcode : Get Shareable link