1 environmental control system (ecs) design class presentation aiaa team 2 ryan fortier greg...
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Environmental Control System(ECS)
Design Class PresentationAIAA Team 2Ryan Fortier
Greg Costanzo9/12/2006
http://www.boeing.com/commercial/cabinair/ecs.pdfhttp://www.boeing.com/commercial/cabinair/ecs.pdf
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Outline
• Pneumatic Subsystem
• Air Conditioning
• How it works
• Cabin Pressure
• Emergency Oxygen
AIAA Team 2 ECS
http://www.boeing.com/commercial/cabinair/ecs.pdf
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Pneumatic Subsystem
• Cabin pressurization
• Air conditioning
• Ice Protection
• Cross engine starting
Courtesy: Airplane Design Part IV: Layout Design of Landing Gear and Systems (Pg. 334)
AIAA Team 2 ECS
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Air Conditioning
• Control temperature• Takes air from the engine
bleed and cools it• Air is filter through
purification systems• 20 ft3 of air per min per
passenger• Avionics equipment
require a direct line
AIAA Team 2 ECS
http://www.boeing.com/commercial/cabinair/ecs.pdf
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5http://www.boeing.com/commercial/cabinair/avi/1newintake.avi
How it Works
AIAA Team 2 ECS
Air enters engine
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6http://www.boeing.com/commercial/cabinair/avi/5newpackanim.avi
How it Works
AIAA Team 2 ECS
Passes through a catalytic ozone converter
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7http://www.boeing.com/commercial/cabinair/avi/6newpak2statmix.avi
How it Works
AIAA Team 2 ECS
Enters the air-conditioning packs
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8http://www.boeing.com/commercial/cabinair/avi/8mixmanifold.avi
How it Works
AIAA Team 2 ECS
Enters the mixing manifold
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9http://www.boeing.com/commercial/cabinair/avi/10maindistribution.avi
How it Works
AIAA Team 2 ECS
Outside air and re-circulated air mix
![Page 10: 1 Environmental Control System (ECS) Design Class Presentation AIAA Team 2 Ryan Fortier Greg Costanzo 9/12/2006 http:](https://reader035.vdocuments.us/reader035/viewer/2022081603/56649dbd5503460f94aafca2/html5/thumbnails/10.jpg)
10http://www.boeing.com/commercial/cabinair/avi/12cabinvents.avi
How it Works
AIAA Team 2 ECS
Air is supplied to cabin
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11http://www.boeing.com/commercial/cabinair/avi/13exhaust.avi
How it Works
AIAA Team 2 ECS
Air is exhausted from the airplane
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Emergency Oxygen
• Incase of a sudden drop in pressure• Types of systems
– Gaseous (crew)– Chemical (passengers)– Liquid oxygen (military)
• weight • volume
• C-130 has a 25 liter liquid oxygen type system– provides for 96 man-hours of oxygen at 25,000 feet– portable units are also available
AIAA Team 2 ECS
http://www.studio2f.com/misc/images/oxygen_masks_deployed.jpg
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13http://www.carletonls.com/productsbu/aviationo2/ADV10572.pdf
ExampleAIAA Team 2 ECS
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Cabin Pressure
• 300 ft/min cabin pressure descending
• 500 ft/min cabin pressure ascending• Don’t exceed a
cabin-to-outside pressure differential of 8.60 psi.
• Current cabin pressure max out at 8,500 ft.
AIAA Team 2 ECS
http://www.boeing.com/commercial/cabinair/ecs.pdf
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Future
• Lower Cabin Pressure (~6000 ft)
http://www.boeingcapital.com/p2p/techredefinesjoy.htm
AIAA Team 2 ECS
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References
• Jackson, Scott. “Systems Engineering for Commercial Aircraft.” Ashgate Publishing Limited. 1997.
• Roskam, Dr. Jan. “Airplane Design Part IV: Layout Design of Landing Gear and Systems.” Roskam Aviation and Engineering Corporation. 1986.
• http://www.globalsecurity.org/military/systems/aircraft/c-130-car.htm
• http://www.boeing.com/commercial/cabinair/ecs.pdf
AIAA Team 2 ECS
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Questions?
• For more detailed information:
“Fundamentals of Aircraft Environmental Control.” by Alvin Ebeling.
Constrain of aircraft design is for the airflow to travel lateral not longitudinally? Why?
AIAA Team 2 ECS