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*Environmental Control System(ECS)Design Class PresentationAIAA
Team 2Ryan FortierGreg
Costanzo9/12/2006http://www.boeing.com/commercial/cabinair/ecs.pdfhttp://www.boeing.com/commercial/cabinair/ecs.pdf
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*OutlinePneumatic SubsystemAir ConditioningHow it worksCabin
PressureEmergency Oxygen
AIAA Team
2ECShttp://www.boeing.com/commercial/cabinair/ecs.pdf
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*Pneumatic SubsystemCabin pressurizationAir conditioningIce
ProtectionCross engine startingCourtesy: Airplane Design Part IV:
Layout Design of Landing Gear and Systems (Pg. 334)AIAA Team
2ECS
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*Air ConditioningControl temperatureTakes air from the engine
bleed and cools itAir is filter through purification systems20 ft3
of air per min per passengerAvionics equipment require a direct
lineAIAA Team
2ECShttp://www.boeing.com/commercial/cabinair/ecs.pdf
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*http://www.boeing.com/commercial/cabinair/avi/1newintake.aviHow
it WorksAIAA Team 2ECSAir enters engine
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*http://www.boeing.com/commercial/cabinair/avi/5newpackanim.aviHow
it WorksAIAA Team 2ECSPasses through a catalytic ozone
converter
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*http://www.boeing.com/commercial/cabinair/avi/6newpak2statmix.aviHow
it WorksAIAA Team 2ECSEnters the air-conditioning packs
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*http://www.boeing.com/commercial/cabinair/avi/8mixmanifold.aviHow
it WorksAIAA Team 2ECSEnters the mixing manifold
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*http://www.boeing.com/commercial/cabinair/avi/10maindistribution.aviHow
it WorksAIAA Team 2ECSOutside air and re-circulated air mix
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*http://www.boeing.com/commercial/cabinair/avi/12cabinvents.aviHow
it WorksAIAA Team 2ECSAir is supplied to cabin
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*http://www.boeing.com/commercial/cabinair/avi/13exhaust.aviHow
it WorksAIAA Team 2ECSAir is exhausted from the airplane
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*Emergency OxygenIncase of a sudden drop in pressureTypes of
systemsGaseous (crew)Chemical (passengers)Liquid oxygen
(military)weight volumeC-130 has a 25 liter liquid oxygen type
systemprovides for 96 man-hours of oxygen at 25,000 feetportable
units are also available
AIAA Team
2ECShttp://www.studio2f.com/misc/images/oxygen_masks_deployed.jpg
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*http://www.carletonls.com/productsbu/aviationo2/ADV10572.pdfExampleAIAA
Team 2ECS
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*Cabin Pressure300 ft/min cabin pressure descending500 ft/min
cabin pressure ascending
Dont exceed a cabin-to-outside pressure differential of 8.60
psi.Current cabin pressure max out at 8,500 ft.
AIAA Team
2ECShttp://www.boeing.com/commercial/cabinair/ecs.pdf
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*FutureLower Cabin Pressure (~6000
ft)http://www.boeingcapital.com/p2p/techredefinesjoy.htmAIAA Team
2ECS
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*ReferencesJackson, 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.htmhttp://www.boeing.com/commercial/cabinair/ecs.pdfAIAA
Team 2ECS
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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 2ECS
