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02 AIR SYSTEMS 1 V I R T U A L N E X T G E N E R A T I O N BOEING 737 NEXT GENERATION Course overview V I R T U A L – Airplane General – Air Systems – Warning Systems, Communications, Ice & Rain Protection – Electrical – Engines, APU, Fuel System – Hydraulics, Flight Controls, Landing Gear, Brakes – Flight Instruments & Displays – Automatic Flight – Flight Management, Navigation – Normal Operations BOEING 737 NEXT GENERATION AIR SYSTEMS Topics V I R T U A L Bleed air system – Overview – Controls & Indicators – Schematic & components – Normal operations – Isolation valve – Wing body overheat Air conditioning system – Overview – Controls & Indicators – Equipment cooling – Air distribution – Temperature control – Non-normal conditions Pressurization System – System components – Controls & Indicators – Cabin pressure control – Pressurization outflow – Auto mode operation – Normal operations – Non-normal conditions BOEING 737 NEXT GENERATION AIR SYSTEMS Bleed air system Overview Feladata: Összegyüjteni és továbbítani a bleed air-t azon rendszerek részére, melyek hasznosítják. Bleed air források: - Engines - APU - External air cart Bleed air-alapú rendszerek: - Air conditioning & pressurization (légkondícionálás és nyomásszabályozás) - Wing & engine thermal anti-ice (szárny és hajtómü jegesedésgátló rendszer) - Engine starting (hajtómü indítás) - Hydraulic reservoirs pressurization (hidraulikus tartályok nyomsásszabályozása) - Water tank pressurization (víztartály nyomásszabályozása) V I R T U A L BOEING 737 NEXT GENERATION AIR SYSTEMS Bleed air system Controls & Indicators (fwd overhead panel) AIR COND. & BLEED AIR CONTROLS PANEL DUAL BLEED light ISOLATION VALVE switch WING-BODY OVHT light ENG BLEED switch APU BLEED switch DUCT PRESS indicator OHVT TEST switch BLEED TRIP OFF light TRIP RESET switch V I R T U A L BOEING 737 NEXT GENERATION AIR SYSTEMS Bleed air system V I R T U A L

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Page 1: 02 AIR SYSTEMS - MAL V Hungarian Airlines Virtualvirtualairlines.hu/737NG_Videok/737NG_02_AIR_SYSTEMS.pdf02 AIR SYSTEMS 1 V I R T U A L N E X T G E N E R A T I O N BOEING 737 NEXT

02 AIR SYSTEMS

1

V I R T U A L

N E X T G E N E R A T I O N

BOEING 737 NEXT GENERATION

Course overview

V I R T U A L

– Airplane General

– Air Systems

– Warning Systems, Communications, Ice & Rain Protection

– Electrical

– Engines, APU, Fuel System

– Hydraulics, Flight Controls, Landing Gear, Brakes

– Flight Instruments & Displays

– Automatic Flight

– Flight Management, Navigation

– Normal Operations

BOEING 737 NEXT GENERATION

AIR SYSTEMS

Topics

V I R T U A L

Bleed air system– Overview– Controls & Indicators– Schematic & components– Normal operations– Isolation valve– Wing body overheat

Air conditioning system– Overview– Controls & Indicators– Equipment cooling– Air distribution– Temperature control– Non-normal conditions

Pressurization System– System components– Controls & Indicators– Cabin pressure control– Pressurization outflow– Auto mode operation– Normal operations– Non-normal conditions

BOEING 737 NEXT GENERATION

AIR SYSTEMS

Bleed air systemOverviewFeladata: Összegyüjteni és továbbítani a bleed air-t azon rendszerek részére, melyekhasznosítják.

Bleed air források:- Engines- APU- External air cart

Bleed air-alapú rendszerek:- Air conditioning & pressurization (légkondícionálás és nyomásszabályozás)- Wing & engine thermal anti-ice (szárny és hajtómü jegesedésgátló rendszer)- Engine starting (hajtómü indítás)- Hydraulic reservoirs pressurization (hidraulikus tartályok nyomsásszabályozása)- Water tank pressurization (víztartály nyomásszabályozása)

V I R T U A L

BOEING 737 NEXT GENERATION

AIR SYSTEMS

Bleed air systemControls & Indicators(fwd overhead panel)

AIR COND. & BLEEDAIR CONTROLS PANEL

DUAL BLEED lightISOLATION VALVE switchWING-BODY OVHT lightENG BLEED switchAPU BLEED switchDUCT PRESS indicatorOHVT TEST switchBLEED TRIP OFF lightTRIP RESET switch

V I R T U A L

BOEING 737 NEXT GENERATION

AIR SYSTEMS

Bleed air system

V I R T U A L

Page 2: 02 AIR SYSTEMS - MAL V Hungarian Airlines Virtualvirtualairlines.hu/737NG_Videok/737NG_02_AIR_SYSTEMS.pdf02 AIR SYSTEMS 1 V I R T U A L N E X T G E N E R A T I O N BOEING 737 NEXT

02 AIR SYSTEMS

2

BOEING 737 NEXT GENERATION

AIR SYSTEMS

Bleed air systemNormal Procedures- Two-pack APU ground operations- External air cart connection- After engine start- No-engine bleed takeoff & landing

V I R T U A L

BOEING 737 NEXT GENERATION

AIR SYSTEMS

Bleed air systemNormal ProceduresTwo-pack APU ground operations

APU BLEED ... ONLEFT PACK ... AUTOISOLATION VALVE ... OPENRIGHT PACK ... AUTO

V I R T U A L

BOEING 737 NEXT GENERATION

AIR SYSTEMS

Bleed air systemNormal ProceduresExternal air cart connection

BATTERY ... ON

RECIRC FAN ... AUTOISOLATION VALVE ... OPENAPU BLEED ... OFFPACKS ... AUTO

V I R T U A L

BOEING 737 NEXT GENERATION

AIR SYSTEMS

Bleed air systemNormal ProceduresAfter engine start

PACKS ... AUTOAPU BLEED ... OFFISOLATION VALVE ... AUTO

V I R T U A L

BOEING 737 NEXT GENERATION

AIR SYSTEMS

Bleed air systemNormal ProceduresNo-engine bleed takeoff & landing

Before takeoff / during descentRIGHT PACK ... AUTOISOLATION VALVE ... CLOSEDLEFT PACK ... AUTOLEFT ENGINE BLEED ... OFFAPU BLEED ... ONRIGHT ENGINE BLEED ... OFF

V I R T U A L

BOEING 737 NEXT GENERATION

AIR SYSTEMS

Bleed air systemWing-Body Overheat

Kiváltó körülmény:Szivárgás a bleed air duct rendszerbenSzenzorokon keresztül jut el azinformáció az air cond. and bleed aircontrol panel-en találhatóWING-BODY OVERHEATannounciator lámpákhoz.

V I R T U A L

Page 3: 02 AIR SYSTEMS - MAL V Hungarian Airlines Virtualvirtualairlines.hu/737NG_Videok/737NG_02_AIR_SYSTEMS.pdf02 AIR SYSTEMS 1 V I R T U A L N E X T G E N E R A T I O N BOEING 737 NEXT

02 AIR SYSTEMS

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BOEING 737 NEXT GENERATION

AIR SYSTEMS

Air conditioning systemOverview

Levegõ kondicionálását végzi air conditioning packeken keresztül, melyekbõl a levegõ a fedélzetenvalamint a nyomásszabályozórendszer által kerül felhasználásra.

A levegõforrások azonosak a bleed air forrásokkal (engines, apu, external air cart).

Air conditioning pack

- Ram air system- Heat exchangers- Air cycle machine- Water separator- Mixing chamber

V I R T U A L

BOEING 737 NEXT GENERATION

AIR SYSTEMS

Air conditioning systemControls & indicators

(fwd overhead panel)

Air temperature source selectorDUCT OVERHEAT lightCabin temperature selectorsRAM DOOR FULL OPEN lightAir conditioning pack switchAir mix valve indicatorAir temperature indicatorRecirculation fan switchPACK TRIP OFF lightTRIP RESET switch

V I R T U A L

BOEING 737 NEXT GENERATION

AIR SYSTEMS

Air conditioning systemControls & indicatorsEquipment cooling

(fwd overhead panel)

Equipment cooling supply switchEquipment cooling supply off lightEquipment cooling exhaust switchEquipment cooling exhaust off light

V I R T U A L

BOEING 737 NEXT GENERATION

AIR SYSTEMS

Air conditioning systemEquipment cooling

V I R T U A L

E&E Bay

Circuit breaker panels

Cockpit panels

Overboard exhaust valve

OPEN if A/C on GND or diff press low inflight

Forward cargo bay

BOEING 737 NEXT GENERATION

AIR SYSTEMS

Air conditioning systemAir distribution

V I R T U A L

BOEING 737 NEXT GENERATION

AIR SYSTEMS

Air conditioning systemTemperature control

V I R T U A L

Page 4: 02 AIR SYSTEMS - MAL V Hungarian Airlines Virtualvirtualairlines.hu/737NG_Videok/737NG_02_AIR_SYSTEMS.pdf02 AIR SYSTEMS 1 V I R T U A L N E X T G E N E R A T I O N BOEING 737 NEXT

02 AIR SYSTEMS

4

BOEING 737 NEXT GENERATION

AIR SYSTEMS

Air conditioning systemNon-normal conditionsDuct overheat

– Air mix valves move to full cold– Set cooler temperature– Push trip reset switch

Amennyiben a duct hõmérséklet gyorsan elkezd nõni, vagy az air mix valve FULL HOT állásba vált, az adott hõmérsékletszabályzó egység üzemképtelen.

Teendõk:

← A kapcsolódó temperature selector MANUAL üzemmódba állítása

V I R T U A L

BOEING 737 NEXT GENERATION

AIR SYSTEMS

Air conditioning systemNon-normal conditionsPack trip off

– Air mix valves move to full cold– Pack valve closes– Select higher temp on TEMP SELECTOR– Press TRIP RESET switch

V I R T U A L

BOEING 737 NEXT GENERATION

AIR SYSTEMS

Pressurization systemSystem components

V I R T U A L

2 digital cabin press. Controllers

Outflow valve

2 positive press. safety relief valves

Negative press. safety relief valve

Overboard exhaust valve

BOEING 737 NEXT GENERATION

AIR SYSTEMS

Pressurization systemControls & IndicatorsCabin altitude panel

(fwd overhead panel)

CAB Alt, DIFF Press indicatorCabin rate of climb indicator ALT HORN Cutout

V I R T U A L

BOEING 737 NEXT GENERATION

AIR SYSTEMS

Pressurization systemControls & Indicators

(fwd overhead panel)

AUTO FAIL light

OFF SCHED DESC light

FLT ALT indicator

Flight altitude selector

LAND ALT indicator

Landing altitude selector

MANUAL light

ALTN light

Outflow valve pos indicator

Outflow valve switch

Pressurization mode selector

CAB/FLT ALT placard

V I R T U A L

BOEING 737 NEXT GENERATION

AIR SYSTEMS

Pressurization systemCabin pressure control

Üzemmódok

- AUTO (Automatic)Automatikus nyomásszabá-lyozás; normál üzemeltetés.

- ALTN (Alternate)Automatikus nyomásszabá-lyozás; alternatív rendszer.

- MAN (Manual)Manuális vezérlés egyenáramúmotor segítségével.

V I R T U A L

Page 5: 02 AIR SYSTEMS - MAL V Hungarian Airlines Virtualvirtualairlines.hu/737NG_Videok/737NG_02_AIR_SYSTEMS.pdf02 AIR SYSTEMS 1 V I R T U A L N E X T G E N E R A T I O N BOEING 737 NEXT

02 AIR SYSTEMS

5

BOEING 737 NEXT GENERATION

AIR SYSTEMS

Pressurization systemOutflow

V I R T U A L

BOEING 737 NEXT GENERATION

AIR SYSTEMS

Pressurization systemAuto mode operation

V I R T U A L

BOEING 737 NEXT GENERATION

AIR SYSTEMS

Pressurization systemNormal operations

Preflight1. Set FLT ALT to desired cruise altitude2. Set LAND ALT to destination airport

elevation MSL

3. Verify PRESS MODE SEL in AUTO

Post-flightNo action required by flight crew

V I R T U A L

BOEING 737 NEXT GENERATION

AIR SYSTEMS

Pressurization systemNon-normal conditions

– Off schedule descent– Diversion to an alternate airport– Single controller failure– Dual controller failure– Cabin altitude higher than limits

Off schedule descent (OFF SCHED DESC light illuminates)Pressure controller begins cabin altitude descent to 300 feet below departure airport elevation. Climbing will revert the system to normal operations.

Diversion to an alternate airportThe new airport’s field elevation must be set in the LAND ALT selector for the pressurization system to properly control cabin altitude descent.

V I R T U A L

BOEING 737 NEXT GENERATION

AIR SYSTEMS

Pressurization systemNon-normal conditionsSingle controller failure

Set PRESS MODE SEL to ALTN

V I R T U A L

BOEING 737 NEXT GENERATION

AIR SYSTEMS

Pressurization systemNon-normal conditionsDual controller failure

Set Press Mode Controlto MANUAL

Determine cabin altitudefor present level.

Toggle outflow valveswitch to reach desiredcabin altitude.

V I R T U A L

Page 6: 02 AIR SYSTEMS - MAL V Hungarian Airlines Virtualvirtualairlines.hu/737NG_Videok/737NG_02_AIR_SYSTEMS.pdf02 AIR SYSTEMS 1 V I R T U A L N E X T G E N E R A T I O N BOEING 737 NEXT

02 AIR SYSTEMS

6

BOEING 737 NEXT GENERATION

AIR SYSTEMS

Pressurization systemNon-normal conditionsCabin altitude higher than limits

V I R T U A L

BOEING 737 NEXT GENERATIONV I R T U A L

Köszönöm a figyelmet!

Copyright 2005 © Malev Virtual Training Division. All rights reserved.

Elérhetõségek:

Internet: http://www.malev.hu/virtualE-mail: [email protected]

Elõadó: Hegedüs Zoltán


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