05_21-30
21-30
21-30
Fichier Détails
| Cartes-fiches | 18 |
|---|---|
| Langue | Deutsch |
| Catégorie | Mathématiques |
| Niveau | École primaire |
| Crée / Actualisé | 19.09.2016 / 19.09.2016 |
| Lien de web |
https://card2brain.ch/box/052130
|
| Intégrer |
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The ventilation includes:
a) avionics + batteries b) lavatories and galleys
FSC
FSC (Fan speed Controller)
Function of the ventilation
two electric fans continuously to force the circulation of cooling air è Controlled by the FSC (Fan speed Controller)
Skin exchange inlet and outlet bypass valves:
Skin exchange inlet and outlet bypass valves: enable air to circuit between the avionics bay and the space under the cargo compartment floor.
Air conditioning inlet valve
- opens to enable the air conditioning circuit to supply fresh air to the avionics bay
Skin exchange isolation valve
the valve connects or isolates the skin heat exchanger
AEVC
Avionics equipment ventilation controller (AEVC): AEVC controls the operation of all fans and valves in the avionics ventilation system
Open circuit: on ground threshold (on ground and not TO thrust)
Open circuit: on ground threshold (on ground and not TO thrust)
Öffnet ab +12 Grad und schliesst unter +9 Grad
Closed circuit: inflight threshold Öffnet ab
Closed circuit: inflight threshold Öffnet ab +35 Grad und schliesst unter +32 Grad
Blower or Extract Fault
when pb set to OVRD the system is in closed circuit configuration and adds from the air conditioning system
BLOWER to OVRD:
the blower fan is stopped and the extract fan continuous to run
Extract to OVRD: both fan continuous to run
Extract to OVRD: both fan continuous to run
Controller Failure:
same as smoke, but the skin exchange isolation valve stays open => the inlet and skin exchange stays in the position as they stand by the failure è Extract fan keeps running
Smoke configuration
the air conditioning system supplies cooling air which is then exhausted overboard => BLOWER fan stops
Battery ventilation:
Battery ventilation: a venture in the skin of the aircraft draws air from the space around the batteries and cents it overboard. The resulting airflow ventilations the batteries.
Lavatory and Galley
an extraction fan draws ambient cabin air through the lavatories and galley and exhausts it near the outflow valve => Extraction fan runs continually when electric power is available
OVRD pb
system goes to the closed circuit configuration
FAULT: wann kommt es?
A) blowing pressure below b) overheats c) computer power supply fails d) smoke
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