flybywiresim/aircraft

APU BLEED air not reducing cabin temperatures on the ground

Opened this issue · 4 comments

rahulrathnakumar commented

Aircraft Version

Development

Build info

{
    "built": "2024-05-20T04:39:50+00:00",
    "ref": "refs/heads/master",
    "sha": "5e177cc4f18b78d3f0e057f791203b5550d10e35",
    "actor": "2hwk",
    "event_name": "manual",
    "pretty_release_name": "master:5e177cc4",
    "version": "a32nx-v0.12.0-dev.5e177cc"
}

Describe the bug

Cabin/Cockpit temperatures don't drop when APU BLEED is ON.

Expected behavior

When the APU BLEED is ON, the cabin temperatures in the COND ECAM display should decrease, depending on the cabin temperature selection in the overhead panel.

Steps to reproduce

  1. APU BLEED ON
  2. Check COND page on the ECAM.

References (optional)

Microsoft Flight Simulator Screenshot 2024 05 25 - 19 01 07 96

Additional info (optional)

No response

Discord Username (optional)

beheh commented

Are your cabin doors closed?

rahulrathnakumar commented

The cabin doors were open at the time for boarding. When I tested with the doors closed, it worked very well.
However, I think that the APU BLEED should do a better job cooling the cabin even with a door open, as it defaults the plane to high pack flow rate when APU BLEED is on.

mjuhe commented

I've just tried this. At an ambient temperature of around 30 degC with the cabin doors closed the cabin cools down, with or without passengers. With door open and no passengers the temperature in the cabin also drops. The only situation where the air conditioning struggles to cool the cabin down is when you have the doors open and a full load of passengers on board. We can adjust this but I wonder if we have a reference that we can use to fine tune it.

tracernz commented

Did not notice before that the user has the US units option turned on. 78 F is about 25 C… actually quite reasonable with doors open when outside is 32 C?

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