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this post was submitted on 20 Oct 2024
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A/C does not, and cannot, function without insulation.
There is no insulation when the doors and windows are constantly open. You're just burning energy for no impact.
You're not going to get the whole interior down to 75° but having cool dehumidified air blowing on you makes a huge difference.
It doesn't get to cool, for the exact same reason you don't intake from outside to begin with.
Cool can't happen without gradual lowering of the input temperature by recirculating it. It takes many cycles to have any impact at all.
You can definitely use outside air for the AC.
cooling can absolutely happen with air from outside, it just takes a much more powerful ac unit. insulation only exists to make it efficient.
You're not trying to cool the vehicle down, you just want cool air blowing on you.
I know that. I literally said that there are many times where the doors are closed for decent stretchs of time and last time I opened my car doors I don’t remember 100% of the cold air rushing out but maybe I forgetting something.
Spend more time thinking and less time trying to justify why essential workers shouldn’t have basic comforts.
Because it's bullshit. It's a lie. The car is not running A/C with the doors closed for any meaningful length of time, and you don't maintain temperatures without A/C actively running.
There is a small relief provided by blowing the cooled dehumidified air over the warm sweating body using the dash vents. This would give the person a chance for their body to better perform the evaporative cooling process even if the cabin can't stay at a constant lower temperature. I'd argue doing something to help with the comfort of the carrier is better than a vehicle without AC - and understandable it's worse for the environment because of the waste heat generated in the process.
You get the same exact outcome with airflow period, without removing all of the range of the vehicle.
As someone who owned a car without AC for several summers, I'd say you're incorrect on that assumption. In fact, this is something you can try in the summer time with any car with AC. After a hot day in the sun, go drive around without the AC on and just the fans on and windows down. How do you feel? Then kick on the AC (leaving the driver's window down, stimulating running a route delivering to mailboxes.). You're telling me there is NO difference in feel without cool air blowing at your body?
I'm not putting the calculations of how many more dinosaurs will be used to in this, I'm merely focusing on the carrier being a little more comfortable during their drive.
Why aren’t you a mail carrier? You seem qualified and experienced to do it.