04-22-2023, 11:53 AM
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#1 (permalink)
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Ultimate Fail
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A/C Condenser airflow needs - full grille block
How do you guys handle the cooling needs of the air conditioner when you have a full grille block ?
How can you tell if the size of your opening is too small ?
From what I have read, when the condenser is clogged, your A/C just won't cool well.
That seems like an easy indicator, except that I have read that if you put too much stress on the A/C, it could blow the seals.
I live in Texas. A/C is mandatory for life.
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04-24-2023, 02:47 AM
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#2 (permalink)
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It's all about Diesel
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Maybe trying some NACA ducts?
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04-24-2023, 11:25 AM
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#3 (permalink)
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Master EcoModder
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'A/C'
Quote:
Originally Posted by Cd
How do you guys handle the cooling needs of the air conditioner when you have a full grille block ?
How can you tell if the size of your opening is too small ?
From what I have read, when the condenser is clogged, your A/C just won't cool well.
That seems like an easy indicator, except that I have read that if you put too much stress on the A/C, it could blow the seals.
I live in Texas. A/C is mandatory for life.
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1) air flow to the coil would be a requirement. Walter Korff, of Lockheed Aircraft Corporation provided inlet and ducting geometry parameters for us in 1963. It's in my photo-albums somewhere.
2) a non-aspirated, heat-conductive 'panel', in which the 'coil' is thermally-bonded to the inside, as part of the belly,could serve the same function, with zero drag penalty ( ISUZU 'Glider' technology ).
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04-24-2023, 12:22 PM
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#4 (permalink)
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Aero Wannabe
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Quote:
Originally Posted by Cd
I live in Texas. A/C is mandatory for life.
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The short answer is open up your grill and look for aero gains elsewhere.
I find A/C to be a pretty large hit to mpg. I would not do anything to make the A/C system work harder.
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The power needed to push an object through a fluid increases as the cube of the velocity. Mechanical friction increases as the square, so increasing speed requires progressively more power.
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04-24-2023, 01:10 PM
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#5 (permalink)
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Master EcoModder
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Quote:
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The short answer is open up your grill and look for aero gains elsewhere.
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I wonder if the metamaterial to radiate into the darkenss of space will be applied as a vinyl film?
Skin radiators might make a comeback.
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04-24-2023, 03:04 PM
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#6 (permalink)
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04-24-2023, 04:21 PM
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#7 (permalink)
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Master EcoModder
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Curiously, AmateurAerodynamics chose the same vehicles as you. 
[Bookmarked.]
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04-24-2023, 06:04 PM
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#8 (permalink)
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i turn the ac on with max heat in the winter because its so rainy and humid here. if you dont, youll fog up inside. i had full grill block and no issues. then again, i was trying to provide heat in the winter, versus cooling in the summer
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04-29-2023, 01:03 AM
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#9 (permalink)
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aero guerrilla
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Quote:
Originally Posted by Cd
How do you guys handle the cooling needs of the air conditioner when you have a full grille block ?
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In my previous P307 I had powerlock motors to open the grille block.
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[Old] Piwoslaw's Peugeot 307sw modding thread
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04-29-2023, 03:07 AM
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#10 (permalink)
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It's all about Diesel
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That would be a good setup, yet finding some way to set a safety temperature to make it open automatically to prevent overheating is desirable.
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