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Homemade A/C, requesting thinkers.

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Old 06-19-2007, 04:14 AM
  #31  
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Default Re: Homemade A/C, requesting thinkers.

u can also take out one of the rear window and jam that little AC right there
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Old 06-19-2007, 08:22 AM
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Default Re: Homemade A/C, requesting thinkers.

Ok, got another idea. This one is even better. Cut a huge hole in the floorboard, in that hole goes a wheel/tire which touches the road. Said wheel and tire will run an array of alternators which will run your array of peltiers and fans.

Next?
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Old 06-19-2007, 06:59 PM
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Default Re: Homemade A/C, requesting thinkers.

Originally Posted by stenseltizm
Exactly, so theoretically steve could run a bottle of co2, no2, or basically any compressed gas that he could run through his core. The compressed gas looses its extra heat energy gained by compression while it sits in the tank before he even bolts it into his car. then he could just run it through the expansion valve and stock core just like a stock system does. but then vent that to the atmosphere. no need for a condenser or heat exchanger or pump. you need all that to recompress the gas, then loose the gained heat, so the system isn't expendable and doesnt need refilled.

I have no idea how efficient it would be, or how long one bottle would last. but it would cool some air for some amount of time, it would just be half of the a/c system. Though I have no experience with that ----, so one bottle could only last 5 seconds, or it could last your 2 hr drive. I have no clue.
In English, this is what I'm thinking. If I hid the inlet/outlet hoses under the carpet and behind the plastics, the bottle would be easy as ---- to remove and install whenever. I was just wondering how well it would work for the effort.


Originally Posted by rexsk8er
why dont you just hook up the regular ac system,

Because I have a backwards firewall, and finding the correct lines is further than the nearest junkyard.
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Old 06-19-2007, 07:04 PM
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Default Re: Homemade A/C, requesting thinkers.

just quit being a queer about AC and relize you aint gonna get it. if your worried about being cool, just get one of those clip fans that plug into your cig lighter and that be that.

Honestly. I think it would be way more work and BS than what would really be the end result. You paint that ***** yet!
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Old 06-19-2007, 10:17 PM
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Default Re: Homemade A/C, requesting thinkers.

Originally Posted by Stealthmode
In English, this is what I'm thinking. If I hid the inlet/outlet hoses under the carpet and behind the plastics, the bottle would be easy as ---- to remove and install whenever. I was just wondering how well it would work for the effort.



Because I have a backwards firewall, and finding the correct lines is further than the nearest junkyard.
get some solid straight line and bend/flair it, negro. hvac supply shops should have it.
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Old 06-19-2007, 10:24 PM
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Default Re: Homemade A/C, requesting thinkers.

Originally Posted by Stealthmode
In English, this is what I'm thinking. If I hid the inlet/outlet hoses under the carpet and behind the plastics, the bottle would be easy as ---- to remove and install whenever. I was just wondering how well it would work for the effort.
I give it about 5-6 seconds for a 20oz CO2 paintball tank. That bottle will contain enough gas to cool about 1.8 cubic inches of air, which is about the same thermal load reduction as using the rubber bulb from a turkey baster to blow air on your face. I estimate this approach at about $1,000 per 1 minute of cool.

If you upgrade to 10lbs nitrous bottle, it will probably last just long enough to cool all the air volume in an '89 Ford Festiva, after which it will run out and you'll have to put the windows down for the remaining 95% of your trip. Results may vary with your larger car. This one will yield about $80 per minute of cool.

Now if you really want to keep it cool for a serious road trip you should consider a 80-100 cubic foot Argon tank. I'm sure this will keep even your Escalade interior cool for as long as you have gas to drive, at which point you can also stop and get your bottle refilled. Obviously you might run into some packaging/safety issues, but nothing that can't be dealt with by simply taking less passengers and cargo. This method also happens to be the most efficient at about $20 per minute of cool, plus bottle depost etc if you don't already have one.

That's my expert opinion.

In all seriousness though. The rate at which you would have to discharge any pressurized gas in order to get that core sufficiently cool, you'd run out even a welding tank before the car even started to get remotely cool. I'd scrap that idea and go with the household air conditioner.
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Old 06-20-2007, 11:30 AM
  #37  
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Default Re: Homemade A/C, requesting thinkers.

It's Minnesota; I think rolling your windows down will be just fine.
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Old 06-21-2007, 07:31 PM
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Default Re: Homemade A/C, requesting thinkers.

There are some freaking geniuses posting in this thread. The Fred Flintstone underbody wheel driven alternator array was key. I want to see that in action on someone's rig. Seriously though, you could buy one of those walmart window mount ACs and bust it apart for the pump, evaporator and condenser, install it all in the car, solder all the lines up and run that mess off of an inverter. It'd be super clean, extremely efficient, and unique, in an HMT sort of way. Mounting the whole unit in the window might put a little too much stress on those thin sheetmetal cases most of those units have.

After reading this thread I thought: "Just move up north", but then I realized you're in Minnesota. What the heck do you need AC for up there? You could reverse the AC and use the condenser as an in cab heater I guess.
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Old 06-21-2007, 07:40 PM
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Default Re: Homemade A/C, requesting thinkers.

Originally Posted by hooohaa2
There are some freaking geniuses posting in this thread. The Fred Flintstone underbody wheel driven alternator array was key. I want to see that in action on someone's rig. Seriously You could reverse the AC and use the condenser as an in cab heater I guess.
Heat pump style!!!
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Old 06-22-2007, 08:44 AM
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Default Re: Homemade A/C, requesting thinkers.

i vote use a bottle of c02 and spray it through for a burst. All you would need is a tank, hose/fittings, a solenoid and a switch. Very simple
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