cold air

Nitrogen, get it at a welding supply.

paulw1283 wrote:

Does anyone know what's the easiest way to get a source of cold gas?

Feed an Eskimo beans?

That sounds like a good idea! You could use some chicken wire to make the cage and some small self tapping screws to hold it up! MMM... Beeer....

Ok, Colin trigger an idea...

I'll combine my days of old when drinking and racing was a regular event in my life.

Get one of those little under counter college dorm size freezers.
Drill a hole on the bottom right, snake in your air hose.
Coil the air hose inside, the more the better... ahhh wrap 50 to 100 feet inside.
Drill a hole on the left side on top and snake the air hose out (or whatever side the holes work best for you).

Now, if you are smart... make a cage of sorts so the air hose inside the freezer zig-zags back and forth from left to right along the sides and back, leaving the front and center of the freezer accessible. Then you can put a small keg inside with the pump/spicket coming out the top. Stick the freezer right next to your hobby bench and your all set for a weekend of modeling.

Chilled air and chilled fuel... !

You could always try making an insulated box and putting ice in it to keep your tank in, or maybe an old cooler that you could put something cold in to keep the tempature down and keep your tank in that. Usually the faster you release air, the cooler it becomes, but it heats up when it compresses. So what is it your going to do with this cold air? Is the cat a problem, cause there are easier ways to solve that

Oh, heres another thing. They used to make, and probably still do, things that go on your gas line of your car you can put dry ice in to compress your gas to get more power. Maybe you could put on of those on your airline and see if that does the trick?

Not sure why you would want really cold air for modeling... 

My oxygen tank (from my oxygen & acetylene torches) blows cold after just a few seconds. Not exactly sure how cold it is, but I sure don't want to hold my hand in front of it for too long. It's not as cold as sticking my hand in a 4 foot snow bank thought. It's definitely cold enough to chase the cat off the hobby bench.