It uses a compressor. The freon is compressed which causes it to heat. The excess heat is then removed through a heat exchanger.
http://engineering.wikia.com/wiki/Shell_and_tube_heat_exchanger
After the freon has cooled, it is expanded into an area of lower pressure – causing it to get cold.
Freon causes environmentalists heads to explode, so they use other refrigerants now.
But remember, if freon gets into the atmosphere it will destroy everything. Like CO2 it is evil and will cause the stars to fall from the sky. All that exchanging of heat clearly means doom to us all! Doom! Doom!
Sorry… I’m in a good mood.
Got any research that shows Freon doesn’t kill ozone? Sorry to put you out of your good mood.
Hey, Steven.
The current models are free of ice, use less energy, lower temperatures than previous models.
A little localized heating coupled with an adequate system of winds.
And the system becomes more efficient.
No bear was killed in this comment.
salute,
Your stomach is very resistant….
http://home.howstuffworks.com/question144.htm
Freon is not used anymore because the patent for it ran out. The company taking royalties from the patents had their golden goose escape to the hole on the ozone layer. New gas with new patents and royalties must apply. Disclaimer : ALLEGEDLY
Now, now let’s not be cynical. Just because the patent on R-12 ran out doesn’t mean that “scientists” discovered that flourocarbons were causing the depletion of the ozone layer, and also, since the patent on it’s replacement R-134 is comming near it’s end, it is also being phased out in favor of a newer, “greener”replacement.
And just because, even though the production and use of flourocarbons has decreased dramatically, there has been no corresponding chance in the ozone hole, in fact it seemes to be completely independent of the concentration of flourocarbons from man made sources, doesn’t mean that that Montreal Protocol was a scam perpetrated purely to obtain an ecomonic benefit for one company.
I am offended (not).
Wait for the current patents to run out and we’ll get the Ozone hole nonsense recycled in no time. ;O)
Got a source for the claim that there has been no improvement in the ozone hole situation? I’ll wager the scientists studying it disagree with your assessment.
There you go, Ed :
http://ozonewatch.gsfc.nasa.gov/meteorology/annual_data.html
Lots of inter-annual variability with some evidence of a recovery in 2002 and again last year, but 2006 was as bad as it ever has been.
Too soon IMO, to say whether the ozone hole is undergoing a long-term recovery.
The patents may have run out later, but Freon was regulated out of use:
http://www.epa.gov/chemfact/f_freon.txt
Ed, here’s a link to your prior question about no improvement in Ozone. Oddly, the title is, “Ozone layer depletion leveling off”
I find it funny.
http://www.theozonehole.com/esasep09.htm
The funny part about the ozone hole, is that as soon as we discovered it, we automatically assumed it wasn’t suppose to be there and that we put it there and it was bad. I think it is suppose to be there and I think it is part of the equilibrium seeking mechanism this earth has.
Here’s a multi-year visual comparison.
http://wattsupwiththat.files.wordpress.com/2011/01/ozone_hole_1995_2007_sep_large1.png
I also think the Chinese are getting several millions of dollars from UN for not making R-12 and not using it. May have full facts aschew.
Offhand I can’t think of any provision in the UN Charter that would allow such an arrangement. Got a link?
No such assumption was ever made. There was a good deal of work into whether it was natural, and a great deal of work done on the mechanisms that cause it. That work revealed man-made pollutants to be the major contributor to the phenomenon.
How does thinning ozone contribute to any equilibrium we need or desire?
Total BS!
The Ozone “Thinning” is a natural happening and there is NO “Equilibrium” in nature. Nature is the struggle to attain something that does not exist: Harmony and Equilibrium. If either Harmony or Equilibrium were achieved Life would cease. It is the instability in the biosphere that creates and sustains life!
There is no real world scientific evidence that either Human released gasses thinned the Ozone or drive climate. There is evidence that Wild Ass Guesses about human’s contribution drive funding for research. over 90% of all research is chasing Phantoms for the primary purpose of doing research! There is so much wasted duplication of generating fantasies there is no longer a link to reality.
Who decides which is real and which is the illusion?
Mike, tell me where these guys go wrong:
http://www.atm.ch.cam.ac.uk/tour/
Mike, to the best of my knowledge, Nature has not retracted this article:
http://www.ciesin.org/docs/011-430/011-430.html
Got a rebuttal to it?
Is there some virus that causes posters here to lose all sense of science?