10-01-2003, 05:06 PM
(This post was last modified: 10-01-2003, 05:10 PM by Occhidiangela.)
IIRC, that was used in early refrigeration units, like back in the 1800's. (If memory serves, Australian beef and lamb was shipped to Europe using an early form of this cooling system)
Ammonia has its own hazards insofar as handling, spillage, and as an irritant to humans who are unlucky enough to get a bunch of it on them. As a hazardous material, it is not the worst, nor is it the best, material to work with.
IIRC, Freon is more efficient at removing heat. It's other advantage, from a practical point of view, is that if it leaks, it "disappears" via evaporation (yes, not the best thing for the air, I agree with you there) whereas if ammonia leaks, that can create secondary harmful effects to persons or animals in the effected area.
My new car, 2000 model, does not use freon in its air conditioner. So, at least the Greens and the EPA have been able to see some progress.
Ammonia has its own hazards insofar as handling, spillage, and as an irritant to humans who are unlucky enough to get a bunch of it on them. As a hazardous material, it is not the worst, nor is it the best, material to work with.
IIRC, Freon is more efficient at removing heat. It's other advantage, from a practical point of view, is that if it leaks, it "disappears" via evaporation (yes, not the best thing for the air, I agree with you there) whereas if ammonia leaks, that can create secondary harmful effects to persons or animals in the effected area.
My new car, 2000 model, does not use freon in its air conditioner. So, at least the Greens and the EPA have been able to see some progress.
Cry 'Havoc' and let slip the Men 'O War!
In War, the outcome is never final. --Carl von Clausewitz--
Igitur qui desiderat pacem, praeparet bellum
John 11:35 - consider why.
In Memory of Pete
In War, the outcome is never final. --Carl von Clausewitz--
Igitur qui desiderat pacem, praeparet bellum
John 11:35 - consider why.
In Memory of Pete