Join Date: Jul 2012
Location: Canada, Sk, Yorkton
Originally Posted by oldrebuiltdodge
Just expansion and compression of a gas, and the method of controlling it. It works the same way in any a/c unit, it's all just controlled, and used differently. Even compressed air will react the way refrigerant will, but not to that extent, unless it is compressed enough to turn to a liquid. The various refrigerants are used because of their low liquify pressures, and they aren't flammable.
Actually air is used in some cases as a refrigerant as is CO2, known as supercritical refrigerant cycle, then we have R290 (propane) that beats the crap out of R22 in over all cycle efficiency, R-600a (Iso butane) used in allot of fridges now days. Older but still the best is R-717 (Ammonia) toxic and flammable but the best for mass cooling.
Water is used as a refrigerant too for massive cooling systems above 6c in absorption mode or centrifugal systems
Redtech and such over the counter refrigerants are Alkane based (Hydrocarbon gasses)
New truck: 1988 F-350 1 ton dualy 2*4, 7.3L IDI Naturally Aspirated, Dual tanks with Camper package.
Mods: Enhanced gauge cluster; Transmission temp, rear diff temp, coolant system pressure, Vacuum pressure, Fuel pressure, Crappy tire Air horn Kit, Raycor pre filter/water sep. All LED Dash lighting, Parker LFS tranny filter, super duty tranny cooler, gerret turbo, waste gated (pending).