Unfortunately, not a lot of R22 gets recycled. So as supplies decrease, prices will continue to rise. Currently, R22 is at least 5 times more expensive than more modern and preferred coolants, and even that may seem inexpensive in the future. If you need a major service, it might be time to replace your older equipment with a new system that is more energy efficient and uses a more environmentally friendly and less expensive coolant. The good news? The hole over Antarctica is starting to heal, and predictions are that it can be completely healed by if further damage to it can be averted.
There are more environmentally friendly refrigerants available today. There are even developing technologies that hold promise to cool without the use of refrigerants! Stay tuned! And as always, call KJ Thomas Mechanical at if you need heating and air conditioning installation or service. Find Out More. Do You Need a New Furnace? Repair or Replace Your Furnace?
Thinking to Replace? R is an example of a fluorocarbon, and FCs are also present in the mixtures R and R Hydrocarbons are a very limited solution to the environmental problems associated with refrigerants. The use of HCs as refrigerants is confined to Europe, because many other countries elsewhere have banned the use of flammable gas in the presence of the public.
However, the standard IEC This standard has opened the way for some European refrigerator manufacturers to produce household refrigerators with flammable isobutene, Ra. These have been accepted enthusiastically by environmentalists, and have achieved great success in the market. Ammonia, R, is an attractive refrigerant alternative. It has been used in refrigeration systems since and in vapor compression since In terms of its properties, it should be considered a high-class refrigerant.
However, although it is a selfalerting gas, i. This is the main reason why ammonia was withdrawn from applications for use by unskilled people and retained only for industrial applications. It is also quite common in commercial refrigeration, although safety regulations require that it be used with a secondary distribution loop.
Obviously, this secondary loop reduces the efficiency. R, carbon dioxide, has several attractive characteristics: non-flammable, does not cause ozone depletion, very low toxicity index safety A1 , available in large quantities, and low cost. However, it also has a low efficiency and a high operating pressure approximately 10 times higher than Ra.
For the two latter reasons, efforts are needed to improve its refrigeration cycle and related technology, particularly heat exchangers and expansion devices. A major forthcoming CO 2 application seems to be air conditioning in the automotive industry. Heat pumps could also benefit from CO 2 due to the higher temperature that can be obtained even at very low ambient temperatures.
I agree. Navigation Refrigeration handbook 1. Basic heat transfer 2. Compression cycle 3. HCFC usage must be reduced to at least 90 percent below baseline levels in and to at least Sections within Title VI cover production of ozone-depleting substances ODS , the recycling and handling of ODS, the evaluation of substitutes, and efforts to educate the public.
The U. Skip to main content. Contact Us. Additional Information. Contact Us to ask a question, provide feedback, or report a problem. No production or import of any other HCFCs, except as refrigerants in equipment manufactured before January 1,
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