Refrigerants and the Challenge of Lessening Their Impact to the Environment
Refrigerants are a necessity of
modern life. Refrigerants allow us to keep our food fresh in our home
refrigerators and keep our cars & homes cool on hot days. Unlike
commercial or industrial applications, which use ammonia cooling and large heat
exchange towers, residential applications usually utilize chlorofluorocarbons
(CFCs) or hydro- fluorocarbons (HFCs) as a refrigerant. These are
preferred in residential cooling systems because they require a relatively
small heat exchange system, are non-flammable, and are safe in low
concentrations. Evaporative cooling, which is an effective air
conditioning method in dry climates, is not effective in cooling homes in humid
climates.
evaporativecooleraustralia.com.au |
Unfortunately, CFCs are very
effective at breaking down the Ozone (O3) Layer which prevents ultraviolet
light from reaching the earth’s surface. The Montreal Protocol, which was
initiated in 1987, limits the use of CFCs to limit the damage to the Ozone
Layer. Also, HFCs are powerful greenhouse gases that heat the atmosphere
which contributes to global warming. The Kyoto Protocol, which was
initiated in 1997, limits the use of HFCs in order to reduce global
warming. These two protocols show that there is an international desire
to reduce damage to the ozone layer and global warming. Nevertheless,
creating treaties and other superficial public demonstrations of concern are
not going to create enduring change on the health of the environment.
Plus, people don’t seem to want to deal with extremely hot temperatures without
some form of refrigerant.
esciencenews.com |
Creating new, and safer,
refrigerants are a priority for everyone because we all need refrigeration, in
some form or another, in our daily lives. There are some organizations
that are funding research into creating refrigerants that are better for the
environment. For instance, the American Society of Heating,
Refrigerating, and Air-Conditioning Engineers (ASHRAE) is currently funding
research into a new substance that will not harm the ozone layer and will have
a minimal impact on the environment. However, this new product has only
been applied to commercial uses and has not been tested in residential home
appliances. Hopefully, with further research this project may be able to
create products for home and automotive use. Currently, a profitable, and
environmentally friendly, method of refrigeration to the public remains
challenging.
cdn.physorg.com |
No doubt, there are many issues
facing the average consumer in today’s world. Those consumers are, more
often than not, focused on caring for their families and getting every ounce of
value for their hard earned money. Therefore, there is little or no
reason for companies and private funding to invest in researching this
important issue. The first question is how can companies can deliver this
safer option and maintain their earnings for their investors. The other
question is whether the public would be willing to pay a price premium for this
environmental option, whatever it may be, in order for companies to remain
viable during the product’s introduction. The fact remains, further
public awareness on this issue will create more charitable funding, corporate
research, and effective environmental policies.