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Refrigerants - Coggle Diagram
Refrigerants
CFC(Chlorofluorocarbon Refrigerants)
First widely used refrigerants
Contains chlorine
Harmful to the ozone layer
Invented in 1890 by Frédéric Swarts
Improved and mass produced by General Motors and DuPont
Cheaper and safer compared to the earliest refrigerants yet not environmentally friendly
Banned in December 1978
HFC(Hydrofluorocarbon Refrigerants)
Created and used in 1980
Similar to HCFC but without chlorine
Much safer, non-flammable/toxic cheap
Most widely used refrigerants in the world
Really high GWP
Most used HFC refrigerant's GWP is 1430 while the highest can go up to 3922
Kigali Amendment
Additional agreements for the Montreal Protocol
Start the phasing out of the HFC to replace with HFO
HCFC(Hydrochlorofluorocarbons Refrigerants)
Similar to CFC except having extra hydrogen atoms
Lower impact to the ozone layer
Most breakdown before reaching the ozone layer
Lower impact doesn't means no impact
Banned in 2001
HFO(Hydrofluoroolefin Refrigerants)
Non-ozone depleting yet slightly dangerous
Risk of flammability
Way lower GWP compared to HFC
Some has a GWP of 0 and some has a GWP of 1
New & the future refrigerant?
Further research may be required
Related events
Montreal protocol
Regulations of the manmade substance that destroy the ozone layer
All UN members has stoped the production & usage of HFC and HCFC
16 September 1987
What is ozone layer & result of ozone layer depletion
Protective gas clinging to the earth
Protect & Absorbs the UV rays from the sun
Damaging of DNA & any life on earth
Causing cancer to humans
Killing plants and animals
Increase global warming
Global Warming Potential(GWP)
Measurement of how much heat a greenhouse gas can trap in the atmosphere
CO2 has a GWP of 1
Earliest refrigerants
Toxic
Ammonia
Chloromethane
Sulfur Dioxide
Flammable
Propane
Expensive