What is ODP and GWP in refrigeration?
Ozone Depletion Potential (ODP) of a chemical compound is the relative amount of degradation it can cause to the ozone layer. Global Warming Potential (GWP) is a measure of how much a given mass of a gas contributes to global warming.
What is the difference between ODP and GWP?
The difference between an ODP and GWP is: Not every refrigerant has an ODP, The ODP is a number given to a refrigerant that says how strong a refrigerant causes ozone depletion in the stratosphere, whereas all refrigerant have a GWP, CFC HCFC and HFC as well as CO2 water vapor and may other chemicals absorb reflect and …
Which of the refrigerant has zero ODP?
HFC-134A
HFC-134A (R134A): this has replaced CFC-12 in home refrigeration and car air-conditioners. Its ODP is zero but its GWP is rather high.
Which refrigerant has greatest ODP?
R-11
The highest ODP is 1 for R-11, a CFC. If a refrigerant does not contain chlorine and does not destroy ozone, it has an ozone depletion potential (ODP) of 0.
What does ODP mean refrigerant?
The ozone depletion potential (ODP) of a chemical compound is the relative amount of degradation to the ozone layer it can cause, with trichlorofluoromethane (R-11 or CFC-11) being fixed at an ODP of 1.0. Chlorodifluoromethane (R-22), for example, has an ODP of 0.05.
Which refrigerant has highest GWP?
The most common refrigerant today, R-22, has a 100-year GWP of 1,810, almost 2,000 times the potency of carbon dioxide, so just one pound of R-22 is nearly as potent as a ton of carbon dioxide.
How ODP and GWP does affect refrigerant selection?
Refrigerant gases containing chlorine or bromine have a high Ozone Depletion Potential (ODP) damage the planet’s ozone layer. These and several other gases also have a high Global Warming Potential (GWP) and contribute disproportionally to the continuing increase in global warming.
What refrigerant depletes the ozone layer?
chlorofluorocarbons (CFCs)
Many refrigerants, such as chlorofluorocarbons (CFCs) damage the ozone layer, while others are extremely potent greenhouse gases. In fact, one kilogram of the refrigerant R410a has the same greenhouse impact as two tonnes of carbon dioxide, which is the equivalent of running your car for six months.
What is GWP in AC?
Global Warming Potential, or GWP, is a measure of how destructive a climate pollutant is. Refrigerants today are often thousands of times more polluting than carbon dioxide (CO2).
What is GWP in refrigeration?
Global Warming Potential, or GWP, is a measure of how destructive a climate pollutant is. The most common refrigerant today, R-22, has a 100-year GWP of 1,810, almost 2,000 times the potency of carbon dioxide, so just one pound of R-22 is nearly as potent as a ton of carbon dioxide.
What GWP means?
A GWP (Gift With Purchase) is an item intended as a free gift with a larger purchase.
What does GWP stand for AC?
Global Warming Potential
Refrigerant GWP GWP stands for Global Warming Potential. It is a relative index to quantify the amount of heat trapped in the. atmosphere by a greenhouse gas. By definition the GWP of carbon dioxide (CO2) is equal to 1.
What is the GWP of R-125 refrigerant?
While R-125 doesn’t deplete the Ozone it does have an extremely high Global Warming Potential (GWP). The GWP’s zeroing scale is Carbon Dioxide (R-744). Carbon Dioxide has a GWP of one whereas R-125 has a GWP of thirty-five hundred. Obviously, the higher the GWP number the more damage the refrigerant does to the environment.
What is the ODP of a refrigerant?
ODP Defined. The ODP, or Ozone Depletion Potential, is the potential for a single molecule of the refrigerant to destroy the Ozone Layer. All of the refrigerants use R11 as a calibration and thus R11 has an ODP of 1.0. The less the value of the ODP the better the refrigerant is for the Ozone Layer and the Environment.
When did the refrigerant R-125 come out?
R-125 came about in the mid 1990’s and early 2000’s when the world was looking for replacements to the popular CFC and HCFC refrigerants R-502 and R-22. These previous refrigerants were found to be harming the Ozone layer and were phased out by the Montreal Protocol.
What are the environmental properties of a refrigerant?
No chlorine content, no ozone depletion potential, ODP = 0. Global warming potential GWP = 1610. R-410A. . R410A is a binary blend of hydrofluorocarbon or HFC compounds. 50% of R32 and 50% of R125. No chlorine content, no ozone depletion potential. ODP = 0. Global warming potential GWP = 1725.
