Does CO2 have a high GWP?
Carbon dioxide is the reference. It has a GWP of 1 regardless of the time period used. CO 2 emissions cause increases in atmospheric concentrations of CO 2 that will last thousands of years.
What is the ozone depletion potential of CO2?
Bromotrifluoromethane (halon‑1301) has an ozone depleting potential of 10.0. Carbon dioxide (CO2), a naturally occurring greenhouse gas, has an ozone depleting potential of 0.
What does ozone depletion potential or ODP ‘) measure?
Precisely, ODP of a given substance is defined as the ratio of global loss of ozone due to the given substance to the global loss of ozone due to CFC-11 of the same mass. ODP can be estimated from the molecular structure of a given substance.
What is considered a high GWP?
WHAT IS GWP? The higher the GWP value, the more that particular gas warms the Earth compared to carbon dioxide. GWP values for ozone depleting substances can range, for example, from 2 up to about 14,000. The GWPs of commonly used HFCs can range from <1 to about 12,500.
What is a high GWP?
Chlorofluorocarbons (CFCs), hydrofluorocarbons (HFCs), hydrochlorofluorocarbons (HCFCs), perfluorocarbons (PFCs), and sulfur hexafluoride (SF6) are sometimes called high-GWP gases because, for a given amount of mass, they trap substantially more heat than CO2.
Which compound has highest ODP?
CFCs have the highest ODP, followed by HCFCs.
What is importance of ODP and GWP?
Refrigerants – Ozone Depletion (ODP) and Global Warming Potential (GWP). Common refrigerants and their Ozone Depletion Potential (ODP) and Global Warming Potential (GWP) are indicated below. Global Warming Potential (GWP) is a measure of how much a given mass of a gas contributes to global warming.
What is the ODP level for R12?
Refrigerants – Ozone Depletion (ODP) and Global Warming Potential (GWP).
| Refrigerant | Ozone Depletion Potential (ODP) | Global Warming Potential (GWP) |
|---|---|---|
| R-12 Dichlorodifluoromethane | 1.0 | 2400 |
| R-13 B1 Bromotrifluoromethane | 10 | |
| R-22 Chlorodifluoromethane | 0.05 | 1700 |
| R-32 Difluoromethane | 0 | 650 |
What is ODP 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 in refrigerants?
The less the value of the ODP the better the refrigerant is for the Ozone Layer and the Environment. The GWP, or Global Warming Potential, is a measurement of how much effect the given refrigerant will have on Global Warming in relation to Carbon Dioxide.
What is the GWP of CO2?
The GWP is the ratio of the warming caused by a substance to the warming caused by a similar mass of carbon dioxide. Thus, the GWP of CO2 is defined to be 1.0 . CFC-12 has a GWP of 8,500, while CFC-11 has a GWP of 5,000. Various HCFCs and HFCs have GWPs ranging from 93 to 12,100. Water, a substitute in numerous end-uses, has a GWP of 0.
What is ododp and GWP in R410A?
ODP = 0.05, GWP = 1700. R410A is a binary blend of hydro fluorocarbon (HFC) compounds (50% = R32, 50% = R125) It has no chlorine content, no ozone depletion potential, and only a modest global warming potential.
Where can I find the ODP and GWP numbers of ozone-depleting substances?
A table of all ozone-depleting substances (http://www.epa.gov/ozone/science/ods/index.html) shows their ODPs, GWPs, and CAS numbers. Global Warming Potential A number that refers to the amount of global warming caused by a substance.