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Types of Refrigerants and Their Environmental Impact
Rubber World IndustriesIn the HVAC industry, refrigerants are used in various equipment such as air conditioners, refrigerators, freezers, etc. Refrigerants are substances, often in liquid form that are used in a refrigeration cycle to cool a certain space. It is responsible for capturing heat and then releasing it to another space by using the thermodynamic phenomena of phase changes wherein fluid changes into gas and vice versa.Refrigerants and the EnvironmentMost refrigerants are known for having a negative effect on the environment since they contribute to global warming and ozone layer depletion. Greenhouse gases like carbon dioxide and emissions from some refrigerants are contributors to global warming by absorbing infrared radiation and holding it in the atmosphere. This is called the greenhouse effect.Global Warming Potential (GWP)Refrigerants have a measure of the amount of heat a gas will trap in the atmosphere over time as compared to carbon dioxide. This is called GWP or Global Warming Potential. Carbon Dioxide has a baseline GWP of 1, therefore, a gas that has a GWP that is higher than 1 traps more heat than CO2.Ozone Depletion Potential (ODP)There are also some chemical compounds, which include refrigerants, that contribute to the depletion of the ozone layer. The ODP of chemicals is the measure of how much it causes the ozone layer to degrade as compared to trichlorofluoromethane (CFC-11), which has a baseline ODP of 1. Therefore a chemical with an ODP over 1.0 will degrade the ozone layer more than CFC-11.Gulf-O-Flex, a flagship Brand of Rubber World Industries in the Middle East, has products that are CFC free, and has an ODP of zero for environmental friendly products. It is also formaldehyde free, has low VOCs, and resistant to mold and mildew.Types of RefrigerantsChlorofluorcarbonsPopularly known as CFC’s, they are an excellent unreactive refrigerant that has a low boiling point. They also have low toxicity, are inexpensive, easy to store and have no fire risk. Unfortunately, these are ozone-depleting greenhouse gases which contain fluorine, so they are dangerous to the environment. In 1994, most countries have already stopped producing CFCs. By 2020, developing countries should have already eliminated all CFC stock.HydrochlorofluorocarbonsThese are known as HCFCs, and are currently being used as a replacement for CFCs. But soon, even these will be phased out over time. HCFC’s are more ozone-friendly than CFCs, but still deplete the ozone, just at a slower rate.HCFCs is a potent greenhouse gas that is many times more potent than carbon dioxide. In addition to this, HCFCs have contributed to chlorine build-up in the atmosphere.HydrofluorocarbonsHFCs are chosen by many refrigeration manufacturers because they are a good replacement substance for CFCs and don’t deplete the ozone as much as CFCs or HCFCs. Unfortunately, HFCs are a potent greenhouse gas source, therefore having a high global warming potential.Natural RefrigerantsNatural refrigerants occur naturally, meaning they are not man-made like other refrigerants that were just discussed. They can be utilized as cooling agents for refrigerators and air conditioners. Examples of natural refrigerants are hydrocarbons, ammonia, carbon dioxide and water.Hydrocarbons or HC contain carbon dioxide, but this has a Global Warming Potential of 1 and HCFCs and HFCs that are popular on the market have a GWP in the thousands. Therefore, hydrocarbon that is used as a refrigerant is the most environmentally-friendly option that is available today.
Rowena LariosaRubber World IndustriesMarketing@gulfoflex.com+971 6 7434176Media ContactAlyssa GonzagaMedia AccountLincoln Martin Strategic Marketing+971 50 4289684