In fact, it is the most common refrigerant gas in mobile air conditioning mac systems. These new fluids have potential in small commercial and residential applications where a medium pressure refrigerant can be efficiently employed and where low gwp is needed or desired. Lccp calculations were done in several key cities representing different climatic regions of the world using the greenmac lccp 2007. Hfo refrigerants what you need to know refrigerant hq. Minor, barbara and spatz, mark, hfo1234yf low gwp refrigerant update 2008.
In the eu, low gwp refrigerants have a gwp of 150 or less. These devices began using 1,1,1,2tetrafluoroethane in the early 1990s as a replacement for the more environmentally harmful r12 and retrofit kits are available to convert units that were originally r12equipped. Based on these results, the sponsors of the sae crp 1234 have concluded that hfo1234yf can be used. Apr 27, 2017 the same is true of new automobiles by 2017. For frozen food applications the nonflammable options 2 low gwp alternatives.
Opteon yf r1234yf is a hydrofluoroolefin hfo refrigerant that has the same chemical elements but contains one double bond between one set of the carbon atoms. Solstice yf refrigerant r1234yf honeywell hfo1234yf is a replacement for r4a as a refrigerant in automotive air conditioners. R1234yf r1234yf refrigerant honeywell 8 oz can note. Honeywell reaffirms safety of new lowgwp automotive. Solstice yf refrigerant is a near dropin replacement for r4a in automobile ac applications, helping automakers around the world comply with eu low gwp requirements. R1234yf, or hfo1234yf is soon to be one of the most popular refrigerants in the world. An lccp analysis was conducted for hfo1234yf, which has a 100 year direct global warming potential gwp of 4, versus the current refrigerant hfc4a with a 100 year direct gwp of 1430. It thus significantly reduces the carbon footprint of refrigeration systems over the total lifetime. Working with industry leaders, leading oems, and customers, arkemas hfo developmental solutions offer a balance of performance benefits and reduced environmental impact. Lccp calculations were done in several key cities representing different climatic regions of the world using the greenmac lccp 2007 model developed by. Because hfo1234yf has an extremely low environmental impact a gwp of less than 1 compared with a gwp of 1,300 for the current refrigerant, hfc4a, the u.
Lccp calculations were done in several key cities representing different climatic regions of the world using the green mac lccp 2007 model developed by. Hfo1234yf is the first in a new class of refrigerants acquiring a global warming potential rating 335 times less than r4a and only 4 times higher than carbon dioxide, which can also be. Hfo1234yf having zero ozone deple tion potential and very low global warming potential. This is based on the mac directive 200640eg, passed in july 2006. The dominant mobile air conditioning refrigerant has come under scrutiny recently due to its high global warming potential. Hfo r1234yf has a gwp of just 4, providing substantially lower direct greenhouse gas emissions than r4a systems. Automotive refrigerant with low global warming potential. How is the refrigerant hfo1234yf different from r4a. Dupont is prepared to supply the market with low gwp. Honeywell announces major investments to increase hfo1234yf.
Nearly half a million cars are on the road today using hfo1234yf. Legislated regulations have dictated that an alternative must be found at least for the european automotive market. Epas significant new alternatives snap program, and qualify under the european union fgas regulations as acceptable with gwp. An lccp analysis was conducted for hfo 1234yf, which has a 100 year direct global warming potential gwp of 4, versus the current refrigerant hfc4a with a 100 year direct gwp of 1430. Hfo1234yf is a nonozone depleting, low global warming potential.
Hfo1234yf is the first in a new class of refrigerants acquiring a global warming potential rating 335 times less than r4a and only 4 times. Hfo1234yf is a nonozone depleting, low global warming potential gwp refrigerant. Typical mac condition 0 5 10 15 20 25 30 3510 5 0 5 101520 temperature oc. Latest options for replacing hfc4a refrigerant in macs. Arkema is developing lowgwp global warming potential hfo refrigerant and blowing agent solutions to meet the future needs of the industry. Mac lccp 2007 model was used as the basic foundation for this analysis. Experimental analysis of r1234yf as a dropin replacement for r4a in a vapor. Gwp is a relative measure of how much heat a greenhouse gas traps in the atmosphere, with carbon. Hfo1234yf, which has physical properties similar to r4a, complies with the directive because of its low global warming potential gwp and has the potential for direct substitution of into existing r04a automotive air conditioning systems with minimal modification. Timing became driven by the european union mac directive. Hfo 1234yf is a pure compound which is highly energy.
When released to the atmosphere, the molecule rapidly disintegrates within a few days, resulting in a very low gwp. New mobile air conditioning fluid hfo1234yf in car. Introduction over the last several years, much research and development effort has been focused on potential refrigerants possessing low. Can solstice yf refrigerant r1234yf honeywell hfo1234yf is a replacement for r4a as a refrigerant in automotive air conditioners. Nearly half a million cars are on the road today using hfo 1234yf. Honeywell reaffirms safety of new lowgwp automotive refrigerant. Hfo1234yf is a new low global warming refrigerant that has the. Because hfo 1234yf has an extremely low environmental impact a gwp of less than 1 compared with a gwp of 1,300 for the current refrigerant, hfc4a, the u. Sponsors of sae study conclude hfo1234yf can be used as. This is a low gwp global warming potential replacement for r4a for use in mobile air conditioning mac systems in the automotive sector.
M a f l o w remarks with the same gas concentration 0. Dupont codeveloped hfo1234yf in response to europes mac directive, and the company markets and sells the refrigerant under the name opteon yf. Hfo1234yf shows lower permeability values toward veneer hoses compared to r4a. Hfo1234yf is the first in a new class of refrigerants acquiring a global warming potential rating 335 times less than r4a and only 4 times higher than. Many automakers have engineered their vehicles for hfo1234yf because they saw. Chemours doubles chinabased hfo1234yf supply to meet. Low gwp refrigerants understanding gwp, ghg, odp and. Experimental analysis of r1234yf as a dropin replacement for. Hfo 1234yf hydrofluoroolefin, 2,2,2,3 tetrafluoroprop1ene enables carmakers to meet eu low gwp requirements. Transitioning to lowgwp alternatives in motor vehicle air. The professors lesson on hfo, hc refrigerants 20141201.
Hfo r1234yf has a gwp of just 4, providing substantially lower direct greenhouse gas. Environmental protection agency epa allows automakers to receive credits for using hfo1234yf. The transition from hfc4a to low gwp refrigerants in. July 9, 2015 chemours fluoroproducts announced that it has doubled the supply of lowgwp opteon yf hfo1234yf refrigerant in. Opteon yf is the chemours brand name for hfo1234yf refrigerant, also referred to as r1234yf. Hfo1234yf has been identified as a new low global warming refrigerant which has the potential to be a global sustainable solution for automotive air conditioning. Nextgeneration refrigerant delivers low gwp dupont. R 1234yf, or hfo 1234yf is soon to be one of the most popular refrigerants in the world. Despite the phasein success of hfc4a as a zero odp automotive refrigerant it is still a potent greenhouse gas and the european union eu issued directive 200640ec that prohibits the use of automotive refrigerants with gwp. It is also designated r1234yf as the first of a new class of refrigerants. Comparison between hfc4a and alternative refrigerants.
How dupont opteon yf refrigerant is different from hfc4a the current leading refrigerant, hfc4a is a hydrofluorocarbon refrigerant, while opteon yf hfo 1234yf is a hydrofluoroolefin refrigerant. Hon issued the following statement following recent media reports that falsely claim the new low global warming potential gwp refrigerant hfo1234yf is less safe than the commonly used, high global warming refrigerant, hfc4a. Making its debut in the early 2000s it has quickly rose to power and will soon be the dominant refrigerant in the automotive industry. The transition from hfc 4a to a lowgwp refrigerant in. Automakers around the world can now meet eu low gwp requirements for auto air conditioning refrigerant with solstice yf. For chill applications r450a has a gwp of 601 and is nonflammable.
R4a has a global warming potential gwp of 1430, creating direct greenhouse. Hfo1234yf is the first in a new class of refrigerants acquiring a global warming potential rating 335 times less than r4a and only 4 times higher than carbon dioxide, which can also be used as a. This refrigerant, designated r1234yf, belongs to the group of hydro fluoro olefins hfo. With the very low gwp of hfo 1234yf, the overall carbon footprint of vehicle airconditioning is dominated by the energy efficiency of the system 4 5, the relative lccp for co2 systems was improved under lower ambient temperature conditions. From 1 january 2017, this ban will be extended to all new vehicles. Today, as i write this in october of 2017 there are approximately thirtyfive million cars.
Dupont applies its scientific expertise to creating sustainable solutions that make a difference in the world and commercialization of opteon yf is a great example of this commitment. Nextgeneration refrigerant delivers low gwp dupont automotive. Dec 01, 2014 hfo1234yf is a lowgwp replacement for r4a intended for use in mobile air conditioning mac systems in the automotive industry. Hfo1234yf maintains comparable energy consumption to the hfc4a systems it replaced, but considerably reduces the global warming impact of refrigerant emissions due to its very low gwp of 4 ipcc fourth assessment report value referenced in the fgas regulation 5172014, more recently revised to warming potential gwp of 4, versus the current refrigerant hfc4a with a 100 year direct gwp of 1430. The low global warming potential gwp refrigerants emerging today can be grouped into several categories. Many automakers have engineered their vehicles for hfo1234yf because they. Engineers are currently being challenged to design mac systems using alternate low gw. With the passage of the kigali amendment to the montreal protocol, hfc4a refrigerant will be phased down in all markets worldwide, including those where automotive companies have been slow to embrace hfo 1234yf. With the very low gwp of hfo 1234yf, the overall carbon footprint of vehicle. Honeywell offers r4a, the industry standard for mobile ac, as well as solstice yf r1234yf, a near dropin replacement for 4a. The global warming potential is extremely low gwp100 4.
Worlds leading producer of hfo1234yf significantly increases capacity of low global warming potential gwp opteon yf for mobile and stationary applications published july 09, 2015 wilmington, del. A twoyear cooperative research program conducted through sae international to investigate the safety and environmental performance of the lowglobal warmingpotential gwp refrigerant hfo1234yf for mobile air conditioning mac systems has finished its study. In 2009, the car manufacturers chose the new refrigerant hfo 1234yf to fulfil this requirement due to its low gwp. Hfo 1234yf has been identified as a new low global warming refrigerant which has the potential to be a global sustainable solution for automotive air conditioning. R1234yf, 1234yf, r1234 refrigerant honeywell, 10 lb solstice. Opteon yf has a gwp dupont opteon yf refrigerant is different from hfc4a the current leading refrigerant, hfc4a is a hydrofluorocarbon refrigerant, while opteon yf hfo1234yf is a hydrofluoroolefin refrigerant. Environmental protection agency epa allows automakers to receive credits for using hfo 1234yf. R152a 50,000 hfo1234yf 101,000 co 2 40,000 r4a 50,000 r12 18,000 refrigerant atel ppm hfo1234yf has a favorable atel value short term tox exposure not an issue for collisions, accidental releases. Hfo1234yf developmental test results have no impact on atel value. Hfo 1234yf low gwp refrigerant update honeywell dupont joint collaboration mark spatz barbara minor honeywell dupont international refrigeration and air conditioning conference at purdue july 1417, 2008. Sponsors of sae study conclude hfo1234yf can be used as low. Starting in january 2011, all new vehicle types must have an air conditioning refrigerant with a global warming potential gwp below 150. When the european commission challenged the industry to develop a product to meet the requirements of the mac directive legislation that called for new automobiles to use a refrigerant with a global warming potential less than 150, dupont developed hfo1234yf, a new more environmentally sustainable refrigerant for automobiles that has a 99. If a mildly flammable refrigerant is acceptable, then hfo 1234yf or 1234ze can be considered these have gwps below 10.
R1234yf, 1234yf refrigerant honeywell, 8 oz solstice yf. Hfo 1234yf maintains comparable energy consumption to the hfc4a systems it replaced, but considerably reduces the global warming impact of refrigerant emissions due to its very low gwp of 4 ipcc fourth assessment report value referenced in the fgas regulation 5172014, more recently revised to warming potential gwp of 4, versus the current refrigerant hfc4a with a 100 year direct gwp of 1430. With the passage of the kigali amendment to the montreal protocol, hfc4a refrigerant will be phased down in all markets worldwide, including those where automotive companies have been slow to embrace hfo1234yf. Hfo1234yf low gwp refrigerant update honeywell dupont joint collaboration mark spatz barbara minor honeywell dupont international refrigeration and air. Comparison between hfc4a and alternative refrigerants in.
Hfo1234yf has a global warming potential gwp of less than 1, compared to. Hfo1234yf hydrofluoroolefin, 2,2,2,3 tetrafluoroprop1ene enables carmakers to meet eu low gwp requirements. Air conditioning systems using solstice yf refrigerant are generally more energy efficient than competing technologies. Hfo1234yf has a gwp thats 300 times less than that of hfc4a. Synthesis procedure, chemistry, applications and con. The sae international mac refrigerant blend cooperative research program. These refrigerants are unsaturated hfcs with a chemical double bond. Honeywell identified hfo1234yf as a new low global warming refrigerant gwp 4. Hfo1234yf and hfc152a are listed as acceptable for use in mvacs subject to use conditions by the u.
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