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. 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. Lccp calculations were done in several key cities representing different climatic regions of the world using the greenmac lccp 2007 model developed by. Transitioning to lowgwp alternatives in motor vehicle air.
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. This refrigerant, designated r1234yf, belongs to the group of hydro fluoro olefins hfo. The sae international mac refrigerant blend cooperative research program. It is also designated r1234yf as the first of a new class of refrigerants. Dec 01, 2014 hfo1234yf is a lowgwp replacement for r4a intended for use in mobile air conditioning mac systems in the automotive industry.
For frozen food applications the nonflammable options 2 low gwp alternatives. Making its debut in the early 2000s it has quickly rose to power and will soon be the dominant refrigerant in the automotive industry. Hfo1234yf has a gwp thats 300 times less than that of hfc4a. Solstice ze offers a gwp of less than 1, which is 99. In 2009, the car manufacturers chose the new refrigerant hfo 1234yf to fulfil this requirement due to its low gwp. Typical mac condition 0 5 10 15 20 25 30 3510 5 0 5 101520 temperature oc. Hfo 1234yf hydrofluoroolefin, 2,2,2,3 tetrafluoroprop1ene enables carmakers to meet eu low gwp requirements.
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. Hfo1234yf shows lower permeability values toward veneer hoses compared to r4a. Sponsors of sae study conclude hfo1234yf can be used as low. This is a low gwp global warming potential replacement for r4a for use in mobile air conditioning mac systems in the automotive sector.
The dominant mobile air conditioning refrigerant has come under scrutiny recently due to its high global warming potential. The transition from hfc4a to low gwp refrigerants in. The global warming potential is extremely low gwp100 4. The new chemical, hfo1234yf, has a gwp of only 4, versus over 1,400 for the current refrigerant r 4a the switch will eliminate about 4% of automobile greenhouse gases although development work continues on other possible future alternatives, hfo1234yf will remain the only viable low gwp vehicle air conditioner. 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. Epas significant new alternatives snap program, and qualify under the european union fgas regulations as acceptable with gwp. Sponsors of sae study conclude hfo1234yf can be used as. Many automakers have engineered their vehicles for hfo1234yf because they.
Arkema is developing lowgwp global warming potential hfo refrigerant and blowing agent solutions to meet the future needs of the industry. Introduction over the last several years, much research and development effort has been focused on potential refrigerants possessing low. Hfo1234yf low gwp refrigerant update honeywell dupont joint collaboration mark spatz barbara minor honeywell dupont international refrigeration and air. Timing became driven by the european union mac directive. Nextgeneration refrigerant delivers low gwp dupont automotive. R1234yf r1234yf refrigerant honeywell 8 oz can note.
Nearly half a million cars are on the road today using hfo 1234yf. Hfo1234yf is a nonozone depleting, low global warming potential gwp refrigerant. Honeywell identified hfo1234yf as a new low global warming refrigerant gwp 4. If a mildly flammable refrigerant is acceptable, then hfo 1234yf or 1234ze can be considered these have gwps below 10. Automotive refrigerant with low global warming potential. 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.
Air conditioning systems using solstice yf refrigerant are generally more energy efficient than competing technologies. Hfo1234yf having zero ozone deple tion potential and very low global warming potential. 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. Hfo1234yf low gwp refrigerant lccp analysis sae international. Experimental analysis of r1234yf as a dropin replacement for r4a in a vapor. 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. 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. Today, as i write this in october of 2017 there are approximately thirtyfive million cars. Hfo1234yf will remain the only viable lowgwp vehicle air conditioner.
Gwp is a relative measure of how much heat a greenhouse gas traps in the atmosphere, with carbon. Based on these results, the sponsors of the sae crp 1234 have concluded that hfo1234yf can be used. 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. Honeywell announces major investments to increase hfo1234yf. 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. 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. These refrigerants are unsaturated hfcs with a chemical double bond. Hfo 1234yf is a pure compound which is highly energy.
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. Lccp calculations were done in several key cities representing different climatic regions of the world using the greenmac lccp 2007. Comparison between hfc4a and alternative refrigerants. Honeywell offers r4a, the industry standard for mobile ac, as well as solstice yf r1234yf, a near dropin replacement for 4a. Hfo1234yf is a new low global warming refrigerant that has the. New mobile air conditioning fluid hfo1234yf in car. 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. For chill applications r450a has a gwp of 601 and is nonflammable. 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. R 1234yf, or hfo 1234yf is soon to be one of the most popular refrigerants in the world. Honeywell reaffirms safety of new lowgwp automotive. Opteon yf is the chemours brand name for hfo1234yf refrigerant, also referred to as r1234yf. 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. 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.
Automakers around the world can now meet eu low gwp requirements for auto air conditioning refrigerant with solstice yf. Solstice yf refrigerant r1234yf honeywell hfo1234yf is a replacement for r4a as a refrigerant in automotive air conditioners. The professors lesson on hfo, hc refrigerants 20141201. 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. Nextgeneration refrigerant delivers low gwp dupont. Dupont codeveloped hfo1234yf in response to europes mac directive, and the company markets and sells the refrigerant under the name opteon yf.
From 1 january 2017, this ban will be extended to all new vehicles. Low gwp refrigerants understanding gwp, ghg, odp and. R1234yf, 1234yf refrigerant honeywell, 8 oz solstice yf. Apr 24, 20 dupont codeveloped hfo1234yf in response to europes mac directive, and the company markets and sells the refrigerant under the name opteon yf. Hfo1234yf hydrofluoroolefin, 2,2,2,3 tetrafluoroprop1ene enables carmakers to meet eu low gwp requirements. Minor, barbara and spatz, mark, hfo1234yf low gwp refrigerant update 2008. With the very low gwp of hfo 1234yf, the overall carbon footprint of vehicle. 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. Hfo1234yf has a global warming potential gwp of less than 1, compared to. 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. Hfo r1234yf has a gwp of just 4, providing substantially lower direct greenhouse gas emissions than r4a systems. Experimental analysis of r1234yf as a dropin replacement for. Mac lccp 2007 model was used as the basic foundation for this analysis. Can solstice yf refrigerant r1234yf honeywell hfo1234yf is a replacement for r4a as a refrigerant in automotive air conditioners.
In fact, it is the most common refrigerant gas in mobile air conditioning mac systems. Starting in january 2011, all new vehicle types must have an air conditioning refrigerant with a global warming potential gwp below 150. 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. With a gwp of 4, dupont opteon yf hfo1234yf refrigerant delivers 97. Engineers are currently being challenged to design mac systems using alternate low gw. Environmental protection agency epa allows automakers to receive credits for using hfo1234yf. Hfo1234yf developmental test results have no impact on atel value. 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. 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.
In the eu, low gwp refrigerants have a gwp of 150 or less. 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. Hfc refrigerants are composed of hydrogen, fluorine and carbon atoms connected by single bonds between the atoms. The transition from hfc 4a to a lowgwp refrigerant in. Legislated regulations have dictated that an alternative must be found at least for the european automotive market. Hfo1234yf is a nonozone depleting, low global warming potential. Hfo1234yf and hfc152a are listed as acceptable for use in mvacs subject to use conditions by the u. R4a has a global warming potential gwp of 1430, creating direct greenhouse. July 9, 2015 chemours fluoroproducts announced that it has doubled the supply of lowgwp opteon yf hfo1234yf refrigerant in. 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. 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. The low global warming potential gwp refrigerants emerging today can be grouped into several categories. Hfo r1234yf has a gwp of just 4, providing substantially lower direct greenhouse gas. 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.
R1234yf, 1234yf, r1234 refrigerant honeywell, 10 lb solstice. Environmental protection agency epa allows automakers to receive credits for using hfo 1234yf. 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. 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.
Lccp calculations were done in several key cities representing different climatic regions of the world using the green mac lccp 2007 model developed by. In response, the 2006 eu mobile air conditioning mac directive mandates. Honeywell reaffirms safety of new lowgwp automotive refrigerant. Chemours doubles chinabased hfo1234yf supply to meet. Aug, 2014 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. It thus significantly reduces the carbon footprint of refrigeration systems over the total lifetime. The first hfo, jointly developed by dupont and honeywell, is hfo 1234yf which is sold under the brand names opteon yf and solstice yf. Synthesis procedure, chemistry, applications and con. Latest options for replacing hfc4a refrigerant in macs. 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. R1234yf, or hfo1234yf is soon to be one of the most popular refrigerants in the world. Many automakers have engineered their vehicles for hfo1234yf because they saw.
Nearly half a million cars are on the road today using hfo1234yf. How is the refrigerant hfo1234yf different from r4a. Solstice yf refrigerant is a near dropin replacement for r4a in automobile a c applications, helping automakers around the world comply with eu low gwp requirements. This is based on the mac directive 200640eg, passed in july 2006. Working with industry leaders, leading oems, and customers, arkemas hfo developmental solutions offer a balance of performance benefits and reduced environmental impact. Comparison between hfc4a and alternative refrigerants in.
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