It is a mixture of R32, R125, R1234yf, R134a and CO 2 with a GWP of 1494. replace the R-134a GWP=1300 Solstice yf GWP* < 1 Auto A/C, Vending, Refrigerators Solstice ze GWP* < 1 Chillers, CO 2 Cascades Refrigerators R-123 GWP= 79 Solstice zd GWP* =1 Centrifugal Chillers High temperature heat pump Solstice Blends Non Flammable (ASHRAE A1) Mildly Flammable (ASHRAE A2L) Examples of potential app. Since 2013 a new mainstream HFO refrigerant, R1234yf, has begun to replace R134a. The results show that the refrigerant-side overall heat transfer coefficient of HFO-1234yf is 18-21% lower than that of HFC-134a, and the pressure drop is 24% and 20% smaller than HFC-134a during condensing and evaporating processes, respectively. It has low volume in a vehicle, and low impact flammability. Other than new car manufacturers over the last few years having switched to 1234yf, it's remained in use ever since. R-1234yf has been designated as MILDLY flammable. Each of the above-listed refrigerants has a global warming potential rating as well as an ozone depletion rating, and as of yet, the HCO-1234YF is the Depending on who you are this could be a big deal or it couldnt matter at all. A large choice of products. Click to see full answer Also, is r134a a HFC? is ultra-low, with a rating of less than 1. It breaks down chemically in the atmosphere after just 11 days, compared to 13 years for R134a, according to research by Chemours. Years later, R-134a was found to contribute to global warming, and now it too is being phased out . However, there are notable differences between the two They have no moving parts. The previous standard R-134a has a Global Warming Potential (GWP) of 1300 and R-1234yf's GWP is less than 1. 1234YF is better for the environment with a lower Global Warming Potential while 134a, is a greenhouse gas that is as harmful as carbon dioxide. And, despite some opposition in Germany, the HFO R1234yf is available to replace R134a in vehicle air conditioning systems. The difference is the two are significantly different when it comes to the harmful effects on the gasses contributing to global warming. That means that 1234yf is rated as mildly flammable. Compared to other liquids/chemicals/gases in a shop, it is an EXTREMELY slow moving flame. Claimed to be more environmentally friendly, it is also a lot more expensive. As R134a is being phased out of the auto industry, you may have heard of the improved version of tetrafluoroethane: 1234yf refrigerant. The pressure/temperature curves for R-1234yf and R-134a are very similar. Bottom line, R134a simply doesnt cool as well as R12. (Your A/C System). Operating Pressure/Temperature Differences, The pressure/temperature curves for R-1234yf and R-134a are very similar. For Interdynamics Artic Automotive Refrigerant R-134a. Our expertise and dedication enables the FJC team to offer an aftermarket service experience that is unrivaled in the automotive air-conditioning industry. The results show that the refrigerant-side overall heat transfer coefficient of HFO-1234yf is 18-21% lower than that of HFC-134a, and the pressure drop is 24% and 20% smaller than HFC-134a during condensing and evaporating processes, respectively. Because R1234yf is mildly flammable, shops should not just use an old R134a machine with fitting adapters; it must be specifically designed to SAE Standard J2851, which applies to recovery-only machines. Red and blue service hoses, the fittings are 12mm O Ring fittings male with a hexagon nut, (R134a is acme female. The simulated air conditioning system consists of a multi-louvered fin and flat-plate type evaporator, a wobble-plate type compressor, a mini-channel parallel-flow type condenser and a thermostatic expansion valve. The name is a trademark name owned by DuPont (now Chemours) for any chlorofluorocarbon (CFC), Good A/C Performance and Maintenance saves Money . However, including the fact that it is flammable. Its complicated. It was also a pretty good propellant for aerosol cans. R-1234yf has been designated as MILDLY flammable. Enter R-1234yf. We have been working since 2001! R410As GWP is 2088, almost 50% more than R134a. After beginning its changeover to R-1234yf, Daimler (Mercedes-Benz) ran some new flammability tests last September, decided that the refrigerant did not meet its safety standards, discontinued its use and installed So, there is a continuos search on for refrigerants that do not have high global warming potential. In both cases, conversion was relatively easy, requiring a new or rebuilt (a quality rebuild for sure) compressor, a new dryer, and a new orifice tube/valve for R134A. GWP is a measurement of Greenhouse Gases and their effect on Global Warming. The performance characteristics of system including COP and cooling capacity have been studied with changing different parameters. We are managed exclusively by automotive air conditioning industry experts who take great pride in providing superior product with unparalleled service. It was later found that R-134a had a very high Global Warming Potential, or GWP, number. When you suspect a leak of R-134a in your air conditioning system, detection can be done by This new, colorless gas has only a minute impact on the atmosphere. By comparison, and as illustrated in the chart below, it has the significantly lowest flammability impact of the following common automotive fluids: gasoline, diesel, engine oil, transmission fluid, and power steering fluid. R134a has a GWP of 1430. This part is part of the line assembly and is designed to improve efficiency. As R1234yf is an A2L mildly flammable substance, SAE standards have been developed for hoses and couplings. There are a couple minor component changes in the Thermal Expansion Valves (replace orifice tubes or expansion valves) and Condensers, but overall the system will be familiar to anyone who works on A/C systems. The main reason why R-1234yf has such a low GWP number is because of the short atmospheric lifetime of 11 days. I have converted two vehicles from R12 to R134A, a 1974 Monte Carlo and a 1978 Suburban. R134A or HFC-134A became the accepted standard, because it has no potential of ozone depletion and has similar (but not equal to) cooling abilities to the R-12 and R-22 refrigerants. Also, at constant cooling capacity, the COP of HFO-1234yf is lower than that of HFC-134a by 1.3-5%, and at constant mass flow rate, the COP of HFO-1234yf is about 18% higher than that of HFC-134a. R1234yf also has the lowest flammability rating of any engine-component related liquid. FJC, INC. is a worldwide distributor offering a full line of automotive air conditioning products. The old R134a gas has been banned in new vehicles and a new gas the snappily titled R1234yf (full name 2,3,3,3-Tetrafluoropropene, or HFO-1234yf) replaces it. That is where R1234yf comes in. A lower GWP alternative to R-134a had to be found and thus we have the new 1234yf. HFO-1234yf has a global warming potential (GWP) of less than 1, compared to 1,430 for R-134a and 1 for carbon dioxide. Unlike HFCs and CFCs, which take decades to decompose, HFO-1234yf does not persist in the atmosphere. As of 2018, 50% of new vehicles from "original equipment manufacturers" (OEMs) are estimated to use HFO-1234yf. The substitute that we used for R-12 was the new HFC called R-134a. Some machines will simply be described as spark free and thats OK, but the holding cylinder must also be rated for flammable gases. R134a has no ozone depletion potential but it can cause global warming. No NO NO a thousand times NO. Quite simply, vehicles using highly energy-efficient HFO-1234yf The addition of CO 2, however, leads to a distinct temperature glide, which may cause certain limitations for the application and places Our support team is laser-focused on continually surpassing customer expectations through exemplary responsiveness, efficiency, economy, courtesy and continuous improvement. Having a volume of R134a in atmosphere is the same as about 1500 times that volume of CO2 in atmosphere when it comes to global warming. "There's some kind of hullabaloo brewing over a new automotive refrigerant R1234yf, supposedly replacing the current R134a. This simply means that it could ignite if it comes in contact with an open flame. As illustrated in the chart below, the curves below run together nearly throughout the curve, only slightly breaking paths at around 250 psig/150 degrees and above. The obvious most practical reason is that R-134a and R-1234yf do have many similar properties. As illustrated in the chart below, the curves below run together nearly throughout the curve, only slightly breaking paths at around 250 psig/150 degrees and above. Ghana welcomes green cooling initiative, System efficiency more important than GWP, Conversion to ozone-safe and low GWP technologies and substances in HVAC&R, Performance comparison of R1234yf and R134a, Courses on HVAC&R alternative eco-technologies, Courses on prevention of illegal ODS and F-gas import and export, ODS destruction and recovery technologies, BITZER water-cooled condensers: when efficiency meets reliability. Performance of R1234yf and R134a is examined in a heat pump bench tester under the conditions for mobile air-conditioners (MACs). Regarding thermodynamics, the differences to R410A are comparatively small. In 1928 Thomas Midgley Jr. created the first non-flammable, non-toxic chlorofluorocarbon gas, Freon (R-12). YF is tougher on evaporators then 134a and this new standard is to prevent wear and tear and premature failure. At the heart of FJC is a knowledgeable, friendly team comprised of Automotive Air Conditioning industry experts and thought leaders. The R1234yf molecule in all its glory. But this new refrigerant was worse than R-134a in several very important categories. Another difference is that yf Evaporators must meet SAE Spec J2842, which was not an issue in R-134a systems. We will always strive to earn the highest level of approval from all our customers as we continue to service the needs of the automotive air conditioning market. R1234yf has a GWP of only 4 and reduces global warming impact by 99.7 percent compared with R134a. A/C Honda refrigerant filling quantities R134a an 1234yf. This means that one kilogram of R1234yf released to atmosphere has a significantly lower greenhouse effect than a kilogram of carbon dioxide. R-134a ; 1: Boiling Point -14.9F or -26.1C : 2: Auto-Ignition Temperature : 1418F or 770C: 3 : Ozone Depletion Level : 0 : 4: Solubility In Water : 0.11% by weight at 77F or 25C : 5 : Critical Temperature : 252F or 122C : 6: Cylinder Color Code : Light Blue : 7: Global Warming Potential (GWP) 1200 : Detection of Leaks. The latest refrigerant technology is R-1234yf. It would not be a good thing to get it too close to a spark plug wire or a hot exhaust manifold. Despite the high proportion of R32 and R1234yf, flammability is suppressed by mixing with R125, R134a and CO 2. but I add a bit of However, once A/C systems have been upgraded to R1234yf type refrigerants, A/C Compressors pre-filled with ND-oil 8 can no longer be used in the system. R134a systems operate at higher discharge-side pressures than R12, which can cause compressor seals to leak. Air Conditioning Products, Tools, Equipment Power Division. 2,3,3,3-Tetrafluoropropene, or R-1234yf (HFO-1234yf), is the latest market replacement for R-134a automotive refrigerants. The first vehicles using this product started arriving on the Australian market in 2014 and R1234yf will become increasingly prevalent as the global HFC phase-down gathers momentum. This colorless gas is being used as a replacement for R-134a as a refrigerant in automobile air conditioners. The molecule size of R134a is smaller than that of R12, so there was concern that R134a could leak out through the hoses and flare fittings that R12 systems used. Both are composed of hydrogen, fluorine and carbon atoms. Thats because R-134a is a hydrofluorocarbon (HFC) while R-1234yf is a hydrofluoro-olefin (HFO) refrigerant. We value the relationships we have built with our clientele in the United States and overseas markets. R12 - commercial industry standard - is flare female with a knurled nut). It's considered a hydrofluoro-olefin, or HFO, refrigerant. Flammability/Safety. R-134a has been in use for 15 years and there have been no documented cases where combustion of automotive refrigerants has resulted in injury or death. One of the compelling reasons R-1234yf was overwhelmingly chosen to replace R-134a in automotive air conditioning systems is because there are not really many differences between the way the systems are designed and work. The service ports in both systems are quick-connect, but they are taller in the yf systems to avoid cross-contamination. With so many options now available R134a has been targeted for phase-out in these applications in both Europe and the USA. Honeywell HFO 1234yf Cool for all concerned HONEYWELLS LOW GLOBAL WARMING POTENTIAL REFRIGERANT IS THE COOL CHOICE Honeywell Fluorine Products Europe B.V. R-134a and more than 500 years for carbon dioxide. So why no ban for R410A? Still, 134a was an improvement on R12 which has a staggering GWP of nearly 11,000 while 134a brought that number 1234yf is classified by the ASHRAE as a 2L flammable gas. R1234yf is composed of a combination of hydrogen, fluorine, and carbon atoms. This would be a backward retrofit with absolutely no benefit and potential disaster. Tech Talk Differences between R-1234yf and R-134a, Address: 101 Commercial Drive Mooresville, NC 28115, 3 Foot Refrigerant and Accessories Endcap, 4 Foot Refrigerant and Accessories Endcap, PRODUCT OF THE MONTH2458/2459 R-1234yf Refrigerant Oil, Dont Forget to Flush! Some people contend that there are still issues with HFO-1234yf that needs addressing. This substance is remarkably similar in cooling performance to its predecessor while having a global warming potential (GWP) of 1 compared to R-134as GWP of 1,430. HFO 1234yf Refrigerant Replacing R134a Now you know a bit more about HFO-1234yf, that it may replace R134, and why that is so. It has a very low pressure rise and the flame is very slow moving (less than 10cm/sec.) A final difference is that most (though not all) R-1234yf cars will have a Suction Line Heat Exchanger. Developed countries basically ditched Freon-12 in 1996, and developing countries boned it in 2010, and today Two different conditions have been considered in this program for the cycle analysis: for the first state, the cooling capacity is taken as constant, and for the second state the refrigerant mass flow rate is considered fixed. In the event of a car fire, 1234yf -- like other materials found in an automobiles such as the current refrigerant, R-134a -- will burn and release hazardous materials. The other new alternative to R134A is HFO-1234YF, which has similar properties to R134A but meets the new European global warming standards. To ask this question you appear to have no knowledge of refrigerants. It is important to note that it does have a low burning velocity and low heat or combustion. The cost for this refrigerant is about 5 times more than R134 and requires special equipment to recharge so it is important to keep it leak free. The first air conditioners and refrigerators employed toxic or flammable gases, such as ammonia, sulfur dioxide, methyl chloride, or propane, that could result in fatal accidents when they leaked.. It's more flammable, more toxic, and more expensive. While mixing A/C Compressor oils is usually not recommended, as it can lead to A/C Compressor damage and failure, the new ND-oil 12 can be used with both R1234yf and the old R134a type refrigerants. According to the EPA, while R134a does not deplete the ozone layer, (as R12 did) it has an extremely high GWP (Global Warming Potential) that is approximately 1,400 times greater than that of CO2. DuPont and Honeywell developed R-1234yf to meet the global warming potential (GWP) requirements. - High Quality car service equipment. I understand it's much more expensive, plus it's a flammable gas, unlike R134a, which won't burn. R134a R1234yf R134a R1234yf 65 25-35 22-32 135-155 128-142 70 30-40 27-38 145-160 140-155 75 35-45 33-43 150-170 148-166 80 40-45 40-45 175-210 175-210 85 45-55 46-56 225-250 227-253 90 45-55 46-56 250-270 255-275 95 50-55 53-57 275-300 280-310 100 50-55 53-57 315-325 325-342 105 50-55 53-57 340-345 350-360 * This chart should be used as a reference only please contact the This state-of-the-art Freon freezes like the North In a recent study A comparative study on the performance of HFO-1234yf and HFC-134a as an alternative in automotive air conditioning systems, S. Daviran et al, have simulated an automotive air conditioning system and compared the performance of HFC-134a and HFO-1234yf as drop-in alternatives to HFC-134a. R152A is slightly less dense than R134A, so it can theoretically contribute to better fuel economy as well.
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