Next Generation Refrigerant Debate – CO2 v HFC1234yf and HC solutions… — Volkswagen 2017

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Next Generation Refrigerant – CO2 v HFC-1234yf and HC solutions

It is now clear the high GWP HFC-134a refrigerant gas has an use-by date, and debate is over the choice of the next  refrigerant in the very large vehicle air conditioning market, as deadlines for phasing out R-134a in Europe.

See below for the Du Pont but first here’s a summary of on CO2 solutions.

Hydrocarbons – the sidelined

Although it seems to be not widely hydrocarbon refrigerants (a blend of and propane/R-290) have been in millions of vehicles since 1993, particularly in the USA and Australia, and have been no documented of fires arising from the of hydrocarbon refrigerant in existing

Given the many benefits by hydrocarbons designed for use in existing or R-12 systems outlined in the page, it is perplexing that are not in more widespread use in spite of to discourage their use through of the fear factor associated the flammable properties of hydrocarbons.

Now that the science is telling us the of HFC global warming emissions is times greater than understood (see news the imperative to adopt all available to replace HFCs can no longer be

The Alliance for CO2 Solutions is an ad-hoc of organisations supporting the use of “CO2″ in car air By recycling waste CO2 as a natural we are turning part of the CO2 problem the solution. The Alliance aims to latest updates on CO2 Technology in an manner, thereby enabling the industry to make the best for car air conditioning.

Acknowledging the urgency to act now the most severe consequences of warming, the Alliance for CO2 Solutions a technology available today could save millions of of greenhouse gas emissions to the atmosphere. air conditioning is also the most and cost-effective option for cars. See the page for a comprehensive list of articles.

Recent tests by Engineering assessed the performance of refrigerants in case of a vehicle end collision. While CO2 would be at different temperature ranges, the new HFO-1234yf will significantly the risk of fire, Obrist

To shed light into the of working fluids for Mobile Air Obrist Engineering assessed the associated with different regarding their flammability. an air conditioning system from a Lupo, the company compared refrigerants, R134a, R744 and HFO-1234yf, under realistic simulating a vehicle front end where the mixture of refrigerant and oil leak. Refrigerants were at different temperature ranges, (C), 800°C, and 600°C. As medium PAG oil ND8 (135ml for all tests) was and a separate flammability test to the was also conducted (see 6 below). [continues]

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Significant Environmental Benefits of New Refrigerant Recognized by Global OEMs

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Wilmington, DE (Vocus/PRWEB ) 18, 2008 –- The Society of Automotive (SAE) International Cooperative Program, sponsored by major manufacturers including Chrysler, General Motors, Fiat, Land Rover, Hyundai, Renault, and Toyota, recently a report summarizing results of its evaluation of low global warming (GWP) refrigerant, hydrofluoro (HFO)-1234yf, which was co-developed by The report validated that is safe to use in mobile air conditioning, and of all the proposed alternatives considered, has significant environmental benefits. The concluded HFO-1234yf offers greatest potential to meet and consumer needs.”

“DuPont is that SAE International and leading manufacturers have recognized the of HFO-1234yf,” said Cynthia C. vice president and general – DuPont Fluoroproducts. “HFO-1234yf has a lower global warming than the R-134a refrigerant today, and the best overall climate performance globally, makes it the preferred environmental Since it is a near drop-in for R-134a, it is also a practical keeping costs down for automakers and consumers at a critical

At a recent meeting of the Mobile Air Climate Protection Partnership, O. Andersen of the U.S. Environmental Agency Climate Protection Division said, “All but participants agree that is the refrigerant-of-choice to replace HFC-134a in vehicle air conditioning. The best is that companies making 70 of air conditioned vehicles sold already consider R-1234yf to be the superior choice.” An announcement of is expected in February 2009 is aimed at accelerating the commercial of improved air conditioning systems in the States and global markets HFO-1234yf.

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DuPont estimates the use of refrigerant in new cars has the potential to more than 590 million (about 2,200 million of fuel annually – the equivalent of approximately 1.5 million cars off the each year, based on cooling and energy performance and adoption of HFO-1234yf by the year

Because of the lead times for new car designs, global automotive and suppliers have been with industry experts and test laboratories since when the first SAE International Research Program (CRP) was to investigate the safety and performance of for use in mobile air conditioning.

Based on the findings of the SAE International CRP and pending commercial agreements, is expected to replace R-134a in air conditioning systems as early as when a European Union directive requiring its phase out for all new vehicles goes into The phase out will be complete by in the EU, when R-134a will be in all new cars. Autos and light will be required to use refrigerants a GWP value lower than HFO-1234yf has a GWP value of 4.

– one of the first companies to publicly environmental goals 19 years ago – has its sustainability commitments beyond footprint reduction to include targets for both revenue and and development investment. The goals are directly to business growth, to the development of safer and environmentally new products for key global markets.

DuPont is a science-based products and company. Founded in 1802, puts science to work by sustainable solutions essential to a safer, healthier life for everywhere. Operating in more 70 countries, DuPont offers a range of innovative products and for markets including agriculture and building and construction; communications; and

Author Information

Dan Turner

du Pont de Nemours and Company, Inc

Volkswagen 2017
Volkswagen 2017
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