R152a.Com
R-152a Refrigerant Information
In an effort to reduce greenhouse gas emissions from automotive air conditioning systems, refrigerant 152a (difluoroethane) is among several chemicals being considered as a replacement for R134a. R-152a has an average global warming potential of just 130, which, in comparison, has roughly ten times less GWP than R134a.
Early OEM testing with R152a has been promising. The chemical has similar properties to R134a, so, design engineers have been able to test the refrigerant in current production systems with only minor modifications. Since R-152a is rated flammable, special leak detection sensors and emergency release valves will have to be built into the systems for occupant safety. Flash fire is not the only concern with R-152a. If ignited, R-152a decomposes into hydrogen fluoride which can be deadly toxic to the human body.
R-152a is flammable. It should only be used in systems that are design certified for use with R-152a.
Currently, CO2 (R744) holds favor as an automotive refrigerant over R152a. It has the lowest GWP and carries with it less concern of toxicity and flammability. Experimental CO2 systems run at much higher pressure than current systems so component bursting and service safety are some of the reported design challenges.
While Visteon, Valeo, Mercedes, and others are rushing to perfect their CO2 systems, we hope, from a service safety standpoint, lower pressure alternatives can be found.
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Latest News: EPA Proposes R-152a and CO2 AS Acceptable Refrigerants... Read entire story |
Below, you will find links with more information on R-152a.
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Difluoro-1,1-ethane (R152A), Physical properties, MSDS ... ir Liquide has assembled data on the compatibility of gases with materials to assist you in evaluating which products to use for a gas system... encyclopedia.airliquide.com/encyclopedia.asp?GasID=91 |
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Investigation of R152a and Hydrocarbon Refrigerants For R152a or a hydrocarbon refrigerant to be suitable as an alternative replacement for R134a in a conventional motor vehicle air conditioner, it must meet certain criteria... www.delphi.com/pdf/techpapers/1999-01-0874.PDF |
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Automotive Engineer - Delphi air conditioning The company considers both coolants as viable options for the future. Its CO2 and R152a test vehicles were the best-performing entries in the Society of Automotive... www.ae-plus.com/Key%20topics/kt-interiors-news6.htm |
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