Nytt kuldemedie for bil AC

04.12.07
På en konferanse i Torino om AC for biler ble det gitt ny informasjon om det nye kuldemediet HFO-1234yf

HFO-1234yf, a new fluid jointly developed by Honeywell and DuPont. The chemical companies emphasized that they do not support HFC-152a due to its flammability, but confirmed in their own presentation that HFO-1234yf would also be "mildly flammable". Therefore, under the ASHRAE designation for refrigerants HFO-1234yf would be classified as safety class A2 (lower toxicity, lower flammability), the same as R152a. Flammability tests are still under way. The companies did not, give details about the cost of the new refrigerant. HFO-1234yf is currently being evaluated by some manufacturers, including the Japanese carmakers (JAMA). Mr. Ikegami, speaking on behalf of JAMA, admitted, however, that long term toxicity tests for HFO-1234yf would not be finalized until end-2009.

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