28 Oct '16, 1pm

Environmentally-friendly coolant raises flammability concerns:

In the wake of the agreement reached between 197 countries in Kigali, Rwanda on October 15 to phase out the use of climate-harming hydrofluorocarbons, or HFCs, new concerns have arisen over a replacement coolant compound known as HFO-1234yf. HFO-1234yf, which is manufactured by Honeywell and Chemours, is already a standard coolant in many new cars in the European Union and the United States. The compound breaks down more quickly than HFCs, which makes it one of the few existing coolants in compliance with the Kigali agreement. But 1234yf is, according to this New York Times story, ten times more expensive than HFC – and also mildly flammable. Honeywell emphatically disagrees and issued the following statement to BUILDER from a company spokesperson: “The safety of HFO-1234yf has been confirmed by respected third-party organizations, including SAE International, the most res...

Full article: http://www.ecobuildingpulse.com/news/environmentally-frie...

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