Refrigerant Flammability: A New Application of the Opposed-Flow Burner.
Refrigerant Flammability: A New Application of the
Opposed-Flow Burner.
(123 K)
Womeldorf, C. A.
NISTIR 5904; October 1996.
National Institute of Standards and Technology. Annual
Conference on Fire Research: Book of Abstracts.
October 28-31, 1996, Gaithersburg, MD, 145-146 pp, 1996.
Available from:
National Technical Information Service
Order number: PB97-153514
Keywords:
fire research; fire science; refrigerants; flammability;
burners
Abstract:
Due to concerns about the impact of cholorofluorocarbons
(CFCs) on the earth's ozone, new refrigerants are being
evaluated by the air-conditioning and refrigerant
industry to identify environmentally friendly
replacements. These alternative refrigerants are
primarily hydrofluorocarbons (HFCs) and
hydrochlorofluorocarbons (HCFCs); some of which, because
of the additional hydrogen atoms, are flammable. In
order to maintain the current requirement of
non-flammable refrigerants, optimized mixtures which
maximize efficiency while minimizing risk are desired.
Current methods of measuring of flammability for weakly
flammable refrigerants have a large uncertainty and
produce results which require operator interpretation.
This work presents an alternative approach with reduced
uncertainty and less operator interpretation.
