PartagerNew NIST screening method for refrigerants
Researchers from the US National Institute of Standards and Technology (NIST) developed a computational method to identify candidate low-GWP refrigerant fluids. The method identified 1234 promising low-GWP chemicals among 56 203 considered.
Researchers from the US National Institute of Standards and Technology (NIST) developed a computational method to identify candidate low-GWP refrigerant fluids.
The method identified 1234 promising low-GWP chemicals among 56 203 considered.
Among these, only 60 had low enough boiling points to be suitable for common refrigeration equipment.
The ongoing NIST project is a response to interest in alternative refrigerants in the US air-conditioning, heating and refrigeration equipment manufacturing industry, which ships USD 30 billion annually, according to the US Bureau of the Census.
The GWP was assessed thanks to the combination of calculations of the compound’s radiative efficiency (a measure of how well it absorbs infrared radiation) and its atmospheric lifetime.
Additional screening features included toxicity, flammability, stability and critical temperature.
The method identified 1234 promising low-GWP chemicals among 56 203 considered.
Among these, only 60 had low enough boiling points to be suitable for common refrigeration equipment.
The ongoing NIST project is a response to interest in alternative refrigerants in the US air-conditioning, heating and refrigeration equipment manufacturing industry, which ships USD 30 billion annually, according to the US Bureau of the Census.
The GWP was assessed thanks to the combination of calculations of the compound’s radiative efficiency (a measure of how well it absorbs infrared radiation) and its atmospheric lifetime.
Additional screening features included toxicity, flammability, stability and critical temperature.