The U.S. Air Conditioning, Heating and Refrigeration Institute (AHRI) has launched a new research project to evaluate the energy produced by potential ignition sources in residential applications compared to the minimum ignition energies of A2L refrigerants.
Low-GWP refrigerants are generally well-characterized in terms of their LFLs (lower flammability limits), heats of combustion, and flame speeds. However, there is a lack of knowledge regarding their susceptibility to ignition from sources commonly encountered in household and industrial environments, such as open flames, electric sparks, or hot surfaces.
The results of the research are expected to be useful for expand the existing risk assessment studies of A2L refrigerants by providing further detail.
Source : AHRI