07 September 2023
Two of the sessions during the IEA Chicago Heat Pump Conference focused on reducing the global warming
impact of refrigerants, specifically R-410A, through the use of alternatives with lower global warming
potential (GWP). The papers presented explored various possibilities using thermodynamic calculations,
system modeling, and experimentation. The adoption of R-32 by manufacturers for heat pumps was
discussed, but there was recognition of the need for even lower-GWP fluids in the future.