The fluids included several that did not exist when the original Shah correlation was developed in 1979 (R-32, R-123, R-125, R-134a, R-142b, R-404A
, R-410A, and R-507).
However, if society eventually demands non-flammability as a safety requirement, the author would suggest limits of ~<200 GWP for R-123 applications, ~<600 GWP for R-134a applications, and ~<1600 GWP for R-404A
and R-22 applications given the current identified candidates.
The results of this work are based on four experimental tests at a constant compressor speed (1450 rpm) using the refrigerant R-404A
, which are presented in Tables A2-A5 in the appendix of this paper.
Solstice N40 has a global warming potential (GWP) that is 66 percent lower than R-404A
2]-based refrigeration systems was compared to the baseline R-404A
multiplex DX system (System 1).
3[degrees]C) was maintained for all the test conditions; however, cooling capacity and energy efficiency ratio (EER) for R-404A
and its alternative refrigerants are reported at normalized 0[degrees]F (0[degrees]C) subcooling.
The results are based on four experimental tests using R-404A
as a refrigerant and with constant compressor speed (1450 rpm) in which the facility behavior, working with and without the liquid injection system, has been analyzed under an evaporating pressure variation test keeping the condensing pressure constant (18.
Thermo King's Smart Reefers for the new rail cars use R-404A
and have a 500-gallon fuel capacity, plus special temperature modulation and fresh air exchange for fresh produce.
All vessels today have some requirement for onboard refrigeration or climate control and the regulations are weighted against high-GWP refrigerants, with R-404A
amongst the hardest hit.
In addition to providing more than 60 percent reduction in GWP, extensive testing has shown that Opteon XP40 delivers superior energy efficiency compared with R-404A
The compressor calorimeter testing was conducted on R-404A
and its alternative refrigerants for a current production model R-404A
scroll compressor with nominal rated capacities of 23.
3] for HMBP applications and a standard R-404A
compressor of 6.