Introduction to Refrigerants:
Refrigerants are the primary cooling agents in various cooling systems like air conditioning and heat pumps.
They transfer heat from a lower temperature area to a higher temperature area, enabling continuous cooling.
Understanding the refrigeration cycle is crucial as it involves heat absorption and release by refrigerants.
Thermodynamic Properties:
Refrigerants transition between liquid and vapor at low temperatures.
This phase change allows efficient heat transfer within cooling systems.
A2L Refrigerants Overview:
A2L refrigerants are characterized by low toxicity, low flammability, and environmental friendliness.
Examples: R-1234yf, R-1234ze, R-454C, R-455A, R-454A, R-454B, R-447A, R-32, and R-452B.
The AIM Act (2020) supports the phase-down of HFCs and encourages the transition to A2L refrigerants through EPA regulations.
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