nouvelles de l'entreprise One Minute to Know The Difference Between R454 Series Mixed Refrigerant Gas

One Minute to Know The Difference Between R454 Series Mixed Refrigerant Gas

I. R454A (Opteon XL40)
1. Composition and Physical and Chemical Properties
Composition: A mixture of R32 (35%) and R1234yf (65%), with a mass ratio of 35% R32 to 65% R1234yf.
Key Parameters:
GWP = 145 (96.3% lower than R404A)
Boiling Point -47.8°C, Critical Temperature 81.7°C, Critical Pressure 4.63 MPa
Safety Level A2L (Slightly Flammable), Temperature Glide 5.0K
2. Application Scenarios
Core Applications:
Replaces R404A and R22 for low-temperature cold storage, quick-freezing equipment, and industrial refrigeration systems.
Excellent performance in positive displacement, direct expansion medium- and low-temperature commercial and industrial refrigeration systems.
Performance Advantages:
Cooling capacity increased by approximately 11% compared to R404A, and COP (Cost of Use Percentage) increased by 9%. Compatible with POE lubricants, no compressor modification required.

II. R454B (Opteon XL41)
1. Composition and Physical and Chemical Properties
Composition: A mixture of R32 (68.9%) and R1234yf (31.1%), with a mass ratio of 68.9% R32 and 31.1% R1234yf.
Key Parameters:
GWP = 466 (78% lower than R410A)
Boiling point -50.9°C, critical temperature 77°C, critical pressure 4.4 MPa
Safety level A2L, temperature glide 5.2K
2. Application Scenarios
Core Applications:
Replaces R410A for residential and commercial air conditioners, heat pumps, and chillers.
In positive displacement compressor systems, it performs similarly to R410A, with similar cooling capacity but a 9.1% improvement in energy efficiency. Performance Advantages:
Discharge temperature is 12.7°C lower than R410A, reducing the risk of lubricant decomposition.
Recharge volume is reduced by 30%, lowering system costs.

III. R454C (Opteon XL20)
1. Composition and Physical and Chemical Properties
Composition: A mixture of R32 (21.5%) and R1234yf (78.5%).
Key Parameters:
GWP = 146 (96.3% lower than R404A)
Boiling point -45.5°C, critical temperature 81.7°C, critical pressure 4.63 MPa
Safety level A2L, temperature glide 6.0K
2. Application Scenarios
Core Applications:
Replaces R404A and R22 for ultra-low temperature commercial refrigeration (such as airline catering refrigeration systems).
Excellent low-temperature performance in cascade refrigeration systems, reaching temperatures down to -80°C.
Performance Advantages:
Energy efficiency is 3% higher than R404A, and operating pressure is 15% lower.
Under EU F-Gas regulations, it is not subject to quota restrictions and has a stable long-term supply.

IV. Comprehensive Comparison
Recommended Selection:
Environmental Protection Priority: R454C (GWP = 146) is suitable for regions with strict regulations, such as the EU.
Air Conditioning Systems: R454B is the best alternative to R410A, balancing energy efficiency and conversion costs.
Industrial Low-Temperature Systems: R454A offers significant performance advantages in quick-freezing equipment.

V. Safety and Implementation Key Points
Flammability Management:
All three are A2L rated and require upgraded leak detection systems (such as infrared sensors).
Single System Charge Limit: R454C is recommended to be no more than 11 kg/unit (for aviation applications).
Economics:
The procurement cost of an R454C system is 30% lower than that of a CO2 system, and long-term operation and maintenance costs are lower.
Due to the large market size of R454B replacing R410A, future price reductions are possible.
Replacement Paths:
R404A → R454A/R454C, R410A → R454B, R22 → R454C. VI. Industry Trends
Aviation: R454C has been adopted in German airline catering systems, improving energy efficiency by 50%.
Policy Drivers: The EU plans to completely ban refrigerants with a global warming potential (GWP) greater than 150 by 2030, and the R454 series will dominate the market.