refrigeration and air conditioning (RAC)
This guide explores how modern technologies and practices are making more efficient, sustainable, and "better" for both users and the environment . 1. Key Efficiency & Performance Guidelines
Conclusion
The Future is Cool: Why Refrigeration and Air Conditioning Technology is Getting Better
- Magnetic Refrigeration: Uses the magnetocaloric effect. A magnetic field is applied to a special metal (gadolinium), heating it. When the field is removed, it cools below ambient temperature. Pros: No refrigerants, 25% more efficient. Cons: Expensive magnets.
- Thermoacoustic Cooling: Uses high-amplitude sound waves in a pressurized gas to create a temperature gradient. Pros: No moving parts, no lubricants. Cons: Loud.
- Electrocaloric (EC) Polymers: Applying an electric field to a polymer film causes it to heat up; removing the field causes cooling. Pros: Solid-state, flexible form factors (wearable cooling).
1. Better for the Planet: The Refrigerant Revolution