Gree, a major manufacturer of air-conditioners, has indeed chosen to use R32 (difluoromethane) as the refrigerant gas in some of their air-conditioner models. There are several reasons why R32 has gained popularity as a refrigerant choice:
Environmental Considerations: R32 is considered a more environmentally friendly refrigerant compared to its predecessor, R410A (hydrofluorocarbon). R32 has a lower global warming potential (GWP) than R410A, meaning it has a reduced impact on climate change. It has a GWP of 675, which is significantly lower than the GWP of R410A, which is 2,088. By transitioning to R32, Gree aims to contribute to the reduction of greenhouse gas emissions.
Energy Efficiency: R32 has superior thermodynamic properties compared to R410A. It has a higher heat transfer coefficient, which means it can absorb and release heat more efficiently. This improved efficiency can lead to energy savings and more environmentally friendly operation of air-conditioning systems.
Safety Considerations: R32 has favorable safety characteristics. It is classified as an A2L refrigerant, which means it has lower flammability compared to some other refrigerants. While it is important to handle any refrigerant with care, R32's lower flammability rating provides an added safety benefit.
Regulatory Compliance: Many countries and regions have introduced regulations and standards to phase out or reduce the use of high-GWP refrigerants, such as R410A. By adopting R32, Gree aligns with these regulatory requirements and ensures their products meet the evolving environmental standards.
It's worth noting that technology and regulations continue to evolve, and manufacturers like Gree may choose different refrigerants based on the specific requirements of different markets and product lines. It's always advisable to refer to the manufacturer's official documentation or contact Gree directly for the most up-to-date information regarding their choice of refrigerants in air-conditioner models.