Driven by the global "dual carbon" strategy, the refrigeration industry is undergoing a significant transformation. Carbon dioxide (R744), as a natural refrigerant, is replacing traditional fluorine products in cold chain, supermarket, industrial and other scenarios due to its environmental friendliness, high efficiency and wide applicability, becoming a common choice for some global leading enterprises.
#01
Compared with traditional hydrofluorocarbon (HFC) refrigerants, carbon dioxide (R744) has more environmental advantages
Carbon dioxide (R744) is a circulating substance in nature, with an ozone depletion potential (ODP) of 0 and a global warming potential (GWP) of only 1. Compared to traditional refrigerant refrigerants, it has a significant emission reduction effect. In the ultra-low temperature scenario of -50 ℃ to -30 ℃, the energy efficiency of the carbon dioxide (R744) transcritical cycle system is improved by more than 30% compared to traditional refrigerants. Its high unit volume refrigeration capacity (5-8 times that of conventional refrigerants) also significantly reduces the volume of the compressor and reduces equipment space occupation. Carbon dioxide (R744) is safe and stable, and even if leaked, it will not produce harmful gases, especially suitable for safety sensitive fields such as food and medicine. Its low viscosity characteristics improve the heat transfer efficiency of the system and have excellent compatibility with POE lubricating oil, reducing the risk of equipment corrosion.
#02
Four core application scenarios unlock industry potential
1. Cold chain logistics and pharmaceutical storage
Carbon dioxide (R744) performs excellently in ultra-low temperature cold storage at -50 ℃, ensuring precise temperature control throughout the entire process of vaccines, fresh produce, and more. The stacked CO2/NH3 system has been applied in multiple biopharmaceutical companies in China, achieving cryogenic storage at -60 ℃ level.
2. Supermarket energy-saving upgrade
After using carbon dioxide (R744) refrigeration for supermarket refrigerated shelves and energy-saving refrigerators, energy consumption is reduced by 20% -30%. More than 85000 carbon dioxide (R744) refrigeration vending machines have been put into operation in Europe, with compact systems and low maintenance costs.
3. Industrial precision temperature control
In scenarios such as explosion-proof areas in chemical plants and data center rooms, carbon dioxide (R744) achieves efficient heat dissipation through high pressure stability (with a transcritical cycle pressure of 7.38MPa), while avoiding the risk of flammable refrigerants.
4. High temperature heat pump system
The "temperature slip" characteristic of the supercritical cycle of carbon dioxide (R744) can produce hot water at temperatures ranging from 80 ℃ to 95 ℃, making it a new energy-saving solution in fields such as food processing and hotel heating. The heat pump has a high COP of 4.5.
As a professional refrigerant supplier, Lengwang Technology provides professional technical consulting and a stable product supply chain to assist enterprises in achieving low-carbon upgrades.
