With global warming and the growing importance of energy efficiency, the trends in cooling systems are focused on the following areas:
1. Green and sustainable development: There is a growing international demand for environmentally friendly cooling systems. This includes the use of low-temperature energy, the utilization of renewable energy sources, and the reduction of greenhouse gas emissions. New technologies and innovative designs are driving cooling systems in a more environmentally friendly and sustainable direction.
2. Energy Efficiency Improvement: Energy conservation and efficiency are important directions in the development of cooling systems. A new generation of cooling equipment and control systems are emerging to improve energy efficiency and reduce energy consumption. The application of intelligent control and optimization algorithms also helps to achieve more efficient cooling system operation.
3. Refrigerant Substitution: Due to concerns about greenhouse gases, the international community is phasing out refrigerants that are harmful to ozone layer depletion and global warming, such as Freon. The R&D and application of alternative refrigerants have become the focus of development, including natural refrigerants and low GWP (Global Warming Potential) refrigerants.
4. Intelligence and automation: With the rapid development of IoT and AI technologies, the degree of intelligence and automation in cooling systems is increasing. The application of smart sensors, data analytics and predictive models enables cooling systems to monitor and optimize operations in real time, improving efficiency and reliability.

Overall, the state of development of international cooling systems is moving towards green, sustainable, efficient and intelligent to address climate change and energy challenges.
