【新华社】我国科研人员发现“溶解压卡效应” 开辟绿色制冷新路径

Core Insights - The research team from the Institute of Metal Research, Chinese Academy of Sciences, discovered the "Dissolution Pressure Lock Effect," which opens new pathways for next-generation green refrigeration technology [1] Group 1: Research Findings - The study focuses on solid-state phase change refrigeration materials that avoid gas refrigerant emissions by utilizing pressure or magnetic field changes for heat absorption and release [1] - The team found that ammonium thiocyanate solution exhibits remarkable thermal effects under pressure changes, with a temperature drop of nearly 30 degrees Celsius within 20 seconds at room temperature, significantly outperforming known solid-state phase change refrigeration materials [1] - The "Dissolution Pressure Lock Effect" extends the pressure lock effect to dissolution heat, allowing for efficient heat transfer through the fluidity of the solution while providing substantial cooling without carbon emissions [1] Group 2: Engineering Applications - Based on this effect, the team designed an efficient four-step cycle system: pressurization and heating, heat dissipation to the environment, depressurization and cooling, and heat transfer, achieving a theoretical efficiency of up to 77% with each gram of solution absorbing 67 joules of heat [2] - This research presents a novel refrigeration principle with potential applications in industrial cooling systems, data center heat dissipation, and specialized refrigeration equipment [2]