【中国新闻网】制冷业或迎绿色革命 中国团队打破不可能三角关系设计四步循环

Core Insights - Chinese scientists have discovered the "dissolution pressure card effect," breaking the long-standing "low carbon - high cooling capacity - high heat exchange" triangle in refrigeration materials, potentially leading to a green revolution in the refrigeration industry [1][3] Group 1: Climate Change and Energy Efficiency - Refrigeration technology is a cornerstone of modern society, contributing approximately 2% to China's GDP while consuming nearly 20% of electricity and generating 7.8% of carbon emissions [2] - The research team has focused on developing solid-state phase change refrigeration materials to address climate change and energy reduction needs, avoiding emissions from gas refrigerants [2] Group 2: Breakthrough in Refrigeration Materials - The research identified that ammonium thiocyanate solution exhibits remarkable thermal effects under pressure changes, with temperature drops of nearly 30°C within 20 seconds at room temperature, surpassing known solid-state phase change materials [3] - This breakthrough combines refrigerants and heat exchange media, addressing the core challenges of low carbon emissions, high cooling capacity, and high heat exchange efficiency [3] Group 3: Next-Generation Refrigeration Technology - Based on the "dissolution pressure card effect," the research team designed an efficient four-step cycle system that can absorb 67 joules of heat per gram of solution, with a theoretical efficiency of 77% [4] - This research lays a critical scientific foundation for developing efficient, environmentally friendly, and scalable next-generation refrigeration technologies, with significant potential in large data center thermal management [6]