With the accelerated global energy transition and the rapid expansion of the digital economy, thermophysical challenges within high-density infrastructure have emerged as critical bottlenecks hindering performance enhancement. This symposium focuses on frontier scientific issues in heat transfer across diverse application scenarios, including energy storage systems, heat pumps, and data centers. The forum is dedicated to providing core support for the development of secure, high-efficiency, and sustainable thermal systems through theoretical innovations and technological breakthroughs at the level of thermal physics.