High-Density Cooling for the AI Era: Adapting Data Centers to 50–100 kW/Rack Workloads

The digital landscape is undergoing a transformation driven by the exponential growth of Artificial Intelligence (AI) and High-Performance Computing (HPC). This evolution is defined by an insatiable demand for processing power, resulting in a crisis of density within modern data centers. Racks that once consumed 5–10 kW are now routinely deploying 50 kW, 80 kW, and even 100+ kW of power. This monumental shift has rendered traditional air-cooling methods obsolete.This book is born from the imperative to address this thermal challenge head-on. It serves as a comprehensive guide for navigating the transition from air-centric to liquid-centric cooling architectures. We move beyond theory to provide practical insights into the core technologies—Direct-to-Chip (D2C) Liquid Cooling, Single-Phase Immersion (SPI), Two-Phase Immersion (TPI), and Hybrid Systems.Our aim is to empower data center professionals to design, deploy, and manage the next generation of infrastructure required to support the AI revolution. The decisions made today—regarding fluid dynamics, facility retrofits, and waste heat reuse—will determine the efficiency, sustainability, and future capacity of tomorrow's digital economy. Read more