Cooling the Data Center

A Layman’s Explanation of the Role of It Racks in Cooling Your Data Center

Cooling of X-Ray Emitting Gas by Heat Conduction in the Center of Cooling Flow Clusters

We study the possibility that a large fraction of the gas at temperatures of ∼ 10 K in cooling flow clusters cools by heat conduction to lower temperatures, rather than by radiative cooling. We argue that this process, when incorporated into the so-called “moderate cooling flow model,” where the effective age of the intracluster medium is much lower than the age of the cluster, reduces substant...

Transforming Cooling Optimization for Green Data Center via Deep Reinforcement Learning

Cooling system plays a key role in modern data center. Developing an optimal control policy for data center cooling system is a challenging task. The prevailing approaches often rely on approximated system models that are built upon the knowledge of mechanical cooling, electrical and thermal management, which is difficult to design and may lead to suboptimal or unstable performances. In this pa...

Energy Efficient and Lower Capital Cost – an Alternative Data Center Cooling Strategy

A standard air cooled data center is a rare phenomenon. Generally each one is individually designed, with hundreds of different component combinations. They can also be energy hogs. Cooling system power consumption in older data centers is typically 100% or more of the IT load. While energy efficiency has improved recently and Power Utilization Effectiveness (PUE) values – the ratio of total en...

Coordinating Liquid and Free Air Cooling with Workload Allocation for Data Center Power Minimization

Data centers are seeking more efficient cooling techniques to reduce their operating expenses, because cooling can account for 30-40% of the power consumption of a data center. Recently, liquid cooling has emerged as a promising alternative to traditional air cooling, because it can help eliminate undesired air recirculation. Another emerging technology is free air cooling, which saves chiller ...