Flexible Cooling Air Stacks for Data Center Heat Isolation
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Solution Overview
Problem
Existing cooling systems in data centers face inefficiencies due to non-uniform waste heat generation across different rack systems, leading to suboptimal heat removal and increased ambient temperatures as waste heat mixes with room air.
Innovation Solution
A cooling system that includes stacks with flexible portions to direct cooling air from rack-mounted systems to the ceiling, segregating it from ambient air, and a forced air system that channels air through racks with varying airflow rates and velocities to manage heat effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If cooling air is vented to the room ambient air above the racking systems, then the waste heat is dispersed into the room, but the ambient temperature in the room rises and creates short-cycling and other inefficiencies in cooling
Solution Approach 1:
The patent segments the cooling air flow path by introducing individual stacks for each rack-mounted component. Each stack creates a separate, dedicated channel that directs cooling air from its specific rack directly to the ceiling opening, preventing mixing with ambient air and eliminating the thermal short-cycling problem while maintaining effective heat removal
2Productivity
If uniform heat removal methods are applied to non-uniform waste heat generation sources, then the system is simple to implement, but the waste heat removal is not fully efficient and effective
Solution Approach 1:
The patent applies dynamics by making the stack configuration adaptable to each rack's specific heat generation characteristics. The flexible portion of each stack allows it to be independently adjusted and positioned according to the thermal load and airflow requirements of its associated rack, enabling optimized heat removal for non-uniform waste heat sources
3Loss of energy
If cooling air mixes with room ambient air before reaching vents, then the cooling air is distributed throughout the room, but waste heat transfers into the ambient air causing temperature rise
Solution Approach 1:
The patent extracts the waste heat from the general room environment by directing it through dedicated stacks that bypass the ambient air space. Each stack acts as an independent extraction pathway that removes heat directly from its source rack and transports it vertically to the ceiling, preventing the heat from mixing with and raising the temperature of the room's ambient air
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances heat removal efficiency by isolating waste heat from ambient air, reducing short-cycling and inefficiencies, and maintaining a stable temperature environment within the data center.
Implementation Method 1
a forced air system. The forced air system moves cooling air through computers in one or more rack systems in the computer room
Implementation Method 2
The flexible portion of the stack allows for movement and positioning adjustments
Data Source
AI summary
A cooling system for a computer room includes a forced air system. The forced air system moves cooling air through computers in one or more rack systems in the computer room. Stacks are coupled between the rack systems and the ceiling of the computer room. Each stack may include a flexible portion between an inlet portion and an exit portion of the stack. The stacks direct cooling air exiting from exit ports on the rack systems to openings in the ceiling.