Modular Data Center Cooling Racks to Isolate Hot and Cold Aisles
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Solution Overview
Problem
Traditional cooling systems for data centers, such as CRAC units, are inefficient due to the mixing of hot and cold air, and pose risks with overhead piping, leading to potential leaks and earthquake hazards, necessitating a more efficient and secure cooling method.
Innovation Solution
A modular cooling system comprising flexible tubing and cooling racks that draw warm air from hot aisles, cool it, and exhaust cooled air to cold aisles, with a distribution box and controller to manage coolant flow and environmental conditions, allowing for scalable and flexible placement within the data center.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If CRAC units are used to cool data centers, then cooling capacity is provided, but hot and cold air mix which reduces efficiency
Solution Approach 1:
The cooling system is segmented into multiple independent cooling racks that can be distributed throughout the data center, with each rack cooling a specific zone. This eliminates the need for large centralized CRAC units and prevents hot/cold air mixing by providing localized cooling at the source of heat generation.
Solution Approach 2:
Cooling capacity is distributed locally to match the heat generation patterns in different zones of the data center. Each cooling rack provides cooling precisely where needed, creating locally optimized thermal environments rather than attempting to uniformly cool the entire space, thereby preventing hot and cold air mixing.
2Ease of manufacture
If overhead piping is used for coolant delivery, then installation is simplified, but leak risks and earthquake hazards increase
Solution Approach 1:
Instead of delivering coolant overhead from the ceiling, the system inverts the approach by delivering coolant through the raised floor from below. This eliminates the earthquake and leak risks associated with overhead piping while maintaining installation simplicity through modular connections at floor level.
3Loss of energy
If cooling racks are positioned between equipment racks, then hot and cold aisles are isolated, but floor space is reduced
Solution Approach 1:
The cooling racks utilize the vertical dimension by extending from floor to ceiling, effectively isolating hot and cold aisles in the vertical space rather than requiring horizontal separation. This allows full utilization of floor space for equipment placement while maintaining effective airflow isolation through vertical partitioning.
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 system significantly reduces air mixing inefficiencies, decreases the need for humidification, and enhances scalability and earthquake resistance by eliminating overhead piping, while allowing for precise monitoring and control of cooling capacity.
Implementation Method 1
The cooling rack components can include a heat exchanger
Implementation Method 2
deliver chilled coolant to and receive heated coolant from coolant system components
Data Source
AI summary
A method of manipulating a cooling system of a data center includes designing a cooling system to address cooling needs in the data center, selecting components for the cooling system including one or more distribution boxes adapted to distribute coolant, one or more cooling racks, and flexible tubing to connect the one or more distribution boxes to the one or more cooling racks, assembling the components for the cooling system in the data center, operating the cooling system, identifying hot spots within the data center, and adjusting the location of one or more cooling racks in the data center based on the indentified hot spots in the data center.