Hot Aisle Containment Cooling Canopy with Integrated Heat Exchange
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Solution Overview
Problem
Data centers face inefficiencies in cooling systems due to mixing of cool and warm air, and challenges in managing power and cables, leading to heat buildup and hot spots within equipment racks.
Innovation Solution
An air containment cooling system with a canopy assembly, including vertical and horizontal support members for coolant delivery, a heat exchanger coil, and fans to direct air, along with filler panels and cable management buses to contain and cool air within the hot aisle, providing integrated power distribution and cable management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If CRAC units discharge cold air into the data center room to cool equipment racks, then the equipment racks receive cooling, but the cool air mixes with room temperature air reducing cooling efficiency
Solution Approach 1:
The data center space is segmented into distinct thermal zones using hot aisle containment structures. The containment creates separate regions for hot exhaust air and cold supply air, preventing mixing between these air streams. This segmentation allows independent temperature control in each zone, improving overall cooling efficiency by delivering cold air directly to equipment intakes without dilution from room temperature air.
Solution Approach 2:
Hot exhaust air is extracted and contained within dedicated hot aisle containment structures. By separating the hot air pathway from the cold air supply pathway, the system prevents thermal mixing that would otherwise occur in conventional open-plan data centers. This extraction approach maintains distinct thermal boundaries and improves cooling efficiency.
2Area of stationary object
If CRAC units are positioned around the periphery of the data center room, then they provide cooling coverage, but they occupy significant floor space and require complex piping infrastructure
Solution Approach 1:
The cooling system transitions from a floor-based peripheral arrangement to an overhead suspended ceiling mounting configuration. By relocating CRAC units to the ceiling plane, the system eliminates the need for extensive floor piping infrastructure and reduces floor space occupation. This dimensional shift allows cooling units to be positioned strategically above hot aisles while delivering cold air directly to equipment intakes below.
Solution Approach 2:
The suspended ceiling structure serves multiple functions: it provides structural support for CRAC units, acts as a thermal barrier, enables cable routing, and facilitates air distribution. This multi-functional approach consolidates infrastructure requirements and reduces the need for separate piping systems, thereby reducing overall device complexity and floor space usage.
3Loss of energy
If hot aisle containment structures are implemented to prevent air mixing, then cooling efficiency improves, but the system complexity and installation difficulty increase
Solution Approach 1:
The hot aisle containment system is divided into modular, pre-fabricated panels that can be easily assembled and configured to match specific data center layouts. This segmentation into standardized components simplifies installation while maintaining the thermal separation necessary for improved cooling efficiency. The modular approach allows for easy expansion and adaptation without requiring complex custom fabrication.
Solution Approach 2:
The containment structure incorporates adjustable and reconfigurable elements that allow adaptation to different equipment rack configurations and aisle widths. This dynamic design capability enables the system to maintain optimal thermal separation while simplifying installation through flexible configuration options rather than rigid fixed structures.
4Adaptability or versatility
If traditional peripheral CRAC units are used, then cooling is provided, but the system cannot efficiently adapt to varying airflow requirements of different rack configurations
Solution Approach 1:
The hot aisle containment system incorporates adjustable panels, movable barriers, and reconfigurable air distribution components that can be adapted to different equipment rack densities and configurations. This dynamic capability allows the system to optimize airflow patterns and maintain thermal separation efficiency regardless of how equipment is arranged, preventing energy waste from air mixing while accommodating changing operational requirements.
Solution Approach 2:
The containment structure is designed with universal mounting options and standardized interfaces that accommodate various rack types, sizes, and configurations. This multi-functional design enables the same basic system to adapt to different airflow requirements while maintaining cooling efficiency, eliminating the need for specialized solutions for each configuration scenario.
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
Enhances cooling efficiency by containing warm air within the hot aisle, optimizing airflow, and simplifies field installation by integrating cooling, power, and cable management, reducing energy consumption and floor space usage.
Implementation Method 1
a heat exchanger to cool the air within the hot aisle
Implementation Method 2
fans to move air within the hot aisle toward the heat exchanger
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
An air containment cooling system for containing and cooling air between two rows of equipment racks includes a canopy assembly configured to enclose a hot aisle defined by the two rows of equipment racks, and a cooling system embedded within the canopy assembly. The cooling system is configured to cool air disposed within the hot aisle. Other embodiments and methods for cooling are further disclosed.