In-Row Cooling Units for Datacenter Heat Load Management
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Solution Overview
Problem
Datacenters face challenges in managing heat loads exceeding initial expectations, leading to inadequate cooling systems and potential server removals or operational disruptions, as existing cooling systems are often undersized and difficult to expand.
Innovation Solution
In-row cooling units are installed alongside server racks to provide additional cooled air, utilizing fans and chilling coils to transfer heat, and can be modularly expanded by interlocking units, reducing the need for redundant components and allowing for flexible installation within existing datacenter infrastructure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cooling system capacity is increased to handle unexpected heat load, then cooling adequacy is improved, but device complexity and installation space requirements worsen
Solution Approach 1:
The cooling system is divided into modular in-row cooling units that can be independently installed between server racks. Each unit contains its own cooling components (chiller, fans, air handlers), allowing the system to be segmented into discrete, manageable modules that can be added incrementally to match heat load requirements without requiring complex centralized system redesign
Solution Approach 2:
The cooling units utilize the vertical space between server racks and the overhead infrastructure, installing cooling equipment in the overhead plenum area and distributing cooled air through the rack spaces. This dimensional approach allows cooling capacity expansion without consuming additional floor space, accommodating heat load increases within the existing datacenter footprint
2Reliability
If cooling system capacity is increased by adding equipment, then cooling adequacy is improved, but installation space availability worsens
Solution Approach 1:
The in-row cooling units are designed to nest within the existing datacenter infrastructure, installing between server racks and utilizing overhead plenum space. The modular units fit into the existing rack arrangement and ceiling structure, allowing cooling capacity expansion without requiring additional floor space or disrupting the existing datacenter layout
Solution Approach 2:
The cooling system utilizes vertical and overhead space dimensions rather than horizontal floor space. By installing cooling equipment in the overhead plenum and distributing air through vertical pathways between racks, the system expands cooling capacity while maintaining the existing floor plan and avoiding space constraints at the equipment level
3Ease of manufacture
If traditional cooling systems are used with maximum capacity matching expected heat load, then initial cost is reduced, but adaptability to heat load changes worsens
Solution Approach 1:
The cooling system is designed to be dynamic and adjustable, with modular in-row units that can be added or removed based on actual heat load requirements. The system transitions from a static, fixed-capacity design to a dynamic, scalable architecture where cooling capacity can be adjusted in real-time to match changing heat loads from equipment additions or removals
Solution Approach 2:
The system allows for parameter changes in cooling capacity by adding or removing modular units. Each unit provides a defined cooling capacity, and the total system capacity can be adjusted by changing the number of active units, allowing the datacenter to adapt to varying heat loads without replacing entire cooling systems or incurring excessive costs for peak capacity
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
The in-row cooling units effectively supplement or replace traditional cooling systems, enabling increased server capacity and reducing operational costs by utilizing unutilized space and minimizing infrastructure modifications, thus addressing heat load management issues and enhancing datacenter efficiency.
Implementation Method 1
utilizing fans and chilling coils to transfer heat
Implementation Method 2
utilizing fans and chilling coils to transfer heat
Data Source
AI summary
Cooling units are configured to be installed in a datacenter, such as in a row configured to receive server racks. The cooling units include chilling coils configured to cool air passing across the chilling coil. The cooling units when installed supply cooled air and include one or more cooling unit components located beneath or installed in a raised floor of the datacenter.