Modular Rack Cooling With Thermal Isolation for Data Centers
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current data center cooling methods are inefficient and energy-intensive, with significant power consumption due to air exchange, dehumidification, and refrigerant system inefficiencies, and there is a need for more effective cooling systems to manage increasing computational demands and heat generation from high-power electronics like AI GPUs.
Innovation Solution
A distributed cooling system using thermally isolated server racks with compressor-based refrigeration systems that dissipate heat to an external location, incorporating modular, low-height components and refrigerant connections to reduce refrigerant leakage and maintenance, and allowing independent cooling of server racks from facility air.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If conventional air-based cooling systems are used for data centers, then heat dissipation is achieved, but energy consumption is excessively high due to air exchange, dehumidification, and system inefficiencies
Solution Approach 1:
The data center cooling system is segmented into rack-level independent cooling units, where each server rack has its own refrigeration system with compressor, condenser, expansion valve, and evaporator. This segmentation allows each rack to be cooled independently without affecting the entire facility, eliminating the need for large-scale air exchange and dehumidification systems while maintaining optimal cooling efficiency for each rack.
Solution Approach 2:
A refrigerant-based thermal transfer medium is introduced as an intermediary between the server racks and the external environment. The refrigeration systems use refrigerant circulation to transfer heat from the server racks directly to external condensers, bypassing the need for air-based heat exchange within the facility. This intermediary approach enables efficient heat dissipation without the energy losses associated with conventional air cooling systems.
2Loss of energy
If server racks are thermally isolated from the exterior environment, then cooling efficiency is improved, but system complexity increases due to thermal isolation requirements
Solution Approach 1:
The thermal isolation is achieved through segmentation at the rack level rather than facility level. Each server rack is equipped with its own sealed refrigeration system that creates a thermally isolated environment only for that specific rack. This approach improves cooling efficiency by preventing heat infiltration while avoiding the complexity of isolating the entire data center, as each rack operates as an independent thermal zone with standardized cooling components.
3Loss of energy
If distributed refrigeration systems are implemented at rack level, then heat dissipation is improved, but device complexity increases due to multiple compressors and refrigerant connections
Solution Approach 1:
Multiple refrigeration systems are merged into a unified distributed architecture where each rack-level unit follows the same standardized design with compressor, condenser, expansion valve, and evaporator. This merging approach allows for modular deployment and simplified maintenance, as identical components can be serviced using the same procedures. The standardized design reduces operational complexity despite the distributed nature of the system.
Solution Approach 2:
Each rack-level refrigeration system is designed as a self-contained unit that can operate independently and be serviced individually without affecting other racks. This self-service capability allows maintenance personnel to work on one rack's cooling system while others continue operating, reducing system-wide downtime and simplifying maintenance procedures compared to a centralized cooling system where failures affect the entire facility.
4Area of stationary object
If modular low-height cooling components are used, then floor space utilization is improved, but manufacturing complexity increases due to modular design requirements
Solution Approach 1:
The cooling system is divided into modular rack-level units with standardized low-height components that can be vertically stacked or horizontally arranged to optimize floor space utilization. Each module contains integrated compressor, condenser, expansion valve, and evaporator designed to fit within standard rack dimensions. This segmentation enables flexible deployment configurations that maximize space efficiency while maintaining standardized manufacturing processes for each modular unit.
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 significantly reduces data center power consumption by up to 67% by isolating server racks from facility air, enabling higher operating temperatures and humidity levels, improving floor space utilization, and enhancing reliability and maintenance efficiency.
Implementation Method 1
one or more server racks that are thermally isolated from an exterior environment of a data center facility
Implementation Method 2
The one or more refrigeration systems may be configured to dissipate heat to a location outside of the data center facility
Implementation Method 3
one or more refrigeration systems arranged to be in fluid communication with the one or more server racks. The one or more refrigeration systems may each comprise a compressor, a condenser, an expansion valve, and an evaporator
Data Source
AI summary
This disclosure describes a system of distributed, compact, low height, and modular cooling systems that can potentially achieve significant reduction in energy usage by data centers, server farms and other facilities. Discrete cooling ecosystem configurations for each group of server rack, each server rack, each GPU tray containing multiple GPUs within a rack, or each of the GPUs within a GPU tray are disclosed.