Immersion Cooling Zones for High-Capacity Datacenter Components
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Solution Overview
Problem
Conventional thermal management systems for computing devices cool all components uniformly, which can lead to insufficient cooling of high-capacity components and wasteful energy usage, as they are not tailored to the specific thermal needs of different components within a computing device.
Innovation Solution
The implementation of an immersion cooling system with separate volumes of working fluid for different components, where the pressure in each volume is adjusted to customize the boiling temperature of the working fluid to match the thermal requirements of the components, allowing for efficient heat transfer through the latent heat of boiling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional uniform cooling systems are used for all components, then the cooling system is simple to implement, but high-capacity components are insufficiently cooled and energy is wasted on components that do not need intensive cooling
Solution Approach 1:
The cooling system is divided into multiple independent cooling zones, each with its own working fluid volume and pressure control mechanism. High-capacity components are assigned to zones with lower boiling temperatures for intensive cooling, while other components are cooled by zones with higher boiling temperatures. This segmentation allows tailored cooling for different thermal requirements without requiring a completely complex system redesign.
Solution Approach 2:
Different regions of the computing device are assigned different cooling properties through separate working fluid volumes with customized boiling temperatures. The local cooling characteristics (boiling temperature, heat transfer rate) are optimized for each specific component's thermal needs, allowing high-capacity components to receive intensive cooling while other components receive appropriate cooling without waste.
2Temperature
If the working fluid boiling temperature is lowered to effectively cool high-capacity components, then cooling effectiveness improves, but energy waste increases due to excessive cooling of other components
Solution Approach 1:
The working fluid system is segmented into multiple volumes, each with independently controlled boiling temperatures. Volume 1 has a lower boiling temperature optimized for high-capacity components requiring intensive cooling, while volume 2 has a higher boiling temperature suitable for other components. This prevents energy waste by matching cooling intensity to actual thermal needs of different component groups.
Solution Approach 2:
Each cooling zone is assigned local quality characteristics (boiling temperature, fluid properties) matched to the thermal requirements of components in that zone. High-capacity components are surrounded by working fluid with lower boiling temperature for effective cooling, while other components are surrounded by working fluid with higher boiling temperature to avoid over-cooling and energy waste.
3Ease of operation
If a single working fluid volume is used for all components, then the system is simpler to operate, but thermal management precision is insufficient for different component requirements
Solution Approach 1:
The working fluid system is segmented into multiple volumes with independent pressure control, allowing each zone to be optimized for specific thermal requirements. Despite this segmentation, the system maintains operational simplicity through centralized control mechanisms that automatically regulate each zone's pressure and boiling temperature based on component thermal needs.
Solution Approach 2:
The system dynamically adjusts the pressure and boiling temperature of each working fluid volume based on real-time thermal conditions of components. This dynamic control enables precise thermal management for different component requirements while maintaining ease of operation through automated control systems that adapt to changing thermal loads.
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 ensures that high-capacity components are effectively cooled while minimizing the use of working fluid, reducing energy waste and operational costs, and maintaining the thermal integrity of the components by managing the boiling temperature within safe limits.
Implementation Method 1
immersing a first electronic component of the computing device in a first working fluid contained in a first volume
Implementation Method 2
changing a pressure in the first volume to alter a boiling temperature of the first working fluid in the first volume
Data Source
AI summary
A method of thermal management of a computing device includes immersing a first electronic component of the computing device in a first working fluid contained in a first volume, immersing a second electronic component of the computing device in a second working fluid contained in a second volume, and changing a pressure in the first volume to alter a boiling temperature of the first working fluid in the first volume.