Variable-Density Tank Inserts for Controlled Immersion Cooling
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Solution Overview
Problem
Existing fluid replacement structures in immersion cooling tanks primarily serve to occupy space and reduce the amount of dielectric working fluid needed, but do not effectively assist with buoyancy control, leading to difficulties in placing computing devices and potential damage during immersion.
Innovation Solution
Fluid replacement structures with variable density configurations, including features like connectors, lifting mechanisms, and emergency cooling systems, to facilitate easy placement and manage vaporized fluid flow, while providing structural support and temperature regulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If fluid replacement structures use uniform density, then manufacturing is simplified, but buoyancy control becomes difficult making it hard to properly place computing devices
Solution Approach 1:
The fluid replacement structure is divided into multiple portions with different densities. The first portion has a first density and the second portion has a second density that is greater than the first density. This segmentation allows the structure to achieve proper buoyancy control for device placement while maintaining manufacturing simplicity through a modular design approach.
Solution Approach 2:
Different portions of the fluid replacement structure are assigned different density properties according to their specific functional requirements. The first portion has lower density for buoyancy control while the second portion has higher density for stability, creating local quality variations that optimize both placement control and manufacturing.
2Speed
If fluid replacement structures have high density, then they sink rapidly to the bottom, but this causes damage to computing devices and makes controlled immersion difficult
Solution Approach 1:
The structure is segmented into a first portion with lower density and a second portion with higher density. The lower density first portion slows down the sinking speed to prevent damage, while the higher density second portion ensures the structure eventually reaches the bottom for proper device immersion.
Solution Approach 2:
The fluid replacement structure uses composite construction with materials of different densities combined in specific configurations. This composite approach enables the structure to achieve both controlled sinking speed for device safety and eventual bottom placement for proper immersion.
3Speed
If fluid replacement structures have low density, then they float on the surface, but this prevents proper submersion of computing devices in the dielectric fluid
Solution Approach 1:
The fluid replacement structure is divided into portions with different densities where the first portion has lower density for initial buoyancy and the second portion has higher density to eventually overcome buoyancy and enable submersion. This segmentation allows controlled transition from floating to submerged state.
Solution Approach 2:
The structure utilizes parameter changes in density distribution to control the submersion process. By having different density portions, the structure can transition from a floating state (low effective density) to a submerged state (high effective density) enabling proper device immersion in the dielectric fluid.
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 the ease of device placement, manages vaporized fluid flow, and maintains temperature stability, reducing operational costs and device damage risks in immersion cooling systems.
Implementation Method 1
The second portion of the fluid replacement structure has a second density that is greater than the first density of the first portion. The second portion of the fluid replacement structure is positioned beneath the first portion of the fluid replacement structure when the fluid replacement structure and the computing device are placed in the immersion cooling tank.
Data Source
AI summary
Fluid replacement structures used in immersion cooling tanks can include various enhancements to make them functional beyond simply taking up space. For example, the density of fluid replacement structures can be variable to assist with buoyancy control. As another example, fluid replacement structures can be designed to enable vaporized working fluid to be directed to a desired location. As another example, fluid replacement structures can include emergency cooling features, such as different substances that cause an endothermic reaction to occur when they are mixed together. The substances can be separated by a membrane that melts when the temperature reaches a certain point. As another example, a fluid replacement structure can provide structural support for an immersion cooling tank when negative pressure operations are performed. Fluid replacement structures can also include alignment features, lifting features, locking features, mating guides, fiducial markers, or the like.