Vacuum Immersion Cooling Platform for Server Heat Management
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Solution Overview
Problem
Traditional computing systems face inefficiencies in cooling due to the need for constant fluid replenishment in immersion cooling systems, which can lead to decreased performance or component damage if the dielectric fluid level drops, and existing systems struggle with maintaining optimal temperatures and reducing contamination.
Innovation Solution
A pressure-controlled vessel utilizing a dielectric fluid with a low boiling point, combined with a vapor management system that condenses gaseous fluid back into liquid, maintaining a vacuum environment to enhance cooling efficiency and reduce contamination risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If dielectric fluid is used for immersion cooling, then cooling efficiency is improved, but fluid level drop causes decreased performance or component damage
Solution Approach 1:
The system uses a vacuum pump to automatically maintain vacuum conditions and a vapor condensation system to continuously recycle evaporated dielectric fluid back into liquid form, eliminating the need for manual fluid replenishment and preventing fluid level drop that would cause component damage
Solution Approach 2:
The vapor condensation system captures evaporated dielectric fluid vapor, condenses it back to liquid form, and returns it to the cooling bath, preventing fluid loss and maintaining constant fluid levels for reliable component cooling
2Temperature
If vacuum environment is created to reduce dielectric fluid vaporization temperature, then cooling efficiency is improved, but system complexity increases
Solution Approach 1:
The vacuum pump and vapor condensation system are integrated into a unified vapor management system that simultaneously maintains vacuum conditions and recycles dielectric fluid vapor, reducing overall system complexity while achieving the desired temperature reduction
Solution Approach 2:
The vacuum pump operates continuously to maintain the vacuum environment, and the vapor condensation system continuously recycles evaporated fluid, ensuring uninterrupted cooling efficiency without requiring periodic system shutdowns or manual interventions
3Productivity
If dielectric fluid is continuously replenished, then cooling performance is maintained, but fluid loss and contamination occur
Solution Approach 1:
The vapor condensation system captures dielectric fluid vapor that would otherwise be lost, condenses it back to liquid form, and returns it to the cooling bath, eliminating fluid loss while maintaining continuous cooling performance
Solution Approach 2:
The vacuum environment created by the vacuum pump reduces dielectric fluid vaporization and prevents contamination from external sources, allowing the system to maintain cooling performance without continuous fluid replenishment that would lead to loss and contamination
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 solution allows for increased computing density and performance by maintaining components at stable low temperatures, reducing energy consumption, and minimizing fluid loss, while preventing contamination and maintaining efficient cooling through vapor condensation and fluid recycling.
Implementation Method 1
draw heat directly from the component into the liquid
Implementation Method 2
condensing system in order to cool and convert gaseous dielectric fluid to liquid dielectric fluid
Implementation Method 3
operate under a vacuum, thereby reducing the temperature at which dielectric fluid vaporizes
Data Source
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AI summary
A two-phase liquid immersion cooling system is described in which heat generating computer components cause a dielectric fluid in its liquid phase to vaporize. The dielectric vapor is then condensed back into a liquid phase and used to cool the computer components. Using a pressure controlled vessel and pressure controller, the disclosed system may be operated at less than ambient pressure. By controlling the pressure at which the system operates, the user may influence the temperature at which the dielectric fluid vaporizes and thereby achieve increased performance from a given computer component. Utilizing robotic arms and slot-in computing components, a self-healing computing system may be created.