Dielectric Fluid Immersion Cooling Vacuum Pressure Control
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Solution Overview
Problem
Traditional computing systems face inefficiencies in cooling due to the need for constant fluid replenishment in liquid immersion cooling systems, leading to potential component damage from exposure to gaseous atmospheres and reduced performance.
Innovation Solution
A pressure-controlled vessel utilizing a dielectric fluid that vaporizes and condenses within the system, maintaining a vacuum to reduce boiling point and prevent fluid loss, allowing for direct heat transfer and efficient cooling without constant replenishment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If traditional liquid cooling systems use flowing liquid to draw heat from computer components, then cooling effectiveness is improved, but the system requires constant fluid replenishment and risks component damage from exposure to gaseous atmospheres
Solution Approach 1:
The patent employs a dielectric fluid that creates an inert, electrically non-conductive environment for cooling computer components. This fluid prevents harmful electrical discharge while maintaining stable cooling conditions without requiring constant replenishment, as the dielectric properties prevent fluid loss through electrical arcing or component damage
Solution Approach 2:
The system utilizes phase transitions of the dielectric fluid between liquid and vapor states to achieve efficient heat transfer. The fluid absorbs heat from components through evaporation and is then condensed and reused, creating a closed-loop system that eliminates the need for constant fluid replenishment while maintaining effective cooling
2Use of energy by moving object
If immersion cooling submerges computer components in dielectric liquid, then heat transfer efficiency is improved, but system complexity and pressure management requirements increase
Solution Approach 1:
The patent changes the pressure parameter of the system to optimize the dielectric fluid's properties. By operating at controlled pressures, the system achieves enhanced heat transfer efficiency while the pressure management system prevents fluid loss and maintains stable operating conditions, balancing the trade-off between performance and complexity
Solution Approach 2:
The dielectric fluid in the immersion cooling system provides self-service by automatically preventing its own loss through its electrically non-conductive properties. The fluid's inherent dielectric strength prevents electrical breakdown and fluid discharge, reducing the complexity of external management systems while maintaining high heat transfer efficiency
3Temperature
If vacuum pressure is applied to reduce dielectric fluid boiling point, then operating temperature is reduced, but system reliability requirements increase to prevent fluid loss
Solution Approach 1:
The dielectric fluid creates an inert atmosphere within the pressure-controlled vessel, preventing harmful reactions and electrical discharge even under vacuum conditions. This inert environment enhances system reliability by eliminating electrical arcing and fluid loss through component damage, allowing safe operation at reduced temperatures and pressures
Solution Approach 2:
The dielectric fluid acts as an intermediary between the vacuum environment and the computer components, providing thermal management while preventing direct harmful effects of vacuum conditions. The fluid's dielectric properties mediate the interaction between electrical components and the pressure-controlled environment, ensuring reliability while achieving lower operating temperatures
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 enhances cooling efficiency, increases computing density, and maintains component stability by preventing fluid loss and exposure to contaminants, thereby improving performance and reducing operational costs.
Implementation Method 1
a pressure controlled vessel which contains a sufficient quantity of liquid dielectric fluid to substantially immerse heat generating computer components and also contains an atmosphere comprising gaseous dielectric fluid
Implementation Method 2
a condensing system in order to cool and convert gaseous dielectric fluid to liquid dielectric fluid
Implementation Method 3
The disclosed pressure management system allows the disclosed embodiment to operate under a vacuum, thereby reducing the temperature at which dielectric fluid vaporizes
Implementation Method 4
computer components and other electronics may be submerged in a dielectric or electrically non-conductive liquid in order to draw heat directly from the component into the liquid
Data Source
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. Advantageously an absorption/desorption unit is employed having a carbon element and a controller configured to regulate the absorption unit. Robotic components facilitate automation.