Two phase coolant management
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Solution Overview
Problem
Two-phase cooling systems using hazardous fluids lose significant amounts to the environment, harming workers and contributing to global warming, and are interfered with by non-condensable gases that degrade efficiency.
Innovation Solution
A system with a stratification chamber that separates gas phase coolant from other gases based on density, allowing efficient removal of non-condensable gases while retaining the coolant, using sensors and controlled venting to maintain system efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If active venting systems are used to remove non-condensable gases, then system efficiency is improved, but coolant loss increases
Solution Approach 1:
A stratification chamber is introduced as an intermediary component between the cooling system and the venting system. This chamber allows non-condensable gases to separate and accumulate in a controlled environment, enabling their removal through a controlled valve without directly venting the coolant vapor. The stratification chamber acts as a mediator that facilitates gas removal while preserving coolant retention.
Solution Approach 2:
The patent extracts and separates non-condensable gases from the coolant vapor stream using the stratification chamber. By allowing the gas mixture to enter the chamber where density differences cause separation, non-condensable gases are extracted and removed through a controlled valve, while the coolant vapor is retained and returned to the cooling system.
2Power
If hazardous coolant fluids are used for two-phase cooling, then cooling effectiveness is improved, but environmental harm increases
Solution Approach 1:
The system creates a closed, controlled environment where hazardous coolant fluids are contained and循环利用. The stratification chamber and controlled venting system maintain an inert atmosphere that prevents the release of hazardous materials to the environment, allowing the use of effective but hazardous coolants without compromising safety or environmental integrity.
Solution Approach 2:
The patent implements a recovery system where coolant vapor that would otherwise be lost is captured and condensed back into liquid form. The stratification chamber enables selective removal of non-condensable gases while retaining and recovering the valuable coolant vapor, minimizing coolant loss and preventing environmental contamination.
3Productivity
If non-condensable gases are removed from the system, then heat transfer efficiency is improved, but system complexity increases
Solution Approach 1:
The venting system is segmented into distinct functional components: the stratification chamber for gas separation, the controlled valve for selective gas removal, and the condensation system for coolant recovery. This segmentation allows each component to perform its specific function efficiently while maintaining overall system manageability and modularity.
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
The system effectively isolates and removes non-condensable gases, maintaining high efficiency and preventing coolant loss, thus enhancing the performance and safety of two-phase cooling systems.
Implementation Method 1
a stratification chamber fluidly coupled to the liquid immersion tank and configured to at least partially separate a gas phase of the coolant from other gases that rise to upper regions of the stratification chamber
Implementation Method 2
a condenser chamber fluidly coupled to a lower region of the stratification chamber and configured to receive the gas phase of the coolant and cause the gas phase of the coolant to change phase back into the liquid phase of the coolant
Implementation Method 3
operating electronic components in a two-phase liquid immersion tank at a first level that causes liquid coolant proximate to the electronic components to boil and transition to a gas phase
Data Source
Figure 1A
Figure 1B
Figure 1C
AI summary
The discussion relates to cooling computing devices and specifically to managing two-phase cooling. One example can include a two-phase liquid immersion tank containing heat generating components and a liquid phase of a coolant having a boiling point within an operating temperature range of the heat generating components. The example can also include a stratification chamber fluidly coupled to the liquid immersion tank and configured to at least partially separate a gas phase of the coolant from other gases. The example can further include a condenser chamber fluidly coupled to the stratification chamber and configured to receive the gas phase of the coolant and cause the gas phase of the coolant to phase change back into the liquid phase of the coolant.