Active 2-Phase Mist-Stream Cooling for Heat Source Temperature Control
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Solution Overview
Problem
Conventional 2-phase immersion cooling systems face challenges such as difficult installation, vapor containment issues, messiness during maintenance, and potential interactions between the cooling fluid and electronic components.
Innovation Solution
An active 2-phase mist-stream cooling system is introduced, where a stream of airborne coolant droplets suspended in a gaseous transport medium is forced into heat generating regions, vaporizing and then condensing back into liquid form within a condenser, maintaining temperature within a specific range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If 2-phase liquid immersion cooling is used to achieve high heat dissipation rate, then heat dissipation performance is improved, but installation difficulty and maintenance messiness increase
Solution Approach 1:
The patent changes the physical state parameter of the coolant from liquid to gas, transforming the cooling system from liquid immersion to gas-phase mist circulation. This parameter change enables the coolant to be pumped through standard piping without containment issues, dramatically improving installation and maintenance ease while maintaining high heat dissipation through phase change mechanisms
Solution Approach 2:
The patent employs pneumatic principles by using a compressor to circulate the coolant gas through the system. The compressor pumps the gas-phase coolant through channels and delivers it to the target area, replacing the liquid immersion approach with a pneumatic delivery system that is easier to install and maintain while achieving the same cooling effect
2Productivity
If 2-phase liquid immersion cooling is used to achieve high heat dissipation rate, then heat dissipation performance is improved, but vapor containment difficulties increase
Solution Approach 1:
The patent changes the coolant from liquid to gas phase, eliminating the vapor containment problem entirely. By using a gas-phase coolant that is already in the appropriate state for circulation, the system avoids the complexity of containing and managing vapor that would be generated from liquid evaporation
Solution Approach 2:
The patent extracts and removes the vapor containment function from the system by fundamentally changing the coolant state. Instead of needing to contain and manage vapor generated from liquid coolant, the system直接使用气态冷却剂，eliminating the vapor containment requirement and associated complexity
3Productivity
If 2-phase liquid immersion cooling is used to achieve high heat dissipation rate, then heat dissipation performance is improved, but interaction between cooling fluid and electronic components increases
Solution Approach 1:
The patent changes the coolant from liquid to gas phase, which fundamentally reduces harmful interactions with electronic components. Gas-phase coolant does not cause the same types of damage as liquid coolant, including corrosion, short circuits, and physical damage to sensitive components
Solution Approach 2:
The patent employs a mist or aerosol form of the coolant that can be easily introduced and removed without causing long-term damage. The gas-phase or fine-mist coolant interacts temporarily with components for cooling purposes and then dissipates or is easily removed, minimizing harmful interactions compared to persistent liquid immersion
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 system effectively addresses the shortcomings of 2-phase immersion cooling by reducing viscosity, improving installation and maintenance, and enhancing heat dissipation rates, while maintaining a uniform temperature across the heat source.
Implementation Method 1
the coolant droplets vaporize as coolant gas in the channel due to heat generated by the heat source
Implementation Method 2
a condenser configured to condense the coolant gas into coolant droplets or coolant liquid
Data Source
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AI summary
The cooling system comprises a channel encompassing a heat source; a coolant-droplets introducer configured to introduce coolant droplets into the channel, wherein the coolant droplets vaporize as coolant gas in the channel due to heat generated by the heat source; a compressor configured to pump an air from a channel subspace into a condenser subspace, wherein the air comprises the coolant gas; and a condenser configured to condense the coolant gas into coolant droplets or coolant liquid. The coolant liquid is introduced to or for the coolant-droplets introducer.