Two-Phase Immersion Cooling Volume Control for Stable Warmed Liquid Output
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Solution Overview
Problem
The variation in temperature of warmed fluid output from immersion cooling systems due to fluctuating electrical power consumption and heat dissipation in data centers poses challenges for precise temperature control in downstream applications, making it difficult to maintain consistent heating or cooling effects.
Innovation Solution
An improved immersion cooling system modulates boiling activity within the immersion bath by adjusting the volume of the ambient space to stabilize the temperature of the warmed fluid output, using mechanisms such as changing the volume of the immersion bath liquid, mechanically altering the chamber dimensions, or expanding/compressing structures within the ambient region, coupled with adjustments to the condenser's thermal resistance to maintain a consistent output temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the volume of ambient space is adjusted to modulate boiling activity, then the temperature stability of warmed fluid output is improved, but the device complexity increases
Solution Approach 1:
The patent implements dynamic adjustment of the ambient space volume within the chamber to modulate boiling activity. The system transitions from a static chamber configuration to a dynamic one where the ambient space can be expanded or compressed to control the boiling rate and stabilize the warmed fluid output temperature despite varying heat input from electronic devices.
Solution Approach 2:
The patent changes the physical parameter of ambient space volume to control the boiling process. By adjusting the volume of the ambient space, the system modifies the boiling activity level, which directly affects the temperature of the warmed fluid output, thereby stabilizing it against temperature variations caused by fluctuating electrical power consumption.
2Manufacturing precision
If mechanisms are added to adjust ambient space volume, then temperature control precision is improved, but ease of operation deteriorates
Solution Approach 1:
The system incorporates sensors that automatically detect temperature variations in the warmed fluid output and trigger appropriate adjustments to the ambient space volume. This self-regulating mechanism eliminates the need for manual intervention, maintaining high temperature control precision while preserving ease of operation through automation.
Solution Approach 2:
The patent implements a feedback control system where temperature sensors continuously monitor the warmed fluid output and provide signals to adjust the ambient space volume accordingly. This closed-loop feedback ensures precise temperature control by dynamically responding to temperature deviations, thereby maintaining operational simplicity despite the added control complexity.
3Temperature
If condenser thermal resistance is adjusted to maintain consistent output temperature, then temperature stability is improved, but device complexity increases
Solution Approach 1:
The patent implements dynamic adjustment of the condenser's thermal resistance to maintain consistent warmed fluid output temperature. The condenser transitions from a static thermal resistance component to a dynamic one that can be adjusted in real-time to compensate for variations in boiling activity and heat input, thereby stabilizing the output temperature.
Solution Approach 2:
The patent changes the thermal resistance parameter of the condenser to control the heat transfer process. By adjusting the condenser's thermal resistance, the system modifies the condensation rate and the resulting warmed fluid output temperature, thereby maintaining temperature consistency despite fluctuations in the boiling process.
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 maintains a stable temperature of the warmed fluid output by dynamically adjusting boiling point and condenser resistance, ensuring consistent thermal management for downstream equipment.
Implementation Method 1
heat from the chips/boards to the immersion bath
Implementation Method 2
the temperature of the bulk fluid in the bath reaches its boiling temperature. Vapor from the bath is condensed
Implementation Method 3
the temperature of the bulk fluid in the bath reaches its boiling temperature
Implementation Method 4
Vapor from the bath is condensed by a condenser. The vapor from the bath condenses on the cooled condenser pipes
Implementation Method 5
modulates boiling activity within the immersion bath by adjusting the volume of the ambient space to stabilize the temperature of the warmed fluid output
Data Source
AI summary
An apparatus is described. The apparatus includes a controller to cause a volume of an ambient of a two phase immersion cooling system to be modulated. The ambient is to include a condenser that is to emit fluid warmed by vapor in the ambient. The vapor is to be generated by heat. The heat is to be generated by electronic devices that are to be immersed in a liquid bath. The controller is to cause the volume to increase in response to a first temperature of the fluid approaching a first lower limit. The controller is to cause the volume to decrease in response to a second temperature of the fluid approaching a second higher limit.