Bubbling-Assisted Immersion Tank for Low-Power Coolant Circulation
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Solution Overview
Problem
Existing immersion cooling systems for high-performance servers face high fluid resistance due to high-density server installations and high-viscosity liquids, necessitating high-lift motors and increased power consumption, which is detrimental to Power Usage Effectiveness (PUE).
Innovation Solution
A bubbling-assisted immersion tank system with a bubbling module that generates auxiliary bubbles to enhance liquid circulation, using gas manifolds and heat-conducting carriers to direct airflow to heat sources, improving cooling efficiency and reducing motor workload and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high-lift motors are used to maintain circulation of large amounts of insulating liquid, then cooling circulation is ensured, but power consumption increases significantly
Solution Approach 1:
The patent introduces a gas bubble generation system that injects gas bubbles into the cooling liquid to utilize pneumatic-hydraulic interaction. The bubbles rise through the liquid, creating natural circulation currents that reduce the workload on the motor while maintaining effective cooling circulation.
Solution Approach 2:
The system utilizes the phase transition of gas bubbles rising through the liquid medium. The bubbles transition from being generated at the bottom to rising to the surface, creating natural convection currents that enhance liquid circulation without requiring additional mechanical energy input.
2Productivity
If high-density server installations are implemented, then computing capacity increases, but fluid resistance increases significantly
Solution Approach 1:
The gas bubble injection system creates pneumatic-hydraulic forces that penetrate the high-density server installation. The bubbles rise through the liquid, creating localized flow patterns that reduce fluid resistance around the servers while maintaining high-density packing.
Solution Approach 2:
The rising gas bubbles create a form of natural vibration and movement in the cooling liquid, which helps disrupt stagnant flow patterns and reduce fluid resistance in the high-density server environment.
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
Enhances cooling efficiency by promoting liquid circulation, reduces power consumption, and aligns with energy-saving trends by optimizing Power Usage Effectiveness (PUE) while maintaining stable cooling performance.
Implementation Method 1
The bubbling-assisted module is configured to transport a plurality of auxiliary bubbles into the cooling liquid so that the auxiliary bubbles are discharged from a top of the accommodation space
Implementation Method 2
Immersion cooling systems work by directly submerging servers in insulating liquids, allowing heat from the components to be directly transferred to the liquid
Implementation Method 3
The heated insulating liquid is then circulated back to the tank through natural convection with the aid of a motor and a heat exchanger
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
The immersion cooling system includes a bubbling-assisted immersion tank and a coolant distribution device. The bubbling-assisted immersion tank includes a tank body and a bubbling assisted-module. The tank body includes an accommodation space provided with a cooling liquid. The bubbling-assisted module is disposed at a bottom of the accommodating space and is configured to transport a plurality of auxiliary bubbles into the cooling liquid so that the auxiliary bubbles are discharged from a top of the accommodating space through an object to be cooled. The coolant distribution device is connected to the tank body and is configured to introduce and discharge the cooling liquid from the accommodation space. Thus, the cooling efficiency of the immersion cooling system can be improved.