Two-Phase Cooling Condenser Positioning for Vapor Heat Transfer
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Solution Overview
Problem
Existing cooling systems, particularly in high-performance computing environments, struggle to efficiently transfer heat away from components like CPUs and GPUs, leading to overheating and operational inefficiencies, despite advancements in liquid cooling technologies.
Innovation Solution
A two-phase cooling system with a condenser that adjusts its position or orientation using a positioning device to enhance the spatial overlap between vapor and the condenser, optimizing heat transfer efficiency by controlling the vapor's density distribution and interaction with the condenser.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If conventional air cooling is used, then the system is simple and cost-effective, but it cannot efficiently dissipate heat from high-power components
Solution Approach 1:
The patent employs phase-change cooling where a coolant undergoes phase transition (evaporation and condensation) to transfer heat from the heat source. The coolant absorbs heat during evaporation and releases heat during condensation, enabling efficient heat dissipation while maintaining system compactness.
Solution Approach 2:
The patent introduces a positioning device as an intermediary mechanism that controls the spatial relationship between the condenser and vapor cloud. This positioning device optimizes heat transfer by adjusting the condenser's position or orientation, thereby improving cooling efficiency without requiring a complete redesign of the cooling system.
2Loss of energy
If liquid cooling systems are implemented, then heat transfer efficiency improves, but the system becomes more complex and requires additional components
Solution Approach 1:
The patent utilizes phase-change cooling where the coolant transitions between liquid and vapor phases to efficiently transfer heat. This approach achieves superior heat transfer efficiency compared to conventional liquid cooling while avoiding the complexity of pump and radiator systems through the use of passive phase-change mechanisms.
Solution Approach 2:
The positioning device is configured to automatically adjust the condenser's position or orientation in response to vapor cloud distribution, enabling the system to self-optimize heat transfer efficiency without requiring external control systems or complex automation.
3Loss of energy
If the condenser position is fixed, then the system structure is simple, but heat transfer efficiency decreases due to poor vapor-condenser overlap
Solution Approach 1:
The patent transforms the fixed condenser into a dynamic component that can adjust its position or orientation. The positioning device enables the condenser to adapt its configuration based on vapor cloud distribution, thereby optimizing heat transfer efficiency while maintaining relatively simple system architecture.
Solution Approach 2:
The positioning device is designed to automatically respond to vapor cloud conditions and adjust the condenser's position or orientation without external intervention. This self-adjusting mechanism optimizes heat transfer efficiency while avoiding the complexity of externally controlled positioning systems.
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 significantly enhances cooling efficiency, allowing for higher-density server deployments, reduced space requirements, and lower operational costs by effectively managing heat transfer from high-power components.
Implementation Method 1
A two-phase cooling system includes a heat source in a first volume of an enclosure and a liquid coolant in the first volume such that the liquid coolant is in contact with the heat source. A vapor that partially fills a second volume of the enclosure is generated by the liquid coolant when heat generated by the heat source is absorbed by the liquid coolant.
Implementation Method 2
heat generated by the heat source is absorbed by the liquid coolant
Implementation Method 3
The vapor is cooled by a condenser to thereby generate condensed liquid coolant that returns to the first volume
Implementation Method 4
A positioning device is provided that allows a position or orientation of the condenser to be adjusted to increase a spatial overlap of the vapor with the condenser, to thereby increase an efficiency of the heat-transfer coupling between the vapor and the condenser.
Data Source
AI summary
An embodiment two-phase cooling system includes an enclosure having a first volume and a second volume, a heat source located in the first volume, and a liquid coolant located in the first volume such that the liquid coolant is in contact with the heat source. A vapor partially filling the second volume is generated by the liquid coolant when heat generated by the heat source is absorbed by the liquid coolant. A condenser located in the second volume removes heat from the vapor, thereby condensing the vapor into condensed liquid coolant that returns to the first volume. A positioning device, located in the second volume and attached to the condenser, controls a position or orientation of the condenser within the second volume to increase a spatial overlap of the vapor with the condenser, thereby increasing an efficiency of the heat-transfer coupling between the vapor and the condenser.