Low-Pressure Two-Phase Cold Plate With Buffer Flow Stabilization
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Solution Overview
Problem
Datacenter cooling systems face challenges in efficiently managing varying cooling requirements due to changing computing loads, particularly in high heat density environments where traditional air-cooling methods are insufficient, and existing liquid cooling systems operate at high pressures, making them prone to leaks and handling difficulties.
Innovation Solution
An intelligent low pressure two-phase cold plate with flow stabilization is introduced, utilizing a two-phase refrigerant or engineered fluid to support a two-phase refrigerant-to-air heat exchanger, which includes a compressor or condensing unit to release heat into a datacenter's hot aisle, and a buffer for flow stabilization, allowing for flexible flow rates and volumes to address different cooling demands without external condensing units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional air-cooling systems are used, then system simplicity is maintained, but cooling efficiency becomes inadequate for high-density computing environments
Solution Approach 1:
The patent transitions from air-cooling to liquid cooling by circulating refrigerant through cold plates that contact heat-generating components. This hydraulic approach enables significantly higher cooling efficiency for high-density computing environments while managing the complexity through integrated design
Solution Approach 2:
The system utilizes phase change of refrigerant (liquid to vapor and back) within the closed-loop cooling system to efficiently absorb and dissipate heat from computing components, enabling high cooling capacity while maintaining system compactness
2Productivity
If high-pressure refrigerant systems are used, then cooling capacity is increased, but risk of leaks and handling difficulties increases
Solution Approach 1:
The patent operates the refrigerant cooling system at low pressure rather than high pressure, maintaining sufficient cooling capacity through optimized heat exchange design while significantly reducing the risks of leaks, handling difficulties, and safety concerns associated with high-pressure systems
3Adaptability or versatility
If cooling systems are designed for sudden high heat requirements, then adaptability to changing loads is improved, but system complexity increases
Solution Approach 1:
The patent implements a dynamic cooling system where refrigerant flow is actively controlled to match changing heat generation demands of computing components. The system can rapidly respond to sudden high heat requirements while returning to low-power mode when demand decreases, optimizing performance across varying loads
Solution Approach 2:
The cooling system incorporates sensors and control mechanisms that monitor temperature and heat load conditions, automatically adjusting refrigerant flow and cooling capacity to match actual demand, enabling high adaptability while managing complexity through intelligent control
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 solution enables efficient cooling of high heat density components like GPUs, CPUs, and switches by using a low-pressure two-phase fluid system, reducing the risk of leaks and handling issues, and effectively managing varying cooling requirements within datacenters, enhancing the reliability and efficiency of cooling systems.
Implementation Method 1
an intelligent low pressure two-phase cold plate with flow stabilization, which utilizes a two-phase refrigerant or engineered fluid to efficiently cool high heat density components like GPUs, CPUs, and switches
Implementation Method 2
a buffer for flow stabilization, allowing for flexible cooling requirements and reduced pressure operations
Data Source
AI summary
Systems and methods for cooling a datacenter are disclosed. In at least one embodiment, a cold plate includes an evaporator to remove heat from at least one computing device using a two-phase fluid and using a buffer to perform flow stabilization represented by different volumes or different flow rates of a two-phase fluid that is enabled to flow between an evaporator and a condensing or compressor unit located external to a cold plate.