Immersion Cooling Fluid Composition for Low-Power Server Heat Removal
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Solution Overview
Problem
Conventional cooling systems for high-performance server computing require high power consumption and struggle to meet dielectric constant, boiling point, stability, and environmental impact requirements for efficient immersion cooling fluids.
Innovation Solution
Hydrofluoroolefin compounds with specific structural formulas, particularly the E isomer, are used as working fluids in immersion cooling systems, offering low dielectric constants, stable boiling points, and low environmental impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If conventional cooling systems are used for high-performance servers, then cooling capability is provided, but power consumption is high
Solution Approach 1:
The patent changes the physical and chemical parameters of the cooling fluid by using hydrofluoroolefin compounds with specific molecular structures (Formula I) that have optimized dielectric constants and boiling points. This allows the fluid to effectively cool high-performance servers while requiring less energy compared to conventional cooling systems.
2Reliability
If immersion cooling fluids are used, then cooling efficiency is improved, but dielectric constant requirements are difficult to meet
Solution Approach 1:
The patent achieves the required dielectric constant range (2.0-2.5) by carefully selecting and controlling the molecular structure of hydrofluoroolefin compounds. The specific structural parameters in Formula I (values of m, n, p, q, and r) are optimized to provide the exact dielectric properties needed for immersion cooling while maintaining signal integrity.
3Temperature
If conventional cooling fluids are used, then cooling is provided, but boiling point stability and environmental impact are problematic
Solution Approach 1:
The patent uses hydrofluoroolefin compounds with specific molecular structures that provide stable boiling points above 60°C while having low global warming potential. The structural parameters in Formula I are designed to achieve the desired thermal stability and environmental compatibility simultaneously.
Solution Approach 2:
The hydrofluoroolefin compounds create an inert cooling environment that is chemically stable and environmentally friendly. The perfluorinated and partially fluorinated carbon chains provide chemical inertness while maintaining effective heat transfer properties.
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 hydrofluoroolefin compounds effectively cool high-performance servers with low power consumption, maintaining signal integrity and environmental safety.
Implementation Method 1
the heat-generating component is in contact with the working fluid liquid... transferring heat from the heat generating component using the working fluid
Data Source
AI summary
An immersion cooling system includes a housing having an interior space; a heat-generating component disposed within the interior space; and a working fluid liquid disposed within the interior space such that the heat-generating component is in contact with the working fluid liquid. The working fluid comprises a compound having Structural Formula (IA)Each Rf1 and Rf2 is, independently, (i) a linear or branched perhalogenated acyclic alkyl group having 1-6 carbon atoms and optionally contains one or more catenated heteroatoms selected from O or N; or (ii) a perhalogenated 5-7 membered cyclic alkyl group having 3-7 carbon atoms and optionally contains one or more catenated heteroatoms selected from O or N.