Low Thermal Resistivity Concrete for Data Center Heat Dissipation
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Solution Overview
Problem
The construction of data centers faces challenges in heat dissipation due to the high thermal resistivity of conventional construction materials, which requires the use of carbon-rich components that increase costs and sourcing issues.
Innovation Solution
A method for constructing data centers using a fresh concrete composition with a hydraulic binder, mineral additions, and water, where the paste volume is minimized and the solid volume fraction is maximized, eliminating the need for carbon-rich materials by optimizing the paste volume and solid content to achieve low thermal resistivity without carbon-containing additives.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional construction materials with high thermal resistivity are used, then heat dissipation is insufficient, but using carbon-rich components to reduce thermal resistivity increases cost and creates sourcing issues
Solution Approach 1:
The patent changes the composition parameters of concrete by minimizing paste volume (to 300-350 L/m³) and maximizing solid volume fraction (>50%), which fundamentally alters the thermal properties of the material without requiring carbon-rich additives
Solution Approach 2:
The patent creates a composite concrete material optimized for thermal conductivity by carefully selecting and combining aggregates with specific properties (siliceous or calcareous, with controlled particle size distributions) to achieve low thermal resistivity without carbon additives
2Ease of operation
If paste volume is increased to improve workability, then placement is easier, but thermal resistivity increases reducing heat dissipation efficiency
Solution Approach 1:
The patent optimizes the paste volume parameter to a specific range (300-350 L/m³) that balances workability for placement with minimized thermal resistivity, and maximizes solid volume fraction (>50%) to enhance heat dissipation while maintaining adequate flow properties
3Ease of operation
If water content is increased to improve flowability, then transportation and placement are easier, but excess water creates pores reducing thermal conductivity
Solution Approach 1:
The patent minimizes water content in the fresh concrete composition to prevent excess water from creating pores upon evaporation, which would increase thermal resistivity. The optimized paste volume and solid fraction ensure adequate flowability without requiring high water content
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 approach results in a concrete with thermal resistivity below 0.7 m·K/W, reducing the need for carbon-rich materials and lowering construction costs while maintaining effective heat dissipation.
Implementation Method 1
a hydraulic binder such as Portland cement, which produces strength-forming phases by solidifying and curing in contact with water
Implementation Method 2
the thermal resistivity, expressed in m·K/W, or the thermal conductivity, expressed in W/m·K, of the construction material... A construction material of low thermal resistivity would allow the construction of data centers at low cost
Data Source
AI summary
A method for the construction of a data center, includes (a) providing a fresh concrete composition including a paste that includes a hydraulic binder, a mineral addition and water, the paste being present in a mixture with sand and aggregates, whereby the paste is present in the concrete composition in a volume of <320 L/m3 and/or the solid volume fraction of said paste is >50 vol.-% and (b) placing the fresh concrete composition so as to build walls, a floor and/or a ceiling of the data center, which are intended to surround the individual components of computer systems, which are housed in the data center.