TEC Rack Cooling Control for IT Power and Temperature Balance
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Solution Overview
Problem
Data centers face challenges in efficiently cooling high-power density electronic racks, leading to increased power leakage and reduced overall power efficiency due to excessive cooling requirements, especially when relying on limited renewable energy sources.
Innovation Solution
A thermal management system utilizing thermoelectric cooling (TEC) elements mounted on IT components, which optimizes power distribution between TEC elements and IT components based on temperature readings and workload, minimizing power leakage by adjusting cooling capacity to maintain optimal operational temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If cooling capacity is increased to maintain processor temperature, then processor power efficiency is preserved, but overall data center power efficiency deteriorates due to excess cooling power
Solution Approach 1:
The patent applies local quality by implementing individual TEC elements mounted directly on each processor component rather than using centralized CRAC units. This allows each processor to receive customized cooling tailored to its specific thermal characteristics and workload, optimizing cooling efficiency at the local level while reducing overall data center power consumption.
Solution Approach 2:
The system dynamically adjusts cooling power allocation based on real-time processor temperature readings and workload conditions. The controller continuously monitors processor states and modulates TEC element power consumption accordingly, ensuring processors receive adequate cooling only when needed, thereby preserving processor efficiency while minimizing excess cooling power consumption.
2Loss of energy
If renewable power systems are used to decrease dependency on AC mains, then carbon footprint is reduced, but power availability becomes limited and constant
Solution Approach 1:
The system dynamically adapts cooling power consumption to match the limited and variable output of renewable power sources. The controller adjusts TEC element operation based on available renewable power, processor temperature conditions, and workload requirements, ensuring optimal performance within the constraints of renewable energy availability.
Solution Approach 2:
The patent changes operational parameters by transitioning from constant high-power cooling to variable-power cooling that adapts to renewable energy availability. The system modifies cooling intensity, TEC element power allocation, and processor operational parameters to maximize efficiency within the constraints of limited renewable power supply.
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 enhances computing power efficiency by maximizing power usage in IT components while minimizing power consumption by TEC elements, effectively utilizing limited energy sources and maintaining proper temperatures, thus improving overall data center performance.
Implementation Method 1
a thermoelectric cooling (TEC) element that is mounted to an information technology (IT) component of the electronic rack, wherein the TEC element draws a first input power from the power source to cool the IT component
Data Source
AI summary
According to one embodiment, a thermal management system includes a thermoelectric cooling (TEC) element mounted on an information technology (IT) component, wherein the element draws a first power to cool the component; a load sensor to sense a second power that is drawn by the component to perform a first set of operations; a temperature sensor to sense a temperature of the component; and a controller to determine whether the second power drawn has changed based on the load sensor, wherein the component performs a second set of operations while drawing the second power, and in response to the changed second power, adjust the power supplied to the element and component based on the temperature and the power supplied to the component, such that the component continues to perform the second set of operations while drawing the adjusted power that is less than the power drawn before the adjustment.