Node-Specific Pump Targeted Cooling Liquid Flow
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Solution Overview
Problem
Current liquid cooling systems in computing environments maintain a fixed flow rate, leading to wasted flow and a lower temperature differential between inlet and exhaust fluid, which results in reduced energy efficiency and waste heat recovery, especially in varying workloads and heat generation.
Innovation Solution
Implementing a targeted cooling system with node-specific pumps in the liquid cooling loop, which increases the liquid flow rate in response to detected increased heating conditions, thereby achieving a higher temperature differential between inlet and outlet lines and enhancing waste heat recovery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a fixed flow rate is used in the liquid cooling system, then the system operates reliably, but the temperature differential between inlet and exhaust fluid decreases and energy efficiency is reduced
Solution Approach 1:
The patent implements dynamic flow rate adjustment by replacing fixed flow rate operation with variable speed pumps controlled by feedback from temperature sensors and workload detectors. The system continuously adapts the liquid flow rate to match actual heat generation, enabling the temperature differential to be maximized under varying workload conditions while maintaining system reliability.
Solution Approach 2:
The system incorporates feedback mechanisms through temperature sensors and workload detectors that monitor system conditions in real-time. This feedback is used by the control system to adjust the pump speed and liquid flow rate dynamically, ensuring the temperature differential is optimized based on actual thermal conditions and workload requirements.
2Loss of energy
If a fixed flow rate is maintained, then the system is simple to operate, but waste heat recovery is reduced due to lower temperature differential
Solution Approach 1:
The system transitions from static fixed flow rate operation to dynamic variable flow rate control, allowing the liquid cooling system to optimize the temperature differential for waste heat recovery based on actual thermal conditions. This dynamic adjustment increases waste heat recovery potential while the added complexity is managed through automated control systems.
Solution Approach 2:
The patent changes the operating parameters of the liquid cooling system by implementing variable flow rates instead of fixed flow rates. This parameter change enables the system to maintain optimal temperature differentials for waste heat recovery across different workload conditions, transforming the system from a static to a adaptive thermal management solution.
3Temperature
If increased liquid flow rate is applied to all nodes, then cooling capacity is sufficient, but energy efficiency decreases due to wasted flow on low-heat nodes
Solution Approach 1:
The patent implements local quality control by enabling independent flow rate adjustment for different nodes or regions of the system based on their specific thermal conditions and workload. Instead of applying uniform high flow rates to all nodes, the system tailors the liquid flow to each node's actual cooling requirements, reducing energy waste on low-heat nodes while maintaining adequate cooling capacity where needed.
Solution Approach 2:
The system segments the liquid cooling control into node-specific or region-specific flow rate adjustments, allowing independent optimization of cooling flow for each segment based on its thermal characteristics. This segmentation enables the system to allocate cooling resources efficiently, directing higher flow rates only to nodes generating significant heat while reducing flow to nodes with lower thermal loads.
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 increases cooling efficiency and maximizes waste heat recovery by dynamically adjusting liquid flow based on workload and heat generation, improving energy and water efficiency in computing systems.
Implementation Method 1
The server system is cooled using liquid such as water... increasing liquid flow rate at the node-specific pump... achieving a higher temperature differential between an inlet and an outlet line
Data Source
AI summary
Targeted cooling in a liquid cooling system including detecting, for a node cooled by the liquid cooling system, a condition indicating increased heating, wherein the liquid cooling system includes a primary pump and a node-specific pump positioned in a loop of the liquid cooling system between the primary pump and the node; and responsive to detection of the condition, increasing cooling to the node by increasing liquid flow rate at the node-specific pump positioned in the loop of the liquid cooling system between the primary pump and the node, thereby achieving a higher temperature differential between an inlet and an outlet line and increased waste heat recovery.