Temperature-Based Coolant Flow Fault Detection Using Embedded Sensors
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Solution Overview
Problem
In data centers and supercomputers, cooling flow paths often experience partial blockage due to corrosion, bio growth, or debris, which reduces cooling capacity, and conventional methods using expensive sensors to detect malfunctions are not economically feasible for large and complex systems.
Innovation Solution
A system that utilizes embedded temperature sensors in computing devices to monitor temperature profiles of both devices and coolant, comparing initial and subsequent temperature differences to detect potential faults in coolant flow paths, such as blockages, without the need for extensive sensor installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional sensors are used to detect malfunctions in cooling flow paths, then measurement precision is improved, but device complexity and cost increase significantly
Solution Approach 1:
The computing devices themselves serve as the sensing elements by monitoring their own temperature. The temperature sensors already embedded in the computing devices are repurposed to detect cooling system faults, eliminating the need for separate flow path sensors. This self-service approach resolves the contradiction by using existing resources to achieve fault detection without adding device complexity.
Solution Approach 2:
The temperature sensors in the computing devices perform multiple functions: both monitoring device temperature for operational purposes and detecting cooling flow path blockages. This multi-functionality allows the same sensor to serve dual purposes, improving fault detection capability without requiring additional sensors or increasing system complexity.
2Reliability
If temperature sensors are installed in cooling flow paths to detect blockages, then reliability is improved, but ease of manufacture and installation deteriorate
Solution Approach 1:
The computing devices monitor their own cooling status through their existing temperature sensors, eliminating the need for separate sensors installed in cooling flow paths. This approach maintains reliability by using the device's own sensing capability while avoiding the manufacturing and installation complexity of adding sensors to the cooling system.
Solution Approach 2:
The fault detection function is extracted from the cooling system itself and placed in the computing devices. Instead of installing sensors in the cooling flow paths, the detection capability is taken out and embedded in the computing devices that are already equipped with temperature sensors for their own operation.
3Measurement precision
If extensive sensor installation is performed in cooling systems, then measurement precision is improved, but loss of time and cost increase
Solution Approach 1:
The computing devices use their own existing temperature sensors to monitor cooling effectiveness, eliminating the need for extensive sensor installation in cooling flow paths. This approach achieves measurement precision by utilizing already-installed sensors while avoiding the time and cost of additional installation work.
Solution Approach 2:
The temperature sensors are already installed in the computing devices before the cooling system is put into operation. This preliminary action means that fault detection capability is already in place without requiring additional installation time when the cooling system is deployed or maintained.
4Reliability
If conventional cooling monitoring methods are used, then ease of operation is maintained, but reliability deteriorates due to undetected blockages
Solution Approach 1:
The system continuously monitors temperature differences between inlet coolant and computing devices and provides feedback when anomalies are detected. This feedback mechanism improves reliability by enabling early fault detection while maintaining ease of operation through automated monitoring that requires minimal user intervention.
Solution Approach 2:
The patent replaces complex mechanical sensor installation in cooling flow paths with electronic temperature monitoring through software-based analysis of existing sensor data. This substitution maintains ease of operation by using digital monitoring rather than physical sensor installation while improving reliability through continuous automated fault detection.
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 provides early warning for potential issues in coolant flow paths, reducing the risk of overheating and maintenance costs by leveraging existing temperature sensors, enabling efficient detection of faults in complex cooling systems.
Implementation Method 1
control circuitry to measure temperature of a plurality of computing devices
Implementation Method 2
cooling arrangement for cooling the plurality of computing devices
Data Source
AI summary
An apparatus is provided which comprises: a first circuitry to receive a measurement of a first temperature of a section of a computing device during a first loading condition of the computing device, and to receive a measurement of a second temperature of the section of the computing device during a second loading condition of the computing device; and a second circuitry to detect a potential fault in a cooling system to cool the computing device, based at least in part on the first temperature and the second temperature.