Data Center Cooling Module Control for Redundancy and Sensor Failure
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Solution Overview
Problem
Data centers face challenges in efficiently cooling heat-generating computing devices, leading to performance compromise or component failure due to excessive temperatures, and existing cooling systems lack redundancy and scalability to handle power outages and sensor failures.
Innovation Solution
A data center cooling system comprising server racks, cooling modules with fans and coils, and a controller that adjusts fan speeds and valve positions based on temperature and differential pressure, ensuring continuous operation even with power or sensor failures, and allowing for scalable monitoring and control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cooling systems are implemented to maintain proper functioning of computing components, then component reliability is improved, but system complexity increases
Solution Approach 1:
The cooling system is divided into multiple independent cooling modules, each capable of operating autonomously. Each module includes its own controller, temperature sensors, and cooling components, allowing the system to segment cooling responsibilities across multiple units rather than relying on a single complex centralized system.
Solution Approach 2:
The system implements redundancy by providing backup cooling modules and backup power supplies. When a primary cooling module fails, a backup module automatically takes over, cushioning against the failure and maintaining continuous cooling operation without interruption.
2Reliability
If redundant cooling modules and backup power supplies are implemented, then system reliability is improved, but device complexity increases
Solution Approach 1:
Multiple cooling modules are merged into a coordinated system where they operate in parallel, sharing common control logic and communication protocols. The modules are designed to be functionally identical, allowing them to be managed as a unified system rather than separate complex entities.
Solution Approach 2:
Each cooling module is designed to be universal and interchangeable, capable of performing the same cooling function regardless of its position in the system. The modules can serve multiple purposes: primary cooling, backup cooling, and load balancing, maximizing the utility of each unit.
3Productivity
If cooling modules are controlled based on temperature and differential pressure, then cooling efficiency is improved, but measurement and control difficulty increases
Solution Approach 1:
The control system continuously monitors temperature and differential pressure measurements from sensors and adjusts fan speeds and valve positions accordingly. This closed-loop feedback mechanism automatically optimizes cooling efficiency by responding to real-time conditions without requiring manual intervention or complex manual calculations.
Solution Approach 2:
Each cooling module operates autonomously, with its controller automatically adjusting its own components based on local sensor readings. The system self-regulates without external control, performing measurements and adjustments independently to maintain optimal cooling efficiency.
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 system effectively maintains optimal temperatures, prevents cooling interruptions, and ensures continuous operation despite power or sensor failures, enhancing the reliability and scalability of data center cooling systems.
Implementation Method 1
a cooling coil, the cooling modules positioned to circulate a cooling airflow from the human-occupiable workspace, through the server racks, and to the warm air aisle
Implementation Method 2
Each of the plurality of cooling modules includes at least one fan and a cooling coil, the cooling modules positioned to circulate a cooling airflow
Data Source
Figure 1A~1B
Figure 2
Figure 3
AI summary
A data center cooling system includes a plurality of server racks aligned within a row in a human-occupiable workspace of a data center, the server racks supporting a plurality of heat-generating computing devices; a warm air aisle positioned adjacent the server racks opposite the human-occupiable workspace and including a warm air inlet adjacent to a back side of the row of server racks and a warm air outlet in fluid communication with a warm air plenum; a plurality of cooling modules each including at least one fan and a cooling coil; and a controller to perform operations including controlling the plurality of fans in the plurality of cooling modules to operate at a specified fan speed, and controlling a plurality of valves fluidly coupled to the plurality of cooling coils in the plurality of cooling modules to modulate to a specified valve position.