Coolant Distribution Unit Feedback Control for Overheating Prevention

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Solution Overview

Problem

Existing coolant distribution units in data rooms and server rooms face challenges in efficiently regulating temperature and fluid flow to prevent overheating of components, which can lead to malfunctions.

Innovation Solution

A controller for a coolant distribution unit (CDU) that includes a control system with a processor and memory, coupled to valves and sensors, to monitor and modulate fluid flow and temperature, ensuring continuous and efficient cooling by adjusting the flow through a closed-loop system.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If coolant distribution units are used to cool components in data rooms, then temperature regulation is achieved, but efficient control of fluid flow and temperature is lacking leading to overheating risks

Engineering Contradiction:
Improvecooling temperatureVSAvoidoverheating prevention
Core Design Contradiction:
TemperatureVSReliability

Solution Approach 1:

The control system continuously monitors temperature and fluid flow parameters from sensors and automatically adjusts valve positions and pump operations to maintain optimal cooling conditions. This closed-loop feedback mechanism ensures temperature regulation reliability by detecting deviations and correcting them in real-time, preventing overheating of components.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system dynamically adjusts fluid flow rates and temperature setpoints based on real-time operational conditions. The controller modifies valve positions and pump speeds adaptively rather than using fixed parameters, allowing the cooling system to respond to changing thermal loads and maintain effective temperature control under varying conditions.

Inventive Principle:
Principle #15Dynamics

2Productivity

If manual control of coolant distribution is used, then system simplicity is maintained, but temperature regulation efficiency decreases

Engineering Contradiction:
Improvecooling efficiencyVSAvoidcontrol system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The control system autonomously manages coolant distribution without requiring manual intervention. Sensors continuously monitor temperature and flow conditions, and the controller automatically adjusts valves and pumps to optimize cooling performance. This self-regulating capability improves cooling efficiency while the modular design keeps system complexity manageable through standardized components and control logic.

Inventive Principle:
Principle #25Self-service

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 controller maintains optimal cooling temperatures and fluid flow rates, preventing overheating and ensuring the proper functioning of data room components by continuously monitoring and adjusting the coolant distribution, thereby reducing the risk of malfunctions.

Implementation Method 1

a heat exchanger in thermal communication with the supply fluid loop and the cooling fluid loop

Methodology Applied
Scientific EffectHeat transfer: Heat Exchanger

Data Source

PatentUS20250365901A1System and method for controlling a coolant distribution unit
Publication Date: 2025.11.27 STELLAR ENERGY AMERICAS
  • US20250365901A1 patent drawing
  • US20250365901A1 patent drawing
  • US20250365901A1 patent drawing

AI summary

A system having at least one processor and a non-transitory computer-readable storage medium having instructions stored. The instructions, when executed by the at least one processor, cause the at least one processor to perform operations comprising receiving a temperature of a cooling fluid in a cooling fluid loop of a coolant distribution unit, comparing the temperature to a predetermined temperature, resulting in a comparison, and modulating a valve based on the comparison to adjust a flow of a supply fluid in a supply fluid loop of the coolant distribution unit, wherein modulating the valve increases or decreases the temperature of the cooling fluid. A method controls the valve.