Redundant Cooling Architecture for Continuous Electronics Operation

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Solution Overview

Problem

Densely packed electronic data centers face heat dissipation challenges, leading to potential system failures and shutdowns if traditional thermal management systems fail or are taken offline, as they require all components to be shut down for maintenance or failure recovery.

Innovation Solution

Implementing a redundant cooling system with multiple cooling sources, such as liquid and air, where one source can continue to operate if the other fails, using independent heat exchangers and coolants to ensure continuous operation and reduce energy consumption by activating secondary coolants only when primary ones are unavailable.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a traditional thermal management system with a single cooling source is used, then the system structure is simple and energy consumption is low, but the system reliability deteriorates because the entire system must be shut down if the cooling source fails or requires maintenance

Engineering Contradiction:

Improvesystem continuityVSAvoidcooling system structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The cooling system is divided into multiple independent cooling sources (first cooling source and second cooling source), each capable of independently cooling the heat-generating component. This segmentation allows one cooling source to fail or be maintained while the other continues operation, resolving the contradiction between reliability and complexity by making the system modular and fault-tolerant.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A backup cooling source is provided in advance to cushion against the failure of the primary cooling source. The second cooling source stands ready to take over if the first cooling source fails or requires maintenance, ensuring continuous cooling operation without system shutdown. This prior cushioning approach directly addresses the reliability issue while maintaining manageable system complexity.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

2Reliability

If redundant cooling sources are implemented, then system reliability improves by preventing complete shutdowns, but device complexity and energy consumption increase due to maintaining multiple cooling systems

Engineering Contradiction:

Improvecooling system availabilityVSAvoidenergy consumption

Core Design Contradiction:

ReliabilityVSUse of energy by stationary object

Solution Approach 1:

The cooling system dynamically switches between the first and second cooling sources based on operational conditions. The control system activates only the necessary cooling source at any given time, reducing energy consumption while maintaining reliability. When one cooling source fails or requires maintenance, the system dynamically transitions to the other source, ensuring continuous operation without wasteful energy expenditure from running both systems simultaneously.

Inventive Principle:

Principle #15Dynamics

3Productivity

If densely packed electronic data centers are deployed to increase computing power, then productivity improves, but heat dissipation becomes more difficult leading to potential overheating and system failures

Engineering Contradiction:

Improvecomputing power densityVSAvoidheat dissipation

Core Design Contradiction:

ProductivityVSTemperature

Solution Approach 1:

The cooling system is segmented into multiple independent cooling sources that can be distributed across the densely packed electronic components. Each cooling source can target specific heat-generating components, enabling effective heat dissipation in high-density configurations. This segmentation allows the system to maintain adequate cooling capacity even as computing power density increases, resolving the contradiction between productivity and temperature control.

Inventive Principle:

Principle #1Segmentation

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

Prevents complete or partial system shutdowns by maintaining sufficient cooling even if one cooling source fails, reducing energy consumption and ensuring continuous operation of critical components.

Implementation Method 1

a first cooling source and a second cooling source for transferring heat away from a heat-generating component

Methodology Applied

Scientific EffectHeat transfer: Conduction (thermal)

Implementation Method 2

the first cooling source includes a first heat exchanger and the second cooling source includes a second heat exchanger

Methodology Applied

Scientific EffectHeat exchanger: Heat Exchanger

Data Source

PatentUS8395896B2Redundant cooling systems and methods

Publication Date: 2013.03.12 VALTRUS INNOVATIONS LTD

AI summary

Redundant cooling systems and methods are disclosed. In an exemplary embodiment, a method for redundant cooling system of computer systems and other electronics may comprise thermally connecting a cooling fluid to one or more heat-generating components to absorb heat from the heat-generating components during operation. The method may also comprise thermally connecting the cooling fluid to a primary coolant and a secondary coolant. The method may also comprise exchanging heat between the cooling fluid and the primary coolant or the secondary coolant to remove heat from the cooling fluid even if one of the cooling sources is unavailable.