Chilled Air Filtration for Corrosion Control in Server Chassis

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Solution Overview

Problem

Information handling systems face premature failure due to corrosion caused by chemically reactive gases and humidity, which can lead to increased maintenance costs and reduced service life.

Innovation Solution

Implementing chilled air filters to selectively remove humidity from airflow, thereby reducing the corrosiveness of gases and mitigating corrosion within the systems, and using environmental managers to monitor and control the activation of these filters based on environmental conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If chilled air filters are activated to reduce humidity levels, then corrosion rates are reduced and service life is extended, but energy consumption increases

Engineering Contradiction:

Improveservice lifeVSAvoidenergy consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The chilled air filter operation is made dynamic through conditional activation. The system continuously monitors environmental conditions (humidity levels, temperature, corrosion risk) and adjusts the filter operation state accordingly - activating when conditions warrant corrosion protection and deactivating when conditions are acceptable, thereby optimizing the balance between reliability and energy consumption

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system changes the operational parameters of the chilled air filter based on monitored environmental conditions. By adjusting the filter's activation state (on/off) in response to varying humidity levels and corrosion risk parameters, the system achieves adaptive corrosion protection while minimizing unnecessary energy consumption during low-risk periods

Inventive Principle:

Principle #35Parameter changes

2Reliability

If chilled air filters are continuously activated to minimize corrosion, then component service life is extended, but operational costs increase

Engineering Contradiction:

Improveservice lifeVSAvoidoperational costs

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

The system implements a feedback control mechanism where environmental sensors continuously monitor conditions (humidity, temperature, corrosion indicators) and provide feedback to the control logic. This feedback loop enables the system to adjust chilled air filter operation in real-time, activating protection only when environmental conditions indicate corrosion risk, thereby reducing operational costs while maintaining adequate service life protection

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

Instead of continuous operation, the chilled air filter is activated periodically based on monitored environmental conditions. The system checks environmental parameters at regular intervals and activates the filter only during periods when corrosion risk is detected, converting continuous energy consumption into periodic, condition-based operation that reduces overall operational costs

Inventive Principle:

Principle #19Periodic action

3Reliability

If environmental monitoring and control systems are implemented, then corrosion protection is optimized, but device complexity increases

Engineering Contradiction:

Improvecorrosion protectionVSAvoidsystem complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system is designed to be self-managing through automated environmental monitoring and control. Sensors continuously monitor conditions and automatically trigger appropriate responses (filter activation, ventilation adjustments) without requiring manual intervention or complex external control systems, thereby achieving optimized corrosion protection while limiting the increase in device complexity through self-service operation

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

This approach reduces the rates of corrosion, extends the service life of components, lowers operational costs by minimizing energy consumption for gas conditioning, and prevents premature failures in information handling systems.

Implementation Method 1

a chilled air filter that reduces a humidity level of a portion of an airflow when the chilled air filter is in an active state

Methodology Applied

Scientific EffectCondensation: Condensation

Implementation Method 2

The portion of the airflow thermally manages the computing component

Methodology Applied

Scientific EffectHeat transfer: Conduction (thermal)

Data Source

PatentUS11513934B2System and method for service life management by actively reducing corrosive interactions

Publication Date: 2022.11.29 DELL PROD LP

AI summary

An information handling system includes a computing device, a computing component of the computing device that is housed in a chassis, and a chilled air filter that reduces a humidity level of a portion of an airflow when the chilled air filter is in an active state. The portion of the airflow thermally manages the computing component. The airflow is received by the chassis via an air receiving exchange and exhausted by the chassis via an air expelling exchange.