Exhaust Duct Redirection for Modular Data Center Cooling

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Solution Overview

Problem

Cooling systems in modular data centers face challenges in efficiently managing exhaust air, particularly in outdoor-exposed settings where environmental conditions such as rain, wind, ice, and small animals pose obstacles, and re-entrainment of exhausted air is a concern.

Innovation Solution

A modular fluid-handling system comprising an air-handling and mixing unit with a plenum and cooling units, where dampers modulate airflow to control temperature and prevent re-entrainment, and an exhaust duct redirects air from a horizontal to a vertical direction to prevent re-circulation, while protecting against environmental elements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If exhaust air is discharged horizontally in outdoor-exposed settings, then the exhaust system is simpler to install, but re-entrainment of exhausted air back into the cooling system occurs and environmental elements can contaminate the exhaust

Engineering Contradiction:
Improveexhaust system structureVSAvoidprevention of re-entrainment and environmental contamination
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The exhaust duct transitions the airflow from horizontal discharge to vertical discharge by directing exhaust air upward at an angle. This dimensional change in airflow direction prevents re-entrainment into the cooling system and reduces exposure to environmental elements while maintaining system simplicity

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The exhaust system incorporates movable components including a movable bottom panel and adjustable damper that can be positioned at different angles. This dynamic adjustment capability allows optimization of exhaust performance under varying environmental conditions while preventing contamination

Inventive Principle:
Principle #15Dynamics

2Productivity

If the exhaust module is exposed to outdoor environmental conditions, then natural convection aids exhaust discharge, but the system becomes vulnerable to rain, wind, ice, dust, pollen, snow, and small animals

Engineering Contradiction:
Improveexhaust discharge efficiencyVSAvoidenvironmental contamination
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The exhaust duct incorporates a flexible movable bottom panel that can be adjusted to different positions and angles. This flexible component allows the system to adapt to environmental conditions while maintaining protection against harmful factors through proper positioning and sealing

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The system uses adjustable dampers and movable panels that can be dynamically positioned to optimize exhaust performance while preventing entry of environmental contaminants. The dynamic adjustment allows the system to respond to varying weather conditions

Inventive Principle:
Principle #15Dynamics

3Productivity

If dampers are modulated to control airflow in response to environmental conditions, then cooling efficiency is optimized, but the control system becomes more complex

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

Solution Approach 1:

The damper system is designed to automatically respond to environmental conditions through modulation based on temperature and airflow sensors. The system self-regulates airflow without requiring complex external control mechanisms, achieving optimized cooling efficiency through autonomous 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

The system effectively manages exhaust air, maintaining efficient airflow and preventing re-entrainment, even in harsh outdoor conditions, thereby ensuring optimal cooling and operation of information handling resources.

Implementation Method 1

information handling systems are often cooled via the impingement of air driven by one or more air movers

Methodology Applied
Scientific EffectForced Convection: Forced Convection

Implementation Method 2

cooling systems configured to cool such information handling resources

Methodology Applied
Scientific EffectHeat Transfer: Convection

Implementation Method 3

an exhaust duct configured to redirect air horizontally to vertically

Methodology Applied
Scientific EffectGravity: Gravitation

Implementation Method 4

redirect air flowing in the substantially horizontal direction from the exhaust source in a substantially vertical direction

Methodology Applied
Scientific EffectMomentum: Conservation of Momentum

Data Source

PatentUS20140038510A1System and method for directing exhaust from a modular data center
Publication Date: 2014.02.06 DELL PROD LP
  • US20140038510A1 patent drawing
  • US20140038510A1 patent drawing
  • US20140038510A1 patent drawing

AI summary

In accordance with embodiments of the present disclosure, a modular fluid-handling system may comprise a fluid-handling unit and an exhaust duct coupled to and in fluid communication with the fluid-handling unit. The fluid-handling unit may be configured to exhaust air from an exhaust source in a substantially horizontal direction. The exhaust duct may be configured to redirect air flowing in the substantially horizontal direction from the exhaust source in a substantially vertical direction.