Server Cabinet Louver Assembly for Airflow Management

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Solution Overview

Problem

Data centers face inefficiencies in directing heated airflow from server cabinets to HVAC systems, leading to air turbulence and reduced cooling effectiveness due to advancing server power consumption and heat generation.

Innovation Solution

A louver assembly system that can be easily installed on existing server cabinets to direct heated air upwards towards the HVAC system, reducing turbulence and improving airflow efficiency, while also allowing for the direction of cooled air from the HVAC system into the server cabinets.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If servers generate more power and heat at higher velocity, then cooling demand increases, but air turbulence increases and hampers natural rise of hot air

Engineering Contradiction:
Improveserver power consumptionVSAvoidairflow return to HVAC system
Core Design Contradiction:
PowerVSEase of operation

Solution Approach 1:

The patent introduces an intermediary device (exhaust air redirector or louver system) installed at the exhaust side of server cabinets to mediate the airflow. This intermediary component redirects the high-velocity exhaust air upward toward the HVAC return, preventing it from creating turbulence that would hamper the natural rise of hot air from adjacent servers.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If superheated air is blown into the exhaust of other servers, then cooling efficiency decreases, but server density increases

Engineering Contradiction:
Improveserver densityVSAvoidsuperheated air blowing into adjacent servers
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent extracts the problematic superheated exhaust air flow from the horizontal path that would lead it into adjacent server exhausts. By installing redirectors or louvers at the exhaust side, the hot air is extracted from the normal flow path and redirected upward to the HVAC return, eliminating the harmful effect on neighboring servers while maintaining high server density.

Inventive Principle:
Principle #2Taking out (Extraction)

3Device complexity

If natural rise of heat is relied upon for airflow return, then system complexity is low, but cooling efficiency decreases with modern high-power servers

Engineering Contradiction:
Improveairflow management systemVSAvoidcooling efficiency
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The patent applies dynamics by making the exhaust air redirectors or louvers adjustable rather than fixed. These components can be dynamically positioned or angled to optimize airflow patterns as server power consumption and heat generation change, allowing the system to adapt to modern high-power servers while maintaining relatively simple hardware.

Inventive Principle:
Principle #15Dynamics

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 louver assembly enhances the natural rise of heated air towards the HVAC system, reduces air turbulence, and improves cooling efficiency by optimizing airflow patterns, thus lowering energy costs and enhancing data center operations.

Implementation Method 1

direct heated air from an exhaust side of the server cabinet to aid with the natural rise of heat towards an HVAC system

Methodology Applied
Scientific EffectNatural rise of heat: Free Convection

Data Source

PatentUS11510344B2Computer server cabinet portable louver system
Publication Date: 2022.11.22 TECHNOGUARD INC
  • US11510344B2 patent drawing
  • US11510344B2 patent drawing
  • US11510344B2 patent drawing

AI summary

A louver assembly for removable connection to a server cabinet, the louver assembly including at least one removable louver system and each louver system including a louver frame having an opening, a plurality of louvers removably connected to the louver frame and extending across the opening of the louver frame and at least one connector for removably attaching the removable louver system to the server cabinet. The louvers may be adjustable to more efficiently move air toward an inlet of an HVAC system or from an exhaust of the HVAC system to the server cabinet.