Negative pressure air handling system

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Solution Overview

Problem

Data centers face challenges in efficiently managing power distribution and cooling due to high electrical power demands and waste heat generation, leading to increased costs and complexity, especially with the need for redundant power systems and air conditioning, and the resource-intensive process of expanding computing capacity.

Innovation Solution

Implementing a data center design with external air handling systems that create negative pressure to draw air through computing devices, utilizing free cooling methods like direct evaporative cooling, and streamlining power systems by eliminating backup power sources in certain configurations to reduce infrastructure costs and enhance operational efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If forced air systems and air conditioning are used to maintain temperature in data centers, then temperature control is improved, but cost and complexity increase substantially

Engineering Contradiction:
Improvetemperature controlVSAvoidsystem complexity
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The patent extracts the cooling function from traditional forced air HVAC systems and implements it through passive evaporative cooling structures integrated directly into the data center architecture, eliminating complex mechanical cooling equipment while maintaining temperature control

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The system uses natural evaporative cooling where water evaporates automatically to cool air without requiring mechanical compression or complex control systems, allowing the environment to self-regulate temperature through phase change of water

Inventive Principle:
Principle #25Self-service

2Reliability

If full redundant back-up power systems are implemented for each server room, then reliability is improved, but capital costs and operational costs increase significantly

Engineering Contradiction:
Improvepower system reliabilityVSAvoidpower system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent consolidates power distribution architecture to share backup power resources across multiple server rooms rather than providing dedicated redundant systems for each room, reducing overall system complexity while maintaining reliability through centralized backup infrastructure

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The backup power system is designed to serve multiple server rooms simultaneously, allowing a single backup infrastructure to provide universal protection across the data center rather than requiring room-specific redundant systems

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Object-affected harmful factors

If traditional building construction and HVAC installation are used for data centers, then environmental protection is provided, but construction costs and time investment increase substantially

Engineering Contradiction:
Improveenvironmental protectionVSAvoidconstruction ease
Core Design Contradiction:
Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

The patent divides the data center into modular units that can be constructed and deployed independently, allowing incremental construction and reducing overall project complexity while maintaining environmental controls through standardized modular designs

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system incorporates pre-configured evaporative cooling structures and environmental protection features during the design phase that simplify subsequent construction and installation processes, reducing on-site work requirements

Inventive Principle:
Principle #10Preliminary action

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 energy consumption, lowers operational costs, and allows for flexible expansion of computing capacity by optimizing air handling and power distribution, enabling more efficient data center operations with varying computing demands.

Implementation Method 1

The air handling system creates a negative pressure to draw air through computing devices

Methodology Applied
Scientific EffectNegative pressure: Pressure Gradient

Implementation Method 2

utilizing free cooling methods like direct evaporative cooling

Methodology Applied
Scientific EffectEvaporative cooling: Evaporative Cooler

Data Source

PatentUS10531597B1Negative pressure air handling system
Publication Date: 2020.01.07 AMAZON TECH INC
  • US10531597B1 patent drawing
  • US10531597B1 patent drawing
  • US10531597B1 patent drawing

AI summary

A data center includes two or more rack computing systems and an air handling system. The rack computing systems may each include racks and computing devices mounted in the rack. The air handling system includes one or more air moving devices external to the one or more racks. The air moving devices create a negative pressure relative to ambient air at air inlets to the racks to draw air from the inlets and through computing devices in the racks.