Modular Cold-Aisle Cooling Units for Scalable Data Center Expansion

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Solution Overview

Problem

Data centers face challenges in efficiently managing waste heat and scaling cooling capacity to match fluctuating computing demands, leading to high operational costs and complexity due to reliance on traditional HVAC systems.

Innovation Solution

The implementation of modular cooling units that seal cold aisles and provide incremental cooling by drawing in fresh and recycled air, using evaporative coolers and cooling coils, allowing for flexible and efficient cooling distribution without unnecessary cooling of unused space.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional HVAC systems are used to cool data centers, then cooling capacity can be provided, but capital and operating costs increase substantially

Engineering Contradiction:
Improvecooling capacityVSAvoidHVAC system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The HVAC system is divided into multiple portable air handling units that can be independently deployed and positioned throughout the data center. Each unit serves a specific zone or rack group, replacing the monolithic traditional HVAC system with modular, distributed cooling units that reduce overall system complexity while maintaining adequate cooling capacity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The portable air handling units are designed to be movable and reconfigurable, allowing the cooling system to dynamically adapt to changing data center layouts and computing loads. This dynamic capability enables the system to maintain effectiveness without requiring substantial capital investment in fixed infrastructure.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If HVAC capacity is increased to support future computing demands, then future expansion is enabled, but capital costs are tied up in unnecessary cooling capacity

Engineering Contradiction:
Improvefuture expansion capabilityVSAvoidHVAC capacity
Core Design Contradiction:
Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The system uses movable portable air handling units that can be easily added, removed, or repositioned based on actual computing demands. This dynamic configuration allows the data center to scale cooling capacity incrementally without committing to large upfront HVAC installations, enabling future expansion while avoiding over-provisioning.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The cooling system's capacity parameters can be adjusted by adding or removing portable units rather than being fixed by initial HVAC design. This allows the quantity of cooling capacity to change flexibly with computing workloads, preventing capital from being tied up in excessive cooling infrastructure.

Inventive Principle:
Principle #35Parameter changes

3Ease of operation

If portable air handling units are used, then system flexibility and ease of reconfiguration improve, but device complexity increases

Engineering Contradiction:
Improvesystem reconfiguration easeVSAvoidportable unit complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

Each portable air handling unit is designed as a universal module that can be deployed in multiple locations and configurations within the data center. These multi-functional units handle both cooling and air circulation functions, and can be easily repositioned to accommodate different rack arrangements, providing operational flexibility without requiring complex custom systems for each scenario.

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

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 enables efficient and adaptable cooling solutions, reducing energy consumption and operational costs by providing targeted cooling to areas of need, while allowing for easy expansion of cooling capacity as computing demands increase.

Implementation Method 1

The modular cooling units may include evaporative coolers, cooling coils, and/or other cooling devices

Methodology Applied
Scientific EffectEvaporative cooling: Evaporative Cooler

Implementation Method 2

The modular cooling units may include evaporative coolers, cooling coils, and/or other cooling devices

Methodology Applied
Scientific EffectHeat exchange: Heat Exchanger

Data Source

PatentUS10271462B1Rapid deploy air cooling system
Publication Date: 2019.04.23 AMAZON TECH INC
  • US10271462B1 patent drawing
  • US10271462B1 patent drawing
  • US10271462B1 patent drawing

AI summary

A data center includes rack mounted computing systems arranged in rows with one or more cold aisles between success rows of rack mounted computing systems. A modular cooling unit is configured to mount above one of the cold aisles and form a ceiling for the cold aisle and partially seal the cold aisle from other environments in the data center. The modular cooling unit draws air from the other environments, cools the air, and directs the cooled air into the cold aisle. Modular cooling units may be incrementally added to a data center as additional rows of rack computing systems are added to the data center.