Targeted Data Center Cooling via Localized Air Distribution

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Solution Overview

Problem

Data centers face significant costs due to high electrical power consumption and heat generation from thousands of microprocessors, requiring substantial energy for both cooling and heating, which can lead to increased errors and inefficiencies.

Innovation Solution

A method and system for targeted cooling in data centers that involves circulating ambient air across rack-mounted electronic devices, monitoring temperatures, and providing cooler-than-ambient air through air distribution wands or fans when a high cooling load is sensed, allowing for efficient heat removal and reduced energy consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If traditional centralized cooling systems are used to cool all equipment in data centers, then heat removal capability is improved, but energy consumption increases

Engineering Contradiction:
Improveheat removal capabilityVSAvoidenergy consumption
Core Design Contradiction:
TemperatureVSUse of energy by moving object

Solution Approach 1:

The cooling system is segmented into localized cooling units distributed throughout the data center, each serving specific hot spots rather than a single centralized system cooling the entire facility. This segmentation allows cooling capacity to be applied only where needed, reducing overall energy consumption while maintaining adequate heat removal capability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements local cooling zones with adjustable temperature settings for different areas based on their specific thermal loads and equipment requirements. Each cooling unit can be independently controlled to provide appropriate cooling levels locally, avoiding the energy waste of uniformly cooling entire facilities when only specific areas require intensive cooling.

Inventive Principle:
Principle #3Local quality

2Temperature

If more cooling capacity is provided to remove heat from data centers, then heat removal capability is improved, but operating costs increase

Engineering Contradiction:
Improveheat removal capabilityVSAvoidoperating costs
Core Design Contradiction:
TemperatureVSLoss of energy

Solution Approach 1:

The cooling system employs dynamic control mechanisms that continuously monitor temperature, humidity, and thermal load conditions to adjust cooling capacity in real-time. This dynamic adjustment ensures adequate heat removal while minimizing energy consumption by reducing cooling output when thermal loads decrease, thereby lowering operating costs.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system incorporates feedback loops with temperature sensors and control mechanisms that respond to actual thermal conditions. When temperatures rise above setpoints, cooling capacity is increased; when temperatures are within acceptable ranges, cooling is reduced or shut off, optimizing the balance between heat removal capability and operating costs.

Inventive Principle:
Principle #23Feedback

3Ease of operation

If cooling is provided uniformly across all equipment, then temperature control is simplified, but cooling efficiency decreases

Engineering Contradiction:
Improvetemperature control simplicityVSAvoidcooling efficiency
Core Design Contradiction:
Ease of operationVSUse of energy by moving object

Solution Approach 1:

The facility is divided into multiple independently controlled cooling zones, each managed by its own control system. This segmentation maintains operational simplicity within each zone while improving overall cooling efficiency by avoiding the waste of cooling areas that do not require it.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different zones can have different temperature setpoints and cooling strategies tailored to their specific equipment requirements and thermal characteristics. This local customization improves cooling efficiency by matching cooling provision to actual needs, while each zone remains independently controllable for operational simplicity.

Inventive Principle:
Principle #3Local quality

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 finer-tuned control over cooling, reducing overall cooling costs and preventing overheating, while maintaining safe operating temperatures for electronic components, thus improving data center efficiency and reducing energy expenditure.

Implementation Method 1

The ambient air may be supplied through cooling coils that receive warmed air from a common warm-air plenum

Methodology Applied
Scientific EffectHeat exchange: Heat Exchanger

Implementation Method 2

The ambient air can be circulated by individually controlled circulation fans mounted to one or more of the electronic devices

Methodology Applied
Scientific EffectForced convection: Forced Convection

Data Source

PatentUS11297737B2Targeted cooling for datacenters
Publication Date: 2022.04.05 GOOGLE LLC
  • US11297737B2 patent drawing
  • US11297737B2 patent drawing
  • US11297737B2 patent drawing

AI summary

A method of cooling electronic equipment is disclosed and includes substantially continuously circulating ambient air across a plurality of rack-mounted electronic devices, monitoring the temperature of air in or around a group of devices in the plurality of rack-mounted electronic devices, and providing substantially cooler-than-ambient air to the group of devices when the monitored air temperatures rises above a set value.