Closed-loop cooling system and method

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Solution Overview

Problem

Conventional data centers face inefficiencies in cooling systems, with air conditioning units consuming more than half of the total power, limiting their ability to support high-density computing systems due to inadequate cooling capacity.

Innovation Solution

A water-based closed-loop cooling system that utilizes naturally cold water as a heat sink in heat exchange systems, reducing power consumption by circulating water through heat exchangers to absorb heat from computer systems, thereby maintaining suitable operating temperatures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If air conditioning units are used to cool computer systems, then cooling capacity is provided, but power consumption increases significantly (accounting for more than half of total power consumed)

Engineering Contradiction:
Improvecooling capacityVSAvoidpower consumption
Core Design Contradiction:
TemperatureVSUse of energy by moving object

Solution Approach 1:

The patent introduces water as an intermediary cooling medium that transfers heat from computer systems more efficiently than air conditioning units. The water-based cooling system acts as a mediator between the heat-generating computer systems and the external environment, significantly reducing power consumption while maintaining effective cooling capacity.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The invention replaces the mechanical air conditioning system with a water-based thermal conduction system. Instead of using mechanical refrigeration cycles, the patent utilizes water's high specific heat capacity and thermal conductivity to directly absorb and transport heat away from computer systems, eliminating the need for energy-intensive air conditioning machinery.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Temperature

If air conditioning units are used to maintain operating temperatures, then cooling is provided, but device complexity increases due to the need for extensive cooling infrastructure

Engineering Contradiction:
Improveoperating temperature maintenanceVSAvoidcooling infrastructure
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The patent employs a hydraulic cooling system where water circulates through pipes and heat exchangers to remove heat from computer systems. This liquid-based thermal management approach is simpler and more efficient than the complex mechanical air conditioning infrastructure, utilizing fluid dynamics and thermal conduction principles to maintain operating temperatures.

Inventive Principle:
Principle #29Pneumatics and hydraulics

3Temperature

If traditional air conditioning systems are used, then cooling is provided, but cooling efficiency decreases due to energy loss

Engineering Contradiction:
Improvecooling effectivenessVSAvoidcooling efficiency
Core Design Contradiction:
TemperatureVSLoss of energy

Solution Approach 1:

The patent changes the thermal management parameter from air-based cooling to water-based cooling. Water's superior thermal properties (higher specific heat capacity and thermal conductivity) enable more efficient heat transfer, reducing energy loss during the cooling process while maintaining effective temperature control of computer systems.

Inventive Principle:
Principle #35Parameter changes

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 significantly reduces power consumption and enhances cooling efficiency, enabling the support of high-density computing systems by leveraging natural water resources, thus addressing the inefficiencies of traditional air conditioning units.

Implementation Method 1

a single or plurality of heat exchangers; wherein the single or plurality of water pumps are caused to pump water in through the water intake pipes and out through the water exhaust pipes; and wherein the coolant distribution unit is caused to circulate stored coolant through the coolant heat exchange pipes

Methodology Applied
Scientific EffectHeat exchange: Heat Exchanger

Implementation Method 2

such that the circulated cold water is caused to absorb heat from the circulated coolant through the single or plurality of heat exchangers

Methodology Applied
Scientific EffectHeat absorption: Absorption (physical)

Implementation Method 3

a single or plurality of water pumps; wherein the single or plurality of water pumps are caused to pump water in through the water intake pipes and out through the water exhaust pipes

Methodology Applied
Scientific EffectPumping: Pump

Data Source

PatentUS10470342B2Closed-loop cooling system and method
Publication Date: 2019.11.05 NAUTILUS TRUE LLC
  • US10470342B2 patent drawing
  • US10470342B2 patent drawing

AI summary

A water-based closed-loop cooling system employed to cool waterborne data center facility generally comprise a plurality of filtered water intake pipes, a plurality of filtered water exhaust pipes, a plurality of heat exchangers, a plurality of closed-loop cooling systems or closed-loop coolant distribution units that may use freshwater as a coolant, and a plurality of piping systems. The energy-efficient water based closed-loop cooling system and method described may use naturally occurring cold water as a heat sink in a plurality of heat exchange systems. The systems and methods described in this document may be employed to provide an energy-efficient water-based closed-loop cooling system to maintain interior ambient conditions suitable for proper operation of the plurality of computer systems therein.