Ambient Air Cooling System for Computing Facilities Using Device Fans
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Solution Overview
Problem
Large computing facilities face significant heat management challenges due to high power consumption by computing devices, which traditional cooling systems struggle to address effectively, especially in environments with varying temperatures and humidity levels.
Innovation Solution
A passive cooling system that utilizes external ambient air, driven by the fans of computing devices, to supply cool air and exhaust heated air, with a mixing damper and turbulators to control airflow and temperature, minimizing pressure losses and preventing vortices, and potentially recirculating heated air to adjust temperature and humidity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional HVAC systems are used to cool computing facilities, then cooling capacity is provided, but energy consumption increases and system complexity increases
Solution Approach 1:
The computing devices themselves serve the cooling function by using their internal fans to draw ambient air through heat-generating components. The system leverages the existing operational components (fans) of the computing devices to perform the cooling function, eliminating the need for separate HVAC systems and reducing overall energy consumption.
Solution Approach 2:
The cooling function is extracted from the computing devices and implemented as a separate architectural feature. The facility design includes dedicated air inlets, air filters, and airflow pathways that allow ambient air to be supplied directly to computing devices, separating the cooling infrastructure from the computing equipment itself.
2Temperature
If conventional HVAC systems are used to cool computing facilities, then cooling capacity is provided, but device complexity increases
Solution Approach 1:
The cooling function is extracted from the computing devices and implemented as a separate architectural feature. The facility design includes dedicated air inlets, air filters, and airflow pathways that allow ambient air to be supplied directly to computing devices, separating the cooling infrastructure from the computing equipment itself.
Solution Approach 2:
The ambient air cooling system serves multiple functions: it cools heat-generating components, filters airborne particles through air filters, and utilizes the existing fan infrastructure of computing devices. This multi-functional approach reduces the need for additional specialized equipment.
3Temperature
If airflow is driven by dedicated fans, then cooling effectiveness is improved, but energy consumption increases
Solution Approach 1:
The computing devices themselves serve the cooling function by using their internal fans to draw ambient air through heat-generating components. The system leverages the existing operational components (fans) of the computing devices to perform the cooling function, eliminating the need for separate HVAC systems and reducing overall energy consumption.
4Use of energy by moving object
If ambient air is used for cooling, then energy consumption is reduced, but temperature control precision decreases
Solution Approach 1:
The system provides localized cooling by directing ambient air flow specifically through heat-generating components of computing devices. Air filters are positioned to filter air at the point of entry, and the facility architecture creates dedicated airflow pathways that ensure precise delivery of cool air to where it is most needed, maintaining temperature control precision despite using simple ambient air cooling.
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 system efficiently cools computing devices by maximizing airflow and minimizing pressure drops, maintaining optimal operating temperatures for computing devices while reducing energy consumption and operational stress on fans.
Implementation Method 1
Some, most, or substantially each of the computing devices include a fan that is capable of moving the cool air across one or more heat generating components of the computing device to cool the heat generating components
Implementation Method 2
The heated air flows into the exhaust air space from the computing devices
Implementation Method 3
The air filter assembly is configured to filter the cool air that is supplied to the computing devices from the air supply space
Data Source
AI summary
A system for cooling computing devices within a facility includes an air inlet that delivers cool air to a supply air space within the facility, an exhaust air damper that is configured to exhaust heated air from an exhaust air space within the facility, and computing devices that are arranged within the facility to at least partially partition the supply air space from the exhaust air space. The system also includes an air filter that is configured to filter the cool air and a mixing damper that is positioned within the interior space of the facility and that is operable to control an amount of exhaust air that is mixed with the cool air. The cool air and/or a portion of the exhaust air are used to cool the computing devices and airflow through the system is substantially driven by fans of the computing devices.