Data Center Mixing Module for Energy-Efficient Air Cooling
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Solution Overview
Problem
Conventional data center cooling systems consume large amounts of energy, leading to high operational costs, as they rely heavily on active air conditioning units to maintain optimal temperatures for IT equipment.
Innovation Solution
A prefabricated mixing module that allows controlled mixing of internal and external air within a data center, enabling reduced energy consumption by deactivating or minimizing the use of active cooling systems when external air conditions are suitable, and supporting configurations that utilize external air for cooling or recirculation based on environmental conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional active cooling systems are used to maintain optimal temperatures for IT equipment, then the equipment operates reliably, but energy consumption increases significantly
Solution Approach 1:
The mixing module dynamically adjusts damper positions based on external air conditions to optimize the mix of recirculated and fresh air. This dynamic control allows the system to adapt to changing environmental conditions, reducing cooling energy consumption when external air is favorable while maintaining equipment reliability through continuous temperature monitoring and adjustment.
Solution Approach 2:
The system changes operational parameters by varying the proportion of recirculated air mixed with fresh external air. By adjusting this mixing ratio based on external temperature and humidity conditions, the system can reduce the load on active cooling systems during favorable conditions while ensuring reliable equipment operation when conditions deteriorate.
2Use of energy by moving object
If external air is used for cooling when conditions are suitable, then energy consumption decreases, but the system complexity increases due to mixing chamber and damper mechanisms
Solution Approach 1:
The mixing module serves multiple functions: it conditions fresh air, mixes it with recirculated air, controls humidity, and regulates temperature. This multi-functionality consolidates what would otherwise require separate systems into a single integrated unit, reducing overall system complexity while enabling energy-efficient operation when external conditions are favorable.
Solution Approach 2:
The mixing chamber acts as an intermediary between fresh external air and recirculated air, providing a controlled environment for mixing these air streams. This intermediary structure simplifies the air handling process by centralizing the mixing function in a dedicated component rather than requiring distributed control mechanisms throughout the data center.
3Temperature
If recirculation through the mixing chamber is disabled and external air is cooled actively, then cooling effectiveness improves during hot humid conditions, but energy consumption increases
Solution Approach 1:
The system continuously monitors external air conditions and internal temperature requirements, using this feedback to dynamically adjust the mixing ratio and damper positions. When external conditions are unfavorable (hot and humid), the system increases recirculated air proportion and activates cooling systems. When conditions improve, it transitions to energy-efficient modes by increasing fresh air intake and reducing active cooling, thus optimizing both effectiveness and energy consumption.
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 mixing module reduces energy consumption by leveraging external air for cooling, minimizing the need for active cooling systems, thereby lowering operational costs and maintaining efficient IT equipment operation.
Implementation Method 1
A mixing module for a data center may allow controlled mixing of air from enclosed space of the data center with air from the exterior environment
Implementation Method 2
mixing of air from enclosed space of the data center with air from the exterior environment
Implementation Method 3
When external air is sufficiently cool enough, the external air may be mixed with air from the enclosed space and then recirculated through the data center without additional cooling
Data Source
AI summary
A mixing module may be used in a modular data center to provide cooling of air by mixing exterior environment air with warm air exhausted from information handling systems in other modules of the modular data center. The mixing module may include a mixing aisle that provides a low-impedance path for warm and cool air to mix and for a homogenous air mass for cooling IT equipment. The mixing aisle may be divided into two portions separated by dampers to allow for control over the mixing of air in the mixing aisle. The dampers in the mixing aisle, as well as dampers on an intake and exhaust from the mix module, may be controlled to obtain a desired temperature and/or humidity level.