Sealed Rack Aisle Pressure Feedback for Cooling Airflow Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Data centers face inefficiencies in cooling systems due to arbitrary airflow around and into racks, leading to increased energy consumption and reduced cooling efficiency, as existing methods do not effectively manage the flow of cooling media within the aisles defined by rows of racks.
Innovation Solution
A rack system with sealed aisles and a sensor arrangement to compare medium pressure inside and outside the aisle, allowing for controlled parameters such as temperature, humidity, and flow rate of the cooling medium to be adjusted based on pressure differences, ensuring efficient heat dissipation and energy use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If climate control systems supply cooled air to data centres, then the temperature of ambient air is reduced, but the cooling efficiency decreases due to arbitrary flow around and into racks
Solution Approach 1:
The aisle is segmented into a sealed environment separated from the general data centre ambient air. This segmentation ensures that cooled air supplied to the aisle remains contained and directed through the racks, preventing arbitrary flow and mixing with warm ambient air, thereby improving cooling efficiency while maintaining temperature control
Solution Approach 2:
A sensor arrangement acts as an intermediary to monitor pressure differences between inside and outside the aisle. This intermediary provides feedback information that enables dynamic adjustment of cooling supply, optimizing the balance between temperature maintenance and energy efficiency
2Temperature
If climate control systems increase cooling supply to maintain temperature, then temperature control is improved, but energy consumption increases
Solution Approach 1:
The sensor arrangement provides continuous feedback on pressure differences, which indicates the actual flow of cooled air through the racks. This feedback enables the climate control system to adjust cooling supply dynamically, reducing energy consumption when adequate cooling flow is achieved while maintaining proper temperature control
Solution Approach 2:
The system transitions from static cooling supply to dynamic adjustment based on real-time pressure measurements. The cooling supply can be modulated according to actual airflow conditions and thermal loads, optimizing the balance between temperature control and energy consumption
3Quantity of substance
If ambient air is used for cooling, then cooling medium availability is high, but cooling efficiency decreases due to heating up of ambient air
Solution Approach 1:
The aisle is sealed off as a separate zone, segmenting the cooling medium flow path from the general ambient air. This ensures that the supplied cooled air remains dedicated to cooling the racks without mixing with heating ambient air, maintaining cooling efficiency while using ambient air as the cooling medium
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 enhances cooling efficiency by ensuring all cooling medium passes through racks, reducing energy consumption by optimizing airflow and temperature control within the data center, while maintaining a predefined positive pressure to prevent ambient medium entry.
Implementation Method 1
a sensor arrangement allowing to compare the medium pressure inside and outside the aisle
Implementation Method 2
the aisle is sealed such that essentially all of a cooling medium in the form of air supplied to the aisle passes through the racks
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A rack system (100) comprises a plurality of racks (105) arranged to form at least one aisle (120) between them. The aisle (120) is sealed such that essentially all of a cooling medium supplied to the aisle (120) passes through the racks (105). A sensor arrangement (195) is provided to compare the medium pressure inside and outside the aisle (120). In one embodiment, a signal generated by the sensor arrangement (195) is used to control at least one parameter of the cooling medium supplied to the aisle (120). As an example, the flow rate of the cooling medium may be controlled.