Directional Grate Floor Panel for Even Rack Cooling Airflow
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Solution Overview
Problem
Existing access floor panel systems in data centers inefficiently distribute cooling air, leading to inconsistent temperature distribution across IT racks and high energy costs due to vertical airflow plumes that do not effectively target the racks.
Innovation Solution
A directional grate panel with angled vanes and strategically positioned openings that direct airflow evenly across the height of IT racks, optimizing airflow distribution and reducing air velocity through turbulent flow patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If traditional perforated panels or grates are used in access floor systems, then cooling air can pass through the panels, but the air flows in vertical plumes that do not effectively reach the IT racks, resulting in inconsistent temperature distribution
Solution Approach 1:
The grate panel incorporates vanes with specific geometric configurations (angled surfaces, varying depths, and strategic positioning) that create localized airflow control zones. These vanes are arranged to direct air horizontally toward rack faces at different heights, ensuring each region of the panel delivers cooling air precisely where needed rather than allowing uniform vertical plume formation.
Solution Approach 2:
The invention modifies the physical parameters of the grate panel by introducing vanes with specific angles (e.g., 45-degree angles), varying depths, and strategic spacing. These parameter changes transform the airflow pattern from vertical plumes to horizontal directed streams, enabling the cooling air to effectively reach IT rack faces at different heights and achieve consistent temperature distribution.
2Loss of energy
If cooling air is supplied to the plenum and passes through traditional grates, then air reaches the data center, but a significant portion is wasted and does not effectively cool the IT racks, leading to high energy consumption
Solution Approach 1:
The vanes are designed to extract and redirect the vertical momentum of incoming cooling air, converting it into horizontal flow directed toward the IT racks. By positioning vanes at strategic locations with specific angles, the system captures the upward-moving air plumes and redirects them horizontally, ensuring that the cooling air effectively reaches the rack faces rather than being wasted in vertical circulation.
Solution Approach 2:
The vanes act as intermediary elements between the plenum and the IT racks, mediating the airflow transformation. These vanes intercept the cooling air from the plenum, modify its direction through their angled surfaces, and deliver it horizontally to the rack faces. This intermediary function ensures efficient energy utilization by preventing air waste and maximizing cooling effectiveness.
3Ease of manufacture
If simple perforated panels are used, then the structure is simple and easy to manufacture, but the airflow distribution is inadequate and cannot direct cooling air evenly across the height of IT racks
Solution Approach 1:
The grate panel is segmented into multiple functional zones using vanes of varying depths and angles. These vanes divide the airflow into multiple streams directed at different heights and angles toward the IT racks. The segmentation allows the panel to maintain relative manufacturing simplicity while achieving complex airflow distribution patterns that simple perforated panels cannot provide.
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 directional grate panel ensures consistent temperature distribution across IT racks by directing a higher percentage of cooling air directly to the racks, reducing energy consumption and minimizing wasted airflow, thereby achieving more economic and efficient cooling.
Implementation Method 1
reducing air velocity through turbulent flow patterns
Data Source
AI summary
A grate access floor panel comprising a support frame and a plurality of vanes supported by the frame, each of the plurality of vanes having an upstream end and a downstream end with respect to a direction of airflow across the plurality of vanes and faces that extend between the upstream and downstream ends, wherein at least some of the vanes have openings that extend through the faces thereof and have angled tips.