Directional Airflow Grilles
These have been designed to direct the airflow toward the server rack to significantly reduce bypass air and to evenly distribute airflow across the full height of a standard 42U rack. A bi-directional grille is designed to divide the airflow evenly in two directions to provide even distribution to racks on both sides of a cold aisle.
Air Volume Control
Automatic damper control
Datacentres rack loads frequently change on a minute-by-minute basis due to inconsistent processing demands and equipment upgrades. This load variability has been driven by the improved efficiency of IT hardware over time, increasing the difference between idle power consumption, and 100% utilization. This fact, coupled with the growing use of cloud computing, makes manual tuning of the airflow at the panel level impossible.
By matching cooling to the IT load at the rack level the wasted energy that results from designing to peak load can be eliminated. By delivering only the right amount of air required to cool the rack a savings of over 40% in fan energy can be realized.
Manual damper control
Some datacentre’s experience very little load variability however, the typical datacentre environment is not comprised of a single rack density level. In fact, it would be near impossible to find two racks which consume exactly the same amount of energy in a large datacentre. This load diversity results in differing airflow requirements per rack. Efficient cooling requires that the airflow delivered to each rack be matched to that rack’s demand.
Each rack in the datacentre is a constantly changing entity, each add, move or change modifies the load. This changes the rack’s airflow requirements, resulting in the need to adjust the airflow delivered from each panel to properly and efficiently cool the rack.
Options include: Single, Dual & multi-zone zone dampers; opposed blade dampers &Slide dampers.
A fan assist module is designed to provide a blast of cooling through an individual airflow panel. The fan automatically turns on when conditions require additional cooling. Options are available to utilize rack mounted temperature sensors or an existing client sensor network to control the fan. Equipped with a variable speed drive the fan can be throttled up or down based on the heat load requirements. This powerful solution is capable of cooling up to 20kW of IT load per unit for solving the toughest hot spots.
Close all open apertures in the floor where typically cable access or mechanical services have been fitted to maintain optimum floor pressure and supply air distribution through floor grilles; as recommended in the EU Best Practices for Datacentres.
Solutions include: Floor grommets, airguards and brush-strips.