CRAC

(redirected from CRACS)
Also found in: Acronyms.
Related to CRACS: cracks, Crocs

CRAC

abbreviation for
(Government, Politics & Diplomacy) Careers Research and Advisory Centre
References in periodicals archive ?
They typically tend to control the supply temperatures of CRACs in real time.
You probably already have enough electrical and mechanical capacity to avoid exceeding the total cooling load, but thermal issues are still a danger if your computer room air conditioning (CRAC) units aren't distributing air to the right places.
The most common practice is to have these humidifiers distributed throughout the data center in the computer room air conditioning (CRAC) or computer room air-handling (CRAH) units.
Turn off humidification and reheat in all CRACs except one or two in each computer room.
CRACs typically have Two or Three individual blowers with a corresponding number of air outlets that produce complex airflow patterns; nevertheless, the airflow generally impinges upon the subfloor then spreads out fairly uniformly in all unobstructed directions.
Depending on the specific CRACs being used, there will be enough running redundancy that the fourth unit is not needed anymore.
Optimizing air flow requires an evaluation of how rack arrangement, CRAC placement/air distribution and cable management, might be impacting the air flow in the room.
Three (3) 20-ton nominal, direct expansion CRAC units provided space cooling.
Overall, the project team found these metrics (and representation) easy to understand and the recommendations were implemented together with the replacement of 2 (No) of the 5 (No) CRACs for slightly larger units.
The objective of this paper is to highlight the differences that occur in perforated tile flow rate and flow distribution for tiles located in close proximity to CRAC units for RFP data centers with deeper plena compared to the existing measurement database for relatively shallow plena.
The room analyzed was approximately 10,000 [ft.sup.2] (929 [m.sup.2]) with the datacom equipment in a cold aisle/hot aisle arrangement and the CRACs situated around the perimeter of the room.
Detailed measurements were taken in both data centers of electronic equipment power usage, perforated floor tile airflow, cable cutout airflow, computer room air-conditioning (CRAC) airflow, and electronic equipment inlet air temperatures.