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سال انتشار مقاله: ۲۰۱۹
عنوان به انگلیسی:
A review on airflow management in data centers
چکیده مقاله به انگلیسی:
This study provides a review upon airflow management in data centers. Based on the available airflow path,
cooling systems in data centers are categorized as long-distance cooling or short-distance cooling systems.
Investigations on airflow management include tests in real data center or in simulated data center. Besides, the
computational fluid dynamics (CFD) had been widely employed upon the thermal and airflow management of
the data centers. For the long-distance cooling system, the airflow management normally adopts raised-floor
configuration and hot/cold aisle arrangement. The major problems in airflow management include hot-air recirculation,
cold-air bypass, leakages, over-provisioned and under-provisioned air supply, and airflow/temperature
non-uniformity. The aforementioned effects often interact with the geometry layout of the data center.
Related literatures regarding the effect of plenum depth, perforated tiles, enhanced facility such as induced
bypass fans, infrastructure layout, aisle containment and leakage are discussed and compared. In addition,
studies on the overhead air supply method are also examined and compared with the raised-floor ones. For the
short-distance cooling system, the effect of server layout and heat exchanger layout concerning the airflow
uniformity are investigated. It is found that the appropriate management of the original design into centralized
server layout can ease the mal-distribution of airflow into the severs by 30%. This review aims to emphasize the
criteria of implementing airflow management to data centers that serve as a reference guide for energy saving in
data center as far as airflow arrangement is concerned. Moreover, some recommended future research efforts are
also addressed.

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