Evaluation of cooling air distribution system at Amirkabir University’s high-speed data processing center

Document Type : Research Article

Authors

1 350, hafez ave Hafez Ave

2 دانشگاه صنعتی امیرکبیر

10.22060/ajme.2020.17401.5860

Abstract

In the present paper, the distribution of air and temperature contours at the Amirkabir University of Technology’s high-speed data processing center has been studied using numerical simulation with 6Sigmadcx software. To solve the governing equations the finite volume method and to create a turbulent effect k-epsilon model has been used. The purpose of the management of air distribution systems is to solve the problems in the cooling of data centers, including minimizing the hot air recirculation, cold air bypass. To solve these problems, the data center once has been simulated with a cold aisle enclosure and again with a hot aisle enclosure with the return flow from the ceiling plenum and the results of dimensionless temperature indices were compared with the results of the main model of the data center. The most important index that is first reviewed is the rack cooling index high which measures the difference between overheating temperatures. According to the results, this index for the main model is 82, for the cold aisle enclosure model is 95 and for hot aisle enclosure with the return flow from the ceiling plenum is 99. Also, by considering the optimum value of 100, the hot aisle enclosure with the return flow from the ceiling plenum model is a more suitable model for the data center and all racks are cooled in ASHRAE (2011) standard range.

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