... scenarios, compared with a baseline design. 23 12 2009 24 02 2010 09 09 2010 air conditioning computer centres cooling power consumption thermal management (packaging) data center energy efficiency coordinated optimization IT power minimization workload distribution...

...Emad Samadiani; Jeffrey Rambo; Yogendra Joshi This paper is centered on quantifying the effect of computer room and computer room air conditioning (CRAC) unit modeling on the perforated tile flow distribution in a representative raised-floor data center. Also, this study quantifies the effect...

... considered, the chiller energy use was the biggest fraction of about 41% and was also the most inefficient. The room air conditioning was the second largest energy component and was also the second most inefficient. A sensitivity analysis of plant and chiller energy efficiencies with chiller set point...

... 2008 air conditioning computer centres Data centers are computing infrastructure facilities that house a large amount of data processing and storage equipment within several typically 2 m high electronic cabinets or racks. While the heat flux generated by the electronics is increasing...

... floor data center with 12 kW racks is considered. There are four rows of racks with alternating hot and cold aisle arrangement. Each row has six racks installed. Two air-conditioning units supply chilled air to the data center through the pressurized plenum. Effect of plenum depth, floor tile placement...

... power density data centers of the future. Current techniques control the computer room air conditioning units (CRACs) based on the return air temperature of the air—typically set near 20 ° C . Blowers within the CRACs are normally operated at maximum flow rate throughout the operation of the data center...