An experimental and numerical investigation of novel solution for energy management enhancement in data centers using underfloor plenum porous obstructions

Tradat, Mohammad; Manaserh, Yaman; Sammakia, Bahgat; Hoang, Cong Hiep; Alissa, Husam A.

doi:10.1016/j.apenergy.2021.116663

Cited by 47 publications

(10 citation statements)

References 34 publications

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“…This vortex causes inlet airflow non-uniformity and may give rise to the rack hot spots. 22 Inversely, more uniform rack airflow delivery can be obtained in CASS in Figure 18B. The vortex disappeared and the reorientation inclined air flow makes the air distribution more uniform.…”

Section: Rack Flow Ratesmentioning

confidence: 91%

“…In previous similar studies, standard k-ε turbulence was generally used in the DC computational model and obtained good results. 22,[34][35][36][37][38]40,43 Therefore, in this paper, the standard k-ε turbulence model is still used with an enhanced wall function. 35,37 Besides, gridgeneration was based on GAMBIT software (version 2.4.6) and the results were analyzed on ANSYS FLUENT software (version 18).…”

Section: Measurement Setupmentioning

confidence: 99%

“…In the lower space, the structure parameters of plenum, such as the plenum height, [18][19][20][21][22] floor perforation rate, 18,23,24 the layout of cables and pipes 23,25,26 and the adoption of new structures 22,27,28 in the plenum are widely investigated. Schmid 23 and Fakhim 26 studied the effect of the layout of cables and pipes in the plenum on airflow from the perforated tiles, the results indicated that reasonable layout effectively enhanced the uniformity of airflow exiting from perforated tiles and reduced the rack inlet temperatures significantly.…”

mentioning

confidence: 99%

“…In 2020, Lu et al 28 indicated that plenum with gradient cross-sections created using inclined partitions significantly improved the temperature uniformity and reduced the hot spots. Besides, Tradat et al 22 in 2021 proposed a novel approach using porous partitions in the plenum to eliminate the presence of vortices in the plenum and thus enabled a more uniform pressure distribution and tile airflow delivery.…”

mentioning

confidence: 99%

“…In the upper space, some containment technologies are applied such as cold aisle containment system (CACS), hot aisle containment system (HACS), and the blanking panel segregation. 21,22,24,[28][29][30][31][32][33] The research results of Nada et al 19,30,33 showed that CACS improve the cooling performance of severs, especially at high power density by reducing the rack inlet temperature by about 13%-40%. Tatchell-Evans et al 31 investigated the effect of cold air bypassing in DC with CACS by numerical simulation and experimental investigation.…”

mentioning

confidence: 99%

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Data centers (DCs) are expensive and energy-intensive computing structures that house an enormous number of information technology (IT) equipment and relevant supporting systems. With the rapid development of computer technology in network information age, the number and scale of DC are growing continuously, the problem of high energy consumption is becoming increasingly prominent. 1 The energy consumption of DC has accounted for 2% of the total generation capacity of the United States and is growing by about 12% every year. 2 Therefore, it is urgent to take various measures to reduce the energy expenses required for DC. To keep the severs operating safely and prevent them from overheating, 3,4 cooling system is indispensable and the cooling power takes up about

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Section: Rack Flow Ratesmentioning

confidence: 91%