The power trend for Server systems continues to grow thereby making thermal management of Data centers a very challenging task. Although various configurations exist, the raised floor plenum with Computer Room Air Conditioners (CRACs) providing cold air is a popular operating strategy. The air cooling of data center however, may not address the situation where more energy is expended in cooling infrastructure than the thermal load of data center. Revised power trend projections by ASHRAE TC 9.9 predict heat load as high as 5000W per square feet of compute servers’ equipment footprint by year 2010. These trend charts also indicate that heat load per product footprint has doubled for storage servers during 2000–2004. For the same period, heat load per product footprint for compute servers has tripled. Amongst the systems that are currently available and being shipped, many racks exceed 20kW. Such high heat loads have raised concerns over limits of air cooling of data centers similar to air cooling of microprocessors. A hybrid cooling strategy that incorporates liquid cooling along with air cooling can be very efficient in these situations. A parametric study of such solution is presented in this paper. A representative data center with 40 racks is modeled using commercially available CFD code. The variation in rack inlet temperature due to tile openings, underfloor plenum depths is reported.
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ASME 2007 International Mechanical Engineering Congress and Exposition
November 11–15, 2007
Seattle, Washington, USA
Conference Sponsors:
- ASME
ISBN:
0-7918-4302-5
PROCEEDINGS PAPER
Parametric Study of Hybrid Cooling Solution for Thermal Management of Data Centers Available to Purchase
Veerendra Mulay,
Veerendra Mulay
University of Texas at Arlington, Arlington, TX
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Saket Karajgikar,
Saket Karajgikar
University of Texas at Arlington, Arlington, TX
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Dereje Agonafer,
Dereje Agonafer
University of Texas at Arlington, Arlington, TX
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Roger Schmidt,
Roger Schmidt
IBM Corporation, Poughkeepsie, NY
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Madhusudan Iyengar
Madhusudan Iyengar
IBM Corporation, Poughkeepsie, NY
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Veerendra Mulay
University of Texas at Arlington, Arlington, TX
Saket Karajgikar
University of Texas at Arlington, Arlington, TX
Dereje Agonafer
University of Texas at Arlington, Arlington, TX
Roger Schmidt
IBM Corporation, Poughkeepsie, NY
Madhusudan Iyengar
IBM Corporation, Poughkeepsie, NY
Paper No:
IMECE2007-43761, pp. 519-526; 8 pages
Published Online:
May 22, 2009
Citation
Mulay, V, Karajgikar, S, Agonafer, D, Schmidt, R, & Iyengar, M. "Parametric Study of Hybrid Cooling Solution for Thermal Management of Data Centers." Proceedings of the ASME 2007 International Mechanical Engineering Congress and Exposition. Volume 8: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A and B. Seattle, Washington, USA. November 11–15, 2007. pp. 519-526. ASME. https://doi.org/10.1115/IMECE2007-43761
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