0
research-article

Thermal Performance and Efficiency of a Mineral Oil Immersed Server over Varied Environmental Operating Conditions

[+] Author and Article Information
Richard Eiland

University of Texas at Arlington, P.O. Box 19023, Arlington, TX, United States, 76013
richard.eiland@mavs.uta.edu

John Fernandes

University of Texas at Arlington, P.O. Box 19023, Arlington, TX, United States, 76013
john.fernandes@mavs.uta.edu

Marianna Vallejo

CH2M, 2020 SW 4th Ave, St. 300, Portland, OR, United States, 97201
marianna.vallejo@ch2m.com

Ashwin Siddarth

University of Texas at Arlington, P.O. Box 19023, Arlington, TX, United States, 76013
ashwin.siddarth@mavs.uta.edu

Dereje Agonafer

ASME Fellow University of Texas at Arlington, P.O. Box 19023, Arlington, TX, United States, 76013
agonafer@uta.edu

Veerendra Mulay

Facebook Inc., Menlo Park, CA, United States, 425081
vmulay@fb.com

1Corresponding author.

ASME doi:10.1115/1.4037526 History: Received February 16, 2017; Revised August 01, 2017

Abstract

Complete immersion of servers in dielectric mineral oil has recently become a promising technique for minimizing cooling energy consumption in data centers. However, a lack of sufficient published data and long term documentation of oil immersion cooling performance makes most data center operators hesitant to apply these approaches to their mission critical facilities. In this study, a single server was fully submerged horizontally in mineral oil. Experiments were conducted to observe the effects of varying the volumetric flow rate and oil inlet temperature on thermal performance and power consumption of the server. Specifically, temperature measurements of the CPUs, motherboard components, and bulk fluid were recorded at steady state conditions. These results provide an initial bounding envelope of environmental conditions suitable for an oil immersion data center. Comparing with results from baseline tests performed with traditional air cooling, the technology shows a 34.4% reduction in the thermal resistance of the system. Overall, the cooling loop was able to achieve partial power usage effectiveness (pPUECooling) values as low as 1.03. This server level study provides a preview of possible facility energy savings by utilizing high temperature, low flow rate oil for cooling. A discussion on additional opportunities for optimization of IT hardware and implementation of oil cooling is also included.

Copyright (c) 2017 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In