Effectiveness of Rack-Level Fans—Part II: Control Strategies and System Redundancy-Reference-Cited by-同舟云学术

Effectiveness of Rack-Level Fans—Part II: Control Strategies and System Redundancy

Published:2017-10-27 Issue:4 Volume:139 Page:
ISSN:1043-7398
Container-title:Journal of Electronic Packaging
language:en
Short-container-title:

Author:

Fernandes John Edward¹,Eiland Richard¹,Nagendran Bharath²,Mulay Veerendra³,Agonafer Dereje⁴

Affiliation:

1. Mechanical and Aerospace Engineering Department, University of Texas at Arlington, P.O. Box 19023, Arlington, TX 76013 e-mail:

2. Amazon Lab, 126 Thermal Engineer Enterprise, Sunnyvale, CA 94089 e-mail:

3. Facebook Inc., Menlo Park, CA 425081 e-mail:

4. Fellow ASME Mechanical and Aerospace Engineering Department, University of Texas at Arlington, P.O. Box 19023, Arlington, TX, 76013 e-mail:

Abstract

Fan efficiency is known to increase with size. In part I of this study, savings in server fan power on the order of 50% were reported by replacing server-enclosed 60 mm fans with a rear-mounted wall of larger fans (80 mm or 120 mm in size). A methodology for row-wise control of such rack-level fans, with the purpose of simulating an actual product, is previewed and savings comparable to part I are reported. Performance under real-life scenarios such as nonuniform computational loads and fan failure is investigated. Each rack-level setup has distinct advantages. Selecting between configurations would necessitate a compromise between efficiency, redundancy, and cost.

Funder

Directorate for Engineering

Publisher

ASME International

Subject

Electrical and Electronic Engineering,Computer Science Applications,Mechanics of Materials,Electronic, Optical and Magnetic Materials

Link

http://asmedigitalcollection.asme.org/electronicpackaging/article-pdf/doi/10.1115/1.4038014/6047342/ep_139_04_041012.pdf

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