Energy reduction in server cooling via real time thermal control

Author

Han, Xuefei ; Joshi, Yogendra

Author_Institution

George W. Woodruff Sch. of Mech. Eng., Georgia Inst. of Technol., Atlanta, GA, USA

fYear

2012

fDate

18-22 March 2012

Firstpage

20

Lastpage

27

Abstract

Currently, server fans often over-cool the CPUs, contributing to increased use of energy. A thermal model-based real-time fan controller was studied in this paper to reduce the energy consumption in server CPU fans. A reduced order model of the server CPU and its heatsink was developed using proper orthogonal decomposition (POD), which provided 180 times faster simulation times, with reasonable accuracy. This was used in conjunction with a fan control strategy to achieve 27% savings in energy consumed for cooling.

Keywords

cooling; energy consumption; fans; file servers; heat sinks; reduced order systems; temperature control; thermal management (packaging); POD; energy consumption; energy reduction; energy use; heat sink; proper orthogonal decomposition; reduced order model; server CPU fan; server cooling; thermal model-based real-time fan controller; Atmospheric modeling; Computational fluid dynamics; Fans; Heating; Predictive models; Servers; Temperature measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Semiconductor Thermal Measurement and Management Symposium (SEMI-THERM), 2012 28th Annual IEEE

Conference_Location

San Jose, CA

ISSN

1065-2221

Print_ISBN

978-1-4673-1110-6

Electronic_ISBN

1065-2221

Type

conf

DOI

10.1109/STHERM.2012.6188829

Filename

6188829