Title :
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
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;
Conference_Titel :
Semiconductor Thermal Measurement and Management Symposium (SEMI-THERM), 2012 28th Annual IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4673-1110-6
Electronic_ISBN :
1065-2221
DOI :
10.1109/STHERM.2012.6188829
