Title :
Local and global dimensional CFD simulations and analyses to optimize server-fin design for improved energy efficiency in data centers
Author :
Sakaino, Hidetomo
Author_Institution :
NTT Energy & Environ. Syst. Labs., Nippon Telegraph & Telephone Corp., Musashino, Japan
Abstract :
This paper presents numerical simulations based on the concept of local and global dimensional analysis to reproduce the thermodynamics and aerodynamics of server-fins, i.e., detachable flat/curved fins on the inlet/outlet of a server, for enhancing energy efficiency in data centers. Server-fin designs, combinations of shapes and opening angles, are evaluated by transient analysis, vorticity analysis, temperature change rate analysis, and a modified Return Heat Index. Various numerical simulations from local to global dimensions confirm the effectiveness of the server-fins proposed herein in enhancing energy efficiency in data centers compared to their omission.
Keywords :
computational fluid dynamics; computer centres; energy conservation; heat sinks; thermal management (packaging); curved fin; data center; detachable flat fin; energy efficiency; global dimensional CFD simulation; local dimensional CFD simulation; modified return heat index; server fin aerodynamics; server fin design; server fin thermodynamics; temperature change rate analysis; transient analysis; vorticity analysis; Abstracts; Equations; Floors; Heating; Mathematical model; Servers; Tin; aerodynamics; computational fluid dynamics; energy efficiency; extended RHI; local and global analysis; purpose-oriented graphical user interface; server-fin; temperature change rate; time series analysis;
Conference_Titel :
Thermal and Thermomechanical Phenomena in Electronic Systems (ITherm), 2014 IEEE Intersociety Conference on
Conference_Location :
Orlando, FL
DOI :
10.1109/ITHERM.2014.6892330
