Title :
On the use of second law based cost functions in plate fin heat sink design
Author :
Gielen, R. ; Rogiers, F. ; Joshi, Y. ; Baelmans, M.
Author_Institution :
Dept. of Mech. Eng., Katholieke Univ. Leuven, Leuven, Belgium
Abstract :
This paper discusses the use of the second law in heat sink design. A new entropy-based cost function is proposed and compared with existing heat sink cost functions. A case study of a plate fin heat sink points out that this newly developed cost function offers a heat sink which is more than twice as efficient as a heat sink designed with the traditional thermal resistance minimization objective. The effects of this new heat sink design on data center cooling systems are considered and found to be significantly improving the system efficiency and waste heat recovery.
Keywords :
computer centres; cooling; entropy; heat sinks; thermal management (packaging); thermal resistance; data center cooling system; entropy-based cost function; plate fin heat sink design; second law based cost functions; system efficiency; thermal resistance minimization; waste heat recovery; Cost function; Entropy; Heat recovery; Heat sinks; Junctions; Minimization; Resistance heating; data center; electronics cooling; entropy generation minimization; exergy; waste heat recovery;
Conference_Titel :
Semiconductor Thermal Measurement and Management Symposium (SEMI-THERM), 2011 27th Annual IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-61284-740-5
DOI :
10.1109/STHERM.2011.5767182
