Analysis and optimization of a natural draft heat sink system

Author

Fisher, Timothy S. ; Torrance, Kenneth E. ; Sikka, Kamal K.

Author_Institution

Sibley Sch. of Mech. & Aerosp. Eng., Cornell Univ., Ithaca, NY, USA

fYear

1996

fDate

29 May-1 Jun 1996

Firstpage

115

Lastpage

123

Abstract

An analytical solution for a system consisting of a parallel-plate, isothermal heat sink and a chimney is presented. The result is applied to problems in which the size of the overall system is constrained. A ridge of maximum total heat transfer is observed with respect to the channel width and heat sink height. The ridge suggests that heat sink without diminishing thermal performance for natural draft cooling. The flow characteristics of optimal systems reveal that systems with and without chimneys dissipate maximum heat when the velocity profiles within the heat sink are fully developed and developing respectively

Keywords

confined flow; cooling; heat sinks; natural convection; optimisation; packaging; thermal analysis; channel width; chimney; flow characteristics; heat sink height; isothermal heat sink; maximum total heat transfer; natural draft cooling; natural draft heat sink system; optimal systems; parallel-plate type; thermal performance; Acceleration; Atmosphere; Gamma ray bursts; Geometry; Heat sinks; Heat transfer; Isothermal processes; Temperature; Thermal conductivity; Thermal expansion;

fLanguage

English

Publisher

ieee

Conference_Titel

Thermal Phenomena in Electronic Systems, 1996. I-THERM V., Inter-Society Conference on

Conference_Location

Orlando, FL

Print_ISBN

0-7803-3325-X

Type

conf

DOI

10.1109/ITHERM.1996.534552

Filename

534552