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ISSN Online: 2377-424X

ISBN Print: 0-89116-909-1

International Heat Transfer Conference 9
August, 19-24, 1990 , Jerusalem, Israel

OPTIMISATION OF FORCED CONVECTION COOLED ELECTRONIC SYSTEMS: AN EXPERIMENTAL STUDY

Get access (open in a dialog) DOI: 10.1615/IHTC9.480
pages 307-312

Résumé

The optimisation of forced convection cooled electronic systems such as cabinets, computers and telecommunication equipment is of growing importance because of increasing demands in the fields of noise levels, system reliability and miniaturization.
Given the cabinet dimensions, the number of printed circuit boards (PCBs) and the power to be dissipated, the designer has to face a large number of parameters which influence the local velocity fields and as a consequence the local component temperatures.
This paper describes the experimental analysis of the local heat transfer and temperature fields in a simple cabinet by means of two different measuring cards for the heat transfer and temperature data.
Even for this highly symmetrical cabinet, the results show large variations in thermal resistance and local air temperature, depending on the position in the cabinet.
The final conclusions can be generalised to other forced convection cooled systems also.