202 薄型自然空冷電子機器の筐体傾きによる煙突効果

概要

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In this paper are presented the results of an experimental study on the chimney effect on natural convection induced airflow for cooling electronic equipment. In order to enhance the natural convective air-cooling capability, the chimney effect increases with inclining the casing. Experiments have been carried out using a ventilated thin electronic equipment-casing model with a plate heater and PCB heater inside. It has inlet and outlet vents on the front and back walls of the casing. This paper presents experimental results of temperature rise inside an electronic casing for various inclinations with different heaters and casing size. The result is the temperature rises of inside casing are gently diminished by the effect of inclination. Otherwise it proposes a good arrangement using Rayleigh and Nusselt number.
社団法人日本機械学会の論文
2003-03-01