Experiments on the cooling by natural convection of an array of vertical heated plates with constant heat flux

Abstract This paper presents experimental results that aim to document the phenomenon of cooling by natural convection of an array of vertical plates with uniform and equal heat fluxes. The working fluid is air. The effect of several factors on the plate temperature distribution was determined. These factors are the spacing of the plates, the existence of a floorlike flow obstruction near the entrance of the vertical channel, and the existence of a ceilinglike flow obstruction near the exit of the vertical channel. In several cases, these factors had a paramount effect on the plate temperature distribution. Examined also was the impact on the effectiveness of the natural convection cooling of a second row of plates positioned under the row of plates under investigation in an aligned or a staggered fashion.

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