Natural Convection form an Array of Rectangular Protrusions in an Enclosure Filled with Dielectric Fluid: Effects of Boundary Conditions, Fluid Prandtl Number, and Selective Powering.

摘要

An experimental investigation has been conducted to further examine Natural Convection Immersion Cooling of a three by three array of heated protrusions in a rectangular chamber filled with dielectric fluid. Each rectangular protrusion geometrically modelled a 20 pin dual inline package. Input power to each component varied from 0.1 to 3.0 W.. The purpose of this study was to examine the effects of the following parameters for the range of power levels selected: 1) Top and bottom boundary temperatures; 2) Selective powering of components; 3) Changes in the fluid Prandtl number. The data were obtained as component surface temperatures. These were subsequently presented in terms of appropriate non-dimensional parameters. As part of the overall investigation, flow visualization results are also presented for selected conditions. Keywords: Theses; Direct immersion; Natural convection cooling; Dielectric liquid protrusions; Enclosure; Simulated circuit board; Convective heat transfer. (JHD)