Abstract
An image-based Excel worksheet is developed for thermal design of a vapor chamber. Excel VBA is introduced in this worksheet, where three-dimensional heat transfer simulation is performed by using a steady-state heat-conduction model of the vapor chamber. In this simulation, each cell is regarded as a control volume, and several worksheets are used to construct a three-dimensional grid system. Parameters are visually inputted into the worksheets, and the calculation is performed using a computer mouse. The calculated temperature is shown in the cells and then visualized by the Chart Wizard. The numerical results obtained by Excel simulation are compared with those by Fortran simulation to confirm the validity of the present numerical method. The Excel simulation is visual, easy and useful for the thermal design of the vapor chamber.
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