Heat management is becoming increasingly important in maintaining the proper operation and reliability of electronic devices, power electronics and various tools in production. To cope with the increasing heat generation and to achieve higher power densities, the need for new and more efficient cooling techniques is increasing. In the context of this MSc thesis, we have focused on reviewing the development of cooling of dimensionally small heat sources, and in doing so have developed a small-scale vapor-compression system for cooling them. The system incorporated one of the smallest commercially available miniature rotary compressors. A multi-parametric analysis was carried out on the experimental system to determine the cooling power and cooling number of the system, the evaporation temperature and the minimum temperature reached by the chilled water. The results were compared for three different chilled water flows and the different capillary internal diameters, and it was found that the designed system cooled the water by 7 °C, achieving 255 W of cooling power. Part of the analysis of the cooling system also included the efficiency of the compressor, for which volumetric and isentropic efficiencies were calculated and compared with efficiencies determined from the compressor manufacturer’s technical data sheet. The calculated efficiencies based on the experimental results are slightly lower because we used R600a refrigerant in the system, whereas the manufacturer used R134a refrigerant when testing the compressor.
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