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Fig. 11. (a) – Effect of the thermal contact resistance on the performance of the solar refrigerator. (b) – Effect of the condenser area on the maximum temperature difference between condenser and environment air and on the COP of the solar refrigerator.Figure optionsDownload full-size imageDownload as PowerPoint slide
It is concluded that there is no advantage in decreasing the area of the condenser (except a slight PTK787 in the overall weight of the solar refrigerator); however, it is interesting to note that the reduction of area to 5 m2 still allows reasonable operation of the installation, since the COP is maintained above 0.06. This means that it is possible to build a more compact, lighter and cheaper solar refrigerator without a large decrease on performance.
4.4. Pressure loss reduction, radiative characteristics of the plate and thermal insulation of the refrigerated cabinet
Fig. 12. (a) – Effect of evaporation pressure on the performance of the solar refrigerator. (b) – Results for the performance of the solar refrigerator with different adsorber plate paints.Figure optionsDownload full-size imageDownload as PowerPoint slide