Research Article
Improvement of Heat Pipe Solar Collector Thermal Efficiency Using Al2O3/Water and TiO2/Water Nanofluids
Table 4
Technical characteristics of the collector.
| Tank | Stem | Black sheet, 2 mm | Insulation | Rock wool, 50 mm | Safe | Stem | Galvanized sheet, 0.45 mm | Insulation | Rock wool, 60 mm | Absorber | Copper plate, 0.5 mm | Absorber surface | Matte black | Top cover | Glass, 4 mm |
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