Solar cooling with aluminium pillared clays
作者： E. Vardoulakis , D. Karamanis , M.N. Assimakopoulos , G. Mihalakakou
DOI: 10.1016/J.SOLMAT.2011.04.007
关键词: Adsorption 、 Silica gel 、 Materials science 、 Chemical engineering 、 Water vapor 、 Relative humidity 、 Moisture 、 Sorption 、 Desorption 、 Aluminium 、 Mineralogy
摘要: Abstract Aluminium modified clays were prepared, characterised and tested for their potential application as solar coolers of roof surfaces. The water adsorption isotherm the samples with restored cation exchange capacity was hydrophilic type II, indicating multilayer large heat pore condensation vapour at pressures proposed application. In addition, high moisture (more than 0.1 g per g material 60–70% relative humidity) fast kinetics night sorption (comparable to silica gel) determined freeze-dried pillared sample. cyclic experiments low irradiation during day humidity 55%, maximum temperature inside montmorillonite 6.5 °C lower corresponding a typical soil primary mechanism reduced elevation aluminium evaporative cooling desorption minor influence reflection. These results indicate suitability lowering surface temperatures.
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