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| Abstract |
Several materials were tested for their suitability as an adsorption heat storage medium. The main objective of the research was to test their adsorption properties in combination with water. The main... observed properties were adsorption uptake, relative pressure of the adsorption and adsorption energy. The examined materials were selected from the groups of mesoporous silica nanoparticles (MSNs) and zeolites. From the observed materials the MSNs materials are showing the highest adsorption uptake up to 0.8 g/g of water which is due to their higher pore volume. However, most of the adsorption is occurring through the capillary condensation and the adsorption energy is then roughly equal to the water latent condensation energy which is about 41 kJ/mol. The zeolites are showing much higher adsorption energies but are greatly limited by the adsorbed amounts.show more
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