Corrosion Assessment of Myo-Inositol Sugar Alcohol as a Phase Change Material in Storage Systems Connected to Fresnel Solar Plants
作者： José Maldonado , Ángel Fernández , Luisa Cabeza
DOI: 10.3390/MOLECULES24071383
关键词:
摘要: Thermal energy storage systems work in conjunction with solar technologies the aim of increasing their dispatchability and competitiveness market. Among others, latent heat thermal have become an appealing research subject many efforts therefore been invested selecting best phase change material (PCM) to fit final application. In this study, extended corrosion characterization was performed for two PCM candidates, salt (40 wt.% KNO3/60 NaNO3) myo-inositol (C6H12O6), be applied Fresnel plants. Corrosion rates were determined aluminium, stainless steel (AISI 304), carbon 1090), copper by gravimetric tests, gauging weight loss after 2000 h immersion at 250 °C. The products characterized scanning electron microscopy (SEM) x-ray diffraction (XRD). tests carried out did not show accurate enough results draw conclusions regarding on metals. However, it observed that sugar alcohol strongly sticks metal specimens, making extremely difficult manage as material. Therefore, present paper discourages use a beyond its rate.
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