ZnO-NaNO₃ nanocomposites for solar thermal energy storage systems.

ABSTRACT: High-temperature phase change materials (PCMs) with good energy storage density and thermal conductivity are needed to utilize solar thermal energy effectively to meet industrial thermal energy demands. Composite PCMs containing a material of higher thermal conductivity and an inorganic high-temperature PCM can be explored to meet these requirements. Accordingly, a high-temperature, composite inorganic PCM (ZnO-NaNO₃) with enhanced thermophysical properties was prepared, and its energy storage potential was investigated experimentally. A maximum thermal conductivity enhancement of 22.7% was achieved at 200 °C for 2 wt% ZnO-NaNO₃ nanocomposite. The increase in thermal conductivity at higher temperatures may be attributed to the formation of ordered sodium nitrate layer

SUBMITTER: Hari Suthan V 

PROVIDER: S-EPMC11479616 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature