3.8 Article

Phase change material mixed with chloride salt graphite foam infiltration for latent heat storage applications at higher temperatures and pressures

Journal

Publisher

SPRINGER HEIDELBERG
DOI: 10.1007/s40095-021-00462-5

Keywords

Infiltration; Phase-change material (PCM); Graphite foam; Thermal conductivity; Energy

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This study developed a technique for infiltrating phase-change material (PCM) into composite metals using pressure and vacuum in graphite foam. The researchers successfully created porosity and infiltrated PCM pellets into the metal using this method. The infiltration process is cost-efficient and simple, making it suitable for energy storage in concentrating solar power plants.
In the address layer of energy systems, the infiltration of phase-change material (PCM) into composite metals can be used. In this study, infiltration technology was developed with simultaneous pressure and vacuum in graphite foam. The vacuum pump was used to create porosity during the melting and infiltration process in the composition of PCM pellets. Easy construction, stainless steel, and PCM's corrosion-resistant function deliver a Cost-efficient and simple process development. The goal of this analysis is to examine the properties of PCM using a mixture of materials such as salts and chloride salts with graphite foam. High energy storage density Chloride-based PCM was used at 355 degrees C. The energy-dispersive spectroscopy and Scanning electron microscopy analysis were used to assess the successful existence of the phase of infiltration to test the PCM composite and material compounds. A laser thermal flash conductivity meter was used to evaluate the infiltrated sample thermal conductivity. An infiltration performance of more than 92% of the porosity usable has been reached. The sample thermal conductivity is proven to be more robust Factor more than 45 times pure chloride PCM. Low-cost infiltration demonstrated effectiveness and Infiltrated PCM repeatability may be a milestone for the third generation of supercritical carbon dioxide energy cycle applications in concentrating solar power plants.

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