Enhancement of specific heat capacity of high-temperature silica-nanofluids synthesized in alkali chloride salt eutectics for solar thermal-energy storage applications

Donghyun Shin, Debjyoti Banerjee

Research output: Contribution to journalArticlepeer-review

391 Scopus citations

Abstract

In this study, we report the anomalous enhancement of specific heat capacity of high-temperature nanofluids. Alkali metal chloride salt eutectics were doped with silica nanoparticles at 1% mass concentration. The specific heat capacity of the nanofluid was enhanced by 14.5%. Dispersion behavior of the nanoparticles in the eutectic was confirmed by scanning electron microscopy (SEM). Three independent competing transport mechanisms are enumerated to explain this anomalous behavior.

Original languageEnglish
Pages (from-to)1064-1070
Number of pages7
JournalInternational Journal of Heat and Mass Transfer
Volume54
Issue number5-6
DOIs
StatePublished - Feb 2011

Keywords

  • Alkali chloride eutectic
  • Electron microscopy
  • Nanoparticle
  • Silicon dioxide
  • Specific heat capacity

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