4.7 Article

Thermophysical Properties of Nanoparticle-Enhanced Ionic Liquids (NEILs) Heat-Transfer Fluids

Journal

ENERGY & FUELS
Volume 27, Issue 6, Pages 3385-3393

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/ef4002617

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Funding

  1. DOE-EERE Solar Energy Technology Program
  2. U.S. Department of Energy [DEAC09-08SR22470]

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An experimental investigation was completed on nanoparticle-enhanced ionic liquid (NEIL) heat-transfer fluids (HTFs) as an alternative to conventional organic-based HTFs. These nanoparticle-based HTFs have the potential to deliver higher thermal conductivity than the base fluid without a significant increase in viscosity at elevated temperatures. The effect of nanoparticle morphology and chemistry on thermophysical properties was examined. Whisker-shaped nanomaterials were found to have the largest thermal conductivity temperature dependence and were also less likely to agglomerate in the base fluid than spherical-shaped nanomaterials.

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