Accéder au contenu

Influence of nanoparticle concentration on thermo-physical properties of CuO-propylene glycol nanofluids.

Influence of nanoparticle concentration on thermo-physical properties of CuO-propylene glycol nanofluids.

Journal of nanoscience and nanotechnology (2014-04-18)

Kuppusamy Swaminathan Suganthi, Anju K Radhakrishnan, Natarajan Anusha, Kalpoondi Sekar Rajan

RÉSUMÉ

Experiments were performed on the preparation and characterization of CuO-propylene glycol nanofluids. The influence of nanoparticle concentration and temperature on nanofluid viscosity reveals existence of a range of nanoparticle concentration and temperature in which the viscosity of nanofluid is lower than that of propylene glycol, possibly due to interactions between nanoparticles and propylene glycol. A temperature-independent, thermal conductivity enhancement of 38% was obtained for nanoparticle concentration of 1.5 vol% over a temperature range of 10-60 degrees C. We believe that particle clustering contributes to the thermal conductivity enhancement in CuO-propylene glycol nanofluids.

MATÉRIAUX

Référence du produit

Marque

Description du produit

Sigma-Aldrich

1,2-propanediol, ≥99.5% (GC), FCC, FG

Sigma-Aldrich

Copper(II) oxide, nanopowder, <50 nm particle size (TEM)

Sigma-Aldrich

Copper(II) oxide, ACS reagent, ≥99.0%

Sigma-Aldrich

Copper(II) oxide, powder, <10 μm, 98%

Sigma-Aldrich

Copper, powder, 99.999% trace metals basis

Sigma-Aldrich

Copper, foil, thickness 0.25 mm, 99.98% trace metals basis

Sigma-Aldrich

Copper, powder, <425 μm, 99.5% trace metals basis

USP

1,2-propanediol, United States Pharmacopeia (USP) Reference Standard

Sigma-Aldrich

Copper, wire, diam. 1.0 mm, ≥99.9%

Sigma-Aldrich

1,2-propanediol, ACS reagent, ≥99.5%

Sigma-Aldrich

Copper(II) oxide, powder, 99.99% trace metals basis

Sigma-Aldrich

Copper(II) oxide, needles, mixture of CuO and Cu₂O, ACS reagent

Sigma-Aldrich

Copper, powder, <75 μm, 99%

Sigma-Aldrich

Propylène glycol, meets USP testing specifications

Sigma-Aldrich

Copper, nanopowder, 40-60 nm particle size (SAXS), ≥99.5% trace metals basis

Supelco

1,2-propanediol, Pharmaceutical Secondary Standard; Certified Reference Material

Sigma-Aldrich

Copper, powder (spheroidal), 10-25 μm, 98%

Sigma-Aldrich

Copper, wire, diam. 0.25 mm, 99.999% trace metals basis

Sigma-Aldrich

Copper, nanopowder, 60-80 nm particle size (SAXS), ≥99.5% trace metals basis

Sigma-Aldrich

Copper, foil, thickness 0.025 mm, 99.98% trace metals basis

Sigma-Aldrich

(S)-(+)-1,2-Propanediol, 96%

Sigma-Aldrich

Copper, turnings, purum p.a., ≥99.0%

Sigma-Aldrich

1,2-propanediol, ReagentPlus^®, 99%

Sigma-Aldrich

Copper, foil, ≥99.8% (complexometric)

Sigma-Aldrich

Copper, powder (dendritic), <45 μm, 99.7% trace metals basis

Sigma-Aldrich

Copper, wire, diam. 0.64 mm, 99.995% trace metals basis

Sigma-Aldrich

Copper, foil, thickness 0.5 mm, 99.98% trace metals basis

Sigma-Aldrich

(R)-(−)-1,2-Propanediol, 96%

Sigma-Aldrich

Copper(II) oxide, 99.999% trace metals basis

Sigma-Aldrich

Copper, shot, −3-+14 mesh, 99%