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

ZUSAMMENFASSUNG

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.

MATERIALIEN

Produktnummer

Marke

Produktbeschreibung

W294004

Sigma-Aldrich

Propylenglycol, ≥99.5% (GC), FCC, FG

P4347

Sigma-Aldrich

Propylenglykol, meets USP testing specifications

PHR1051

Supelco

Propylenglykol, Pharmaceutical Secondary Standard; Certified Reference Material

398039

Sigma-Aldrich

1,2-Propandiol, ACS reagent, ≥99.5%

241741

Sigma-Aldrich

Kupfer(II)-oxid, ACS reagent, ≥99.0%

544868

Sigma-Aldrich

Kupfer(II)-oxid, nanopowder, <50 nm particle size (TEM)

208841

Sigma-Aldrich

Kupfer(II)-oxid, powder, <10 μm, 98%

1576708

USP

Propylenglycol, United States Pharmacopeia (USP) Reference Standard

266086

Sigma-Aldrich

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

349178

Sigma-Aldrich

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

203122

Sigma-Aldrich

Kupfer, powder, 99.99% trace metals basis

134368

Sigma-Aldrich

1,2-Propandiol, ReagentPlus^®, 99%

82280

Sigma-Aldrich

1,2-Propandiol, puriss. p.a., ACS reagent, ≥99.5% (GC)

207780

Sigma-Aldrich

Kupfer, powder, <75 μm, 99%

349216

Sigma-Aldrich

Kupfer, wire, diam. 1.0 mm, ≥99.9%

774111

Sigma-Aldrich

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

326453

Sigma-Aldrich

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

450812

Sigma-Aldrich

Kupfer(II)-oxid, powder, 99.99% trace metals basis

357456

Sigma-Aldrich

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

540250

Sigma-Aldrich

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

349208

Sigma-Aldrich

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

310433

Sigma-Aldrich

Kupfer(II)-oxid, needles, mixture of CuO and Cu₂O, ACS reagent

61139

Sigma-Aldrich

Kupfer, turnings, purum p.a., ≥99.0%

774103

Sigma-Aldrich

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

311405

Sigma-Aldrich

Kupfer, ACS reagent, granular, 10-40 mesh, ≥99.90%

12816

Sigma-Aldrich

Kupfer, foil, ≥99.8% (complexometric)

254177

Sigma-Aldrich

Kupfer, beads, 2-8 mm, 99.9995% trace metals basis

266744

Sigma-Aldrich

Kupfer, foil, thickness 1.0 mm, 99.999% trace metals basis

16033

Sigma-Aldrich

1,2-Propandiol, meets analytical specification of Ph. Eur., BP, USP, ≥99.5%

GF66556491

Kupfer, mesh, 100x100mm, nominal aperture 0.14mm, thickness 0.25mm, wire diameter 0.115mm, 100x100 wires/inch, open area 30.3%, plain weave mesh