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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

ABSTRAKT

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.

MATERIAŁY

Numer produktu

Marka

Opis produktu

Copper, wire reel, 50m, diameter 0.15mm, annealed, silver plated, 99.9%

Supelco

Propylene glycol, Pharmaceutical Secondary Standard; Certified Reference Material

USP

Glikol propylenowy, United States Pharmacopeia (USP) Reference Standard

Propylene glycol, European Pharmacopoeia (EP) Reference Standard

Continuous cast copper (O), BCR^®, certified reference material, rod

Sigma-Aldrich

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

Copper - O.F.H.C., foil, 150x150mm, thickness 0.25mm, annealed, 99.95+%

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Copper, wire, diam. 1.0 mm, ≥99.9%

Sigma-Aldrich

Copper(II) oxide, powder, 99.995% trace metals basis

Copper, rod, 100mm, diameter 16mm, as drawn, 99.99+%

Sigma-Aldrich

Copper, powder, <75 μm, 99%

Sigma-Aldrich

Propylene glycol, ≥99.5% (GC), FCC, FG

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Propylene Glycol, meets USP testing specifications

Copper - O.F.H.C., foil, 25x25mm, thickness 0.25mm, annealed, 99.95+%

Copper, wire reel, 500m, diameter 0.5mm, annealed, 99.9%

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

Copper - O.F.H.C., foil, 100x100mm, thickness, 0.5mm, half hard, flattened, polished on both sides, 99.95+%

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Copper, turnings, purum p.a., ≥99.0%

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

Copper, wire reel, 1m, diameter 0.01mm, hard, 99.99%

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Copper(II) oxide, powder, <10 μm, 98%

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

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Copper(II) oxide, 99.999% trace metals basis

Copper - O.F.H.C., foil, light tested, 150x150mm, thickness 0.05mm, annealed, 99.95+%

Copper, rod, 100mm, diameter 4.8mm, hard, 99.9%

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Copper, foil, ≥99.8% (complexometric)

Copper, wire reel, 200m, diameter 0.5mm, annealed, silver plated, 99.9%

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Copper - O.F.H.C., wire reel, 10m, diameter 0.25mm, as drawn, 99.95+%