Ultrasonic Characterization of Silver Nano Fluid

Nanda, Anima; Tiadi, A.; Mallik, Sameer Kumar; Giri, Ritesh; Nath, G.

doi:10.1088/1757-899x/360/1/012064

Cited by 6 publications

(1 citation statement)

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“…Biosynthesis of nanomaterial using plant extracts (phytosynthesis) is an excellent, convenient and sustainable technique for the synthesis of nanomaterial. The presence of large number of phytochemicals in the plant extracts plays a key role for the enhancement of thermal conductivity is an extremely captivate and challenging approach [11,12] due to the reduction rate, size and stabilisation by acting as a good reducing, surfactants, structure directing and capping agents [13]. Moreover, green technology of nanoparticle synthesis involves two major concepts: (i) solvent water must be used and (ii) a natural source/extract is utilised as the main component.…”

Section: Introductionmentioning

confidence: 99%

Analysis on thermal conductivity of green processed alumina nanofluid for thermal industries

Sa¹,

Nath²

2022

Adv. Nat. Sci: Nanosci. Nanotechnol.

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The dual mechanism played by curry leaf extract on synthesis of alumina nanoparticles contributes a significant enhancement in thermal conductivity of alumina nanofluid with appreciably small volume fraction from 0.01%–0.05%. The most probable particle size of alumina nanoparticle dispersed in water of 3.12 nm observed from particle size analyser along with a strong absorption peak at λ max around 238 nm confirms the alumina nanoparticles in the fluid. The increase of energy band gap from 4.8 to 5.12 eV indicates the decrease in size of the nanoparticle solely attributed to contribution of curry leaf extraction method of preparation of nanoparticles. The spherical shaped alumina nanoparticle has got high thermal conductivity with enhancement from 1.8% to 21.44% which is attributed to the significant contribution of H-atom as energy storage unit in water. With increase of sonication time, thermal conductivity varies appreciably from 0.531 W mK−1 to 0.736 W mK−1 with volume fraction of nanofluid. Therefore, the novel combinations of characterised properties of Al2O3 nanofluid have proved to be the best thermally stable heat transfer fluid compared to conventional cooling fluids.

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Section: Introductionmentioning

confidence: 99%