Paul, G. ; Pal, T. ; Manna, I. (2010) Thermo-physical property measurement of nano-gold dispersed water based nanofluids prepared by chemical precipitation technique Journal of Colloid and Interface Science, 349 (1). pp. 434-437. ISSN 0021-9797
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S00219...
Related URL: http://dx.doi.org/10.1016/j.jcis.2010.05.086
Abstract
Nano-gold dispersed water based nanofluid has been prepared following the chemical reduction method. Crystallite size, particle size/shape/morphology, and purity of the nanoparticles have been characterized using X-ray diffraction, scanning and transmission electron microscopy and energy dispersion spectroscopy, respectively. The degree of thermal conductivity enhancement of the nanofluid (with respect to the base fluid) as a function of concentration and size of gold nanoparticle has been determined using the transient hot-wire technique. The degree of enhancement increases with increase in concentration and decrease in size of nanoparticles. The maximum enhancement recorded is ~48% at 0.00026 vol.% concentration and 21 nm average particle size.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Nanofluid; Gold; Particle Size; Particle Concentration; Transient Hot-wire Method |
| ID Code: | 18916 |
| Deposited On: | 17 Nov 2010 13:27 |
| Last Modified: | 06 Jun 2011 04:29 |
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