Plasmonic nanofluids enhanced solar thermal transfer liquid

Md Mahfuzur Rahman, Hammad Younes, George Ni, Jin You Lu, Aikifa Raza, Tie Jun Zhang, Nicholas Xuanlai Fang, Amal Al Ghaferi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

10 Scopus citations

Abstract

Plasmonic nanostructures suspended in a liquid are known to offer enhanced absorption of light and improved photo-thermal efficiency comparing with conventional solar absorbers. This approach localizes high temperatures to the interior of the liquid through efficient trapping of incoming light via scattering and absorption mechanisms. Theoretical studies show that Ag exhibits the highest efficiency of plasmonic excitations, and the plasmonic absorption band can be shifted to cover the visible wavelength ranges by loading the Ag NPs onto silica core. In this work, silica-core decorated with Ag NPs are synthesized through the chemical reduction method and their morphological and optical properties are characterized using transmission electron microscope (TEM) and UV-Vis-NIR spectrophotometer. The characterization results show the potentials of light absorbing plasmonic metal-dielectric nanoparticles suspended in water for producing steam at high efficiencies upon solar illumination. The experimental work suggests that the vapor generation efficiency can be as high as 63.82% at solar concentrations of 10 suns for the concentration of 0.5 wt% of palsmonic nanofluid.

Original languageBritish English
Title of host publicationSolarPACES 2016
Subtitle of host publicationInternational Conference on Concentrating Solar Power and Chemical Energy Systems
ISBN (Electronic)9780735415225
DOIs
StatePublished - 27 Jun 2017
Event22nd International Conference on Concentrating Solar Power and Chemical Energy Systems, SolarPACES 2016 - Abu Dhabi, United Arab Emirates
Duration: 11 Oct 201614 Oct 2016

Publication series

NameAIP Conference Proceedings
Volume1850
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference22nd International Conference on Concentrating Solar Power and Chemical Energy Systems, SolarPACES 2016
Country/TerritoryUnited Arab Emirates
CityAbu Dhabi
Period11/10/1614/10/16

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