Selective solar absorption of nanofluids for photovoltaic/thermal collector enhancement

Natasha E. Hjerrild, Sara Mesgari, Felipe Crisostomo, Jason A. Scott, Rose Amal, Xuchuan Jiang, Robert A. Taylor

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

3 Citations (Scopus)

Abstract

Selectively-absorbing nanofluids were synthesized and evaluated for spectrum splitting PV/T collector applications. Core-shell silver-silica (Ag-SiO2) nanodiscs and multi-walled carbon nanotubes (MWCNTs) were suspended in water at varying dilutions and then tested as an optical filter placed between a light source and silicon solar cell. A concentrated Ag-SiO2 solution diluted with an aqueous MWCNT solution yielded higher thermal efficiencies than when diluted by the same volume of water. However, AgSiO2-MWCNT mixtures yielded a lower electrical output than aqueous AgSiO2 dilutions due to the non-selective absorption of MWCNTs. The most concentrated Ag-SiO2 nanofluid (0.026wt%) yielded a peak thermal efilciency of 65%, to deliver the greatest combined efficiency of ∼72%.

Original languageEnglish
Title of host publicationNanoscale Heat Transport - From Fundamentals to Devices
EditorsPatrick E. Hopkins
PublisherMaterials Research Society
Pages53-58
Number of pages6
Volume1779
ISBN (Electronic)9781510826342
ISBN (Print)9781605117560
DOIs
Publication statusPublished - 2015
EventMaterials Research Society Symposium (MRS) 2015: Spring Meeting - San Francisco, United States of America
Duration: 6 Apr 201510 Apr 2015

Publication series

NameMRS Advances
PublisherCambridge University Press
ISSN (Electronic)2059-8521

Conference

ConferenceMaterials Research Society Symposium (MRS) 2015
Abbreviated titleMRS 2015
CountryUnited States of America
CitySan Francisco
Period6/04/1510/04/15
OtherMaterials Research Society

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