Novel application for graphene oxide-based ionanofluids in flat plate solar thermal collectors

I. Moulefera; A. R. Pastor; M. G. Fuster; J. J. Delgado-Marín; M. G. Montalbán; I. Rodríguez-Pastor; A. López-Pérez; I. Martin-Gullon; A. P. Ramallo-González; M. Alarcón; G. Víllora

doi:10.1038/s41598-024-67874-1

Scientific Reports (Jul 2024)

Novel application for graphene oxide-based ionanofluids in flat plate solar thermal collectors

I. Moulefera,
A. R. Pastor,
M. G. Fuster,
J. J. Delgado-Marín,
M. G. Montalbán,
I. Rodríguez-Pastor,
A. López-Pérez,
I. Martin-Gullon,
A. P. Ramallo-González,
M. Alarcón,
G. Víllora

Affiliations

I. Moulefera: Chemical Engineering Department, Faculty of Chemistry, Regional Campus of International Excellence “Campus Mare Nostrum”, University of Murcia
A. R. Pastor: Chemical Engineering Department, Faculty of Chemistry, Regional Campus of International Excellence “Campus Mare Nostrum”, University of Murcia
M. G. Fuster: Chemical Engineering Department, Faculty of Chemistry, Regional Campus of International Excellence “Campus Mare Nostrum”, University of Murcia
J. J. Delgado-Marín: Chemical Engineering Department, Faculty of Chemistry, Regional Campus of International Excellence “Campus Mare Nostrum”, University of Murcia
M. G. Montalbán: Chemical Engineering Department, Faculty of Chemistry, Regional Campus of International Excellence “Campus Mare Nostrum”, University of Murcia
I. Rodríguez-Pastor: Institute of Chemical Processes Engineering, University of Alicante
A. López-Pérez: Institute of Chemical Processes Engineering, University of Alicante
I. Martin-Gullon: Institute of Chemical Processes Engineering, University of Alicante
A. P. Ramallo-González: Department of Electrical Engineering and Electronic Technology, Universidad Politécnica de Cartagena
M. Alarcón: Electromagnetism and Electronics Department, International Campus of Excellence in the European Context (CEIR) Campus Mare Nostrum, University of Murcia
G. Víllora: Chemical Engineering Department, Faculty of Chemistry, Regional Campus of International Excellence “Campus Mare Nostrum”, University of Murcia

DOI: https://doi.org/10.1038/s41598-024-67874-1
Journal volume & issue: Vol. 14, no. 1
pp. 1 – 18

Abstract

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Abstract This study presents new ionanofluids (INF) composed of 1-ethyl-3-methylimidazolium acetate ionic liquid (IL) and graphene oxide (GO) nanoparticles which have been assessed for the first time in an experimental flat plate solar thermal collector (FPSC). For this purpose, four types of INFs were synthesized, maintaining a constant concentration of GO nanoparticles dispersed in different base fluids: ionic liquid (IL/GO), a mixture of ionic liquid and water in varying concentrations (IL-water (75–25)%/GO and IL-water (50–50)%/GO), and water (Water/GO). These four INFs were characterized and their thermophysical and physicochemical properties were determined. The results indicated a 37.4% improvement in efficiency and up to a 2.5-fold increase in temperature within the collector when the IL was applied exclusively as the base fluid, compared to water. Furthermore, IL/GO demonstrated excellent stability, showing no signs of deterioration or nanoparticle precipitation two years after preparation and testing. These findings suggest that INFs based on IL and GO nanoparticles significantly enhance the efficiency of FPSC, presenting a promising option for solar energy applications and opening a new research avenue for INFs in the production of domestic hot water.

Published in Scientific Reports

ISSN: 2045-2322 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Medicine; Science
Website: https://www.nature.com/srep/

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