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

Autor: Moulefera I; Chemical Engineering Department, Faculty of Chemistry, Regional Campus of International Excellence 'Campus Mare Nostrum', University of Murcia, 30071, Murcia, Spain.; Department of Chemical Engineering, Faculty of Science, University of Málaga, Andalucía TECH, 29071, Málaga, Spain., Pastor AR; Chemical Engineering Department, Faculty of Chemistry, Regional Campus of International Excellence 'Campus Mare Nostrum', University of Murcia, 30071, Murcia, Spain., Fuster MG; Chemical Engineering Department, Faculty of Chemistry, Regional Campus of International Excellence 'Campus Mare Nostrum', University of Murcia, 30071, Murcia, Spain., Delgado-Marín JJ; Chemical Engineering Department, Faculty of Chemistry, Regional Campus of International Excellence 'Campus Mare Nostrum', University of Murcia, 30071, Murcia, Spain. josejavier.delgado@um.es., Montalbán MG; Chemical Engineering Department, Faculty of Chemistry, Regional Campus of International Excellence 'Campus Mare Nostrum', University of Murcia, 30071, Murcia, Spain., Rodríguez-Pastor I; Institute of Chemical Processes Engineering, University of Alicante, 03080, Alicante, Spain., López-Pérez A; Institute of Chemical Processes Engineering, University of Alicante, 03080, Alicante, Spain., Martin-Gullon I; Institute of Chemical Processes Engineering, University of Alicante, 03080, Alicante, Spain., Ramallo-González AP; Department of Electrical Engineering and Electronic Technology, Universidad Politécnica de Cartagena, 30202, Cartagena, Spain., Alarcón M; Electromagnetism and Electronics Department, International Campus of Excellence in the European Context (CEIR) Campus Mare Nostrum, University of Murcia, Murcia, Spain., Víllora G; Chemical Engineering Department, Faculty of Chemistry, Regional Campus of International Excellence 'Campus Mare Nostrum', University of Murcia, 30071, Murcia, Spain. gvillora@um.es.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2024 Jul 30; Vol. 14 (1), pp. 17610. Date of Electronic Publication: 2024 Jul 30.
DOI: 10.1038/s41598-024-67874-1
Abstrakt: 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.
(© 2024. The Author(s).)
Databáze: MEDLINE
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