ArticleScientific reports2026
Experimental investigation of solar collector efficiency enhancement using surfactant stabilized MWCNT and Al₂O₃ hybrid nanofluid.
Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
This work presents a novel outdoor experimental evaluation of a thermal performance of solar flat plate collector employing water-based alumina (Al₂O₃) nanofluids and a multi-walled carbon nanotube (MWCNTs)-Al₂O₃ (50:50) hybrid nanofluid as working fluids. Experiments were conducted under real solar conditions (9:00-15:00 h) at nanoparticle concentrations of 0.1, 0.3, and 0.5 vol% to examine heat transfer coefficient, thermal efficiency, and exergy performance. Results reveal that the hybrid nanofluid exhibited consistent superiority over mono-nanofluids and water, achieving a maximum heat transfer coefficient of 357.4 W/m²K at 0.5 vol%. At a peak solar irradiance of 1065 W/m
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