Phase change characterization of eco-friendly isopropyl palmitate-based graphene nanoplatelet nanofluid for thermal energy applications
نویسندگان
چکیده
Thermal energy storage (TES) facilitates the integration of renewable by decoupling production and consumption, mitigating intermittence issues. However, current TES systems use fossil fuel-based products as media, so development sustainable efficient materials should be investigated. This work aims to design characterization new eco-friendly nanoenhanced phase change (NePCMs) based on dispersions graphene nanoplatelets two different lateral sizes (7.2 40 ?m) in isopropyl palmitate for cold applications. The stability NePCMs was analysed dynamic light scattering, selecting Span® 80 surfactant improve stabilization both nanomaterials within base material. influence nanoadditive concentration temperature transitions solid–liquid were comprehensively studied differential scanning calorimetry, finding out that dispersed nanoadditives do not alter polymorphism palmitate. Additionally, reductions sub-cooling effect higher than 2 K found, with increases latent heat up 5.9 3.9% shorter longer nanoplatelets, respectively. Isobaric capacities also determined temperature-modulated reporting maximum 12% compared
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ژورنال
عنوان ژورنال: Journal of Molecular Liquids
سال: 2022
ISSN: ['0167-7322', '1873-3166']
DOI: https://doi.org/10.1016/j.molliq.2022.119456