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Viscosity and isobaric specific heat capacity of alumina nanoparticle enhanced ionic liquids: An experimental approach

Temperature and loading dependences on the rheological behavior and isobaric specific heat capacity of several suspensions of alumina nanoparticles in a binary mixture of [C2mim][CH3SO3] ionic liquid and water were experimentally determined to assess its potential condition of enhanced heat transfer...

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Published in:Journal of molecular liquids 2020-11, Vol.317, p.114020, Article 114020
Main Authors: Cherecheş, Elena Ionela, Prado, Jose I., Ibanescu, Constanta, Danu, Maricel, Minea, Alina Adriana, Lugo, Luis
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description Temperature and loading dependences on the rheological behavior and isobaric specific heat capacity of several suspensions of alumina nanoparticles in a binary mixture of [C2mim][CH3SO3] ionic liquid and water were experimentally determined to assess its potential condition of enhanced heat transfer fluids. Rheological tests show a clear Newtonian behavior for the base fluid and the NEILs with lower Al2O3 concentrations while higher amounts of alumina nanoparticles entail non-Newtonian fluids and increase in viscosity up to 78%. The heating-cooling viscosity tests reveal that no significant viscosity hysteresis occur and VFT equation adequately describe the temperature dependence. Isobaric specific heat capacities decrease (
doi_str_mv 10.1016/j.molliq.2020.114020
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subjects Al2O3 nanoparticles
Ionic liquids
Nanoparticle enhanced ionic liquids (NEILs)
Specific heat capacity
Viscosity
title Viscosity and isobaric specific heat capacity of alumina nanoparticle enhanced ionic liquids: An experimental approach
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