RT info:eu-repo/semantics/article
T1 Possible New Heat Transfer Fluid: The IoNanofluid of 1-Ethyl-3-methylimidazolium Dicyanamide + Nano-Titanium Oxide─Studying Its Thermal Conductivity and Viscosity
A1 de Castro, Carlos A. Nieto
A1 Lamas, Angela
A1 V Santos, Fernando J.
A1 Lourenço, Maria José V.
A1 Graber, Teófilo A.
A1 Paredes Mendez, Xavier
AB Ionic liquids with the dicyanamide anion, namely, with 1-alkyl-imidazolium cations, have been receiving attention recently due to their potential applications. The utilization of these liquids as heat transfer fluids, specifically in small heat exchangers and microchannels for microprocessor cooling, is presently deemed highly feasible, as it can be both more efficient and environmentally acceptable. The design of a heat transfer equipment that makes use of fluids requires knowledge of their thermophysical properties. In this regard, dispersions of nanoparticles have been extensively studied in recent years to improve thermal conductivity or obtain desirable optical properties. IoNanofluids is what we have taken to name the result of such dispersions in ionic liquids. In this paper, we report measurements of the thermal conductivity and viscosity of the IoNanofluid of 1-ethyl-3-methylimidazolium dicyanamide, [C2mim][N(CN)2], with 0.5% mass fraction of TiO2 nanoparticles (diameter 20 nm) in the temperature range (293 < T/K < 343), at P = 0.1 MPa. Reasonable enhancements were found for thermal conductivity and viscosity, which were temperature-dependent. The IoNanofluid was found to behave as a non-Newtonian fluid in most of the temperature range studied. A discussion about the possible use of this IoNanofluid as a heat transfer fluid shows that it has very promising properties to be used in heat transfer applications.
PB ACS Publications
SN 0021-9568
YR 2024
FD 2024
LK https://uvadoc.uva.es/handle/10324/82778
UL https://uvadoc.uva.es/handle/10324/82778
LA eng
NO J. Chem. Eng. Data, Jun. 2024, vol. 69, no. 6, pp. 2227–2235
NO Producción Científica
DS UVaDOC
RD 17-feb-2026