RT journal article
T1 Hybrid nanofluids based on WSe2-WO3 and a siloxane-based fluid with application in concentrated solar power
A1 Gragera García,  Saray
A1 Martínez Merino, Paloma
A1 Gallardo Bernal, Juan Jesús
A1 Carrillo Berdugo, Iván
A1 Santos Martínez, Deseada María de los
A1 Gragera García, María
A1 Alcántara Puerto, Rodrigo
A1 Navas Pineda, Francisco Javier
A2 Química Física
K1 Concentrated solar power
K1 Linear silicone fluid
K1 Nanofluids
K1 Parabolic trough collector
K1 Thermal properties
AB Improving the efficiency of renewable energies to meet the growing demand for energy is one of the main goals of the research community. In this sense, concentrated solar power plants are a research line of interest at the present time. Therefore, in this work, hybrid nanofluids were prepared based on WSe2-WO3 nanosheets synthesized in our laboratory and a silicon oil-based fluid. These were widely characterized to determine whether the efficiency of the heat transfer processes occurring in this kind of plants can be improved. Thus, temporal physical stability was analysed, the nanofluids reaching a stability after several days that was maintained for over 40 days. Once stable, measurements were taken of the properties of interest of the nanofluids, namely density, surface tension, dynamic viscosity, isobaric specific heat and thermal conductivity. The density, surface tension and dynamic viscosity values for the nanofluids did not change significantly with respect to the base fluid. Their isobaric specific heat was improved by 5 %, while their thermal conductivity increased by about 6 %. All the properties measured were used to estimate a figure of merit for the application of nanofluids in concentrating solar power plants. Enhancements of about 19 % were found for two nanofluids, suggesting they are a promising option for use as heat transfer fluids in CSP-PTC plants.
PB Elsevier B.V.
SN 0167-7322
YR 2025
FD 2025
LK http://hdl.handle.net/10498/38176
UL http://hdl.handle.net/10498/38176
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 12-nov-2026