%0 Journal Article 
%A Santos Martínez, Deseada María de los
%A Gallardo Bernal, Juan Jesús
%A Carrillo Berdugo, Iván
%A Alcántara Puerto, Rodrigo
%A Estellé, Patrice
%A Gragera García,  Saray
%A Gragera García, María
%A Navas Pineda, Francisco Javier
%T Nanofluids Based on Pd Nanoparticles and a Linear Silicone-Based Fluid: Toward Highly Efficient Heat Transfer Fluids for Concentrated Solar Power
%D 2024
%@ 2168-0485
%U http://hdl.handle.net/10498/34667
%X Meeting the growing energy demand with the lowest environmental impact is one of the greatest challenges facing our society. To this end, improving the efficiency of solar energy technologies is a must. In this work, nanofluids based on a linear silicone-based fluid and Pd nanoparticles were prepared. The linear silicone-based fluid has been designed for use in concentrated solar power involving parabolic trough collector technology (CSP-PTC). The nanofluids showed high physical and chemical stability. In addition, the Pd-based nanofluids showed enhanced isobaric specific heat and thermal conductivity values without a significant increase in viscosity. The increase in the specific heat with respect to the base fluid was about 5.5%, while thermal conductivity increased by 8.5%. Analyzing the interactions between the nanoparticles and the base fluid provides a clearer understanding of the improvements in these properties. Finally, the properties measured were used to analyze the performance of the nanofluids in CSP-PTC, considering the collector and the exchanger efficiency. The overall efficiency improved by about 50%, which is a promising result.
%K nanofluids
%K concentrated solar power
%K thermal properties
%K rheological properties
%K parabolic trough collectors
%~ Universidad de Cádiz