Thermal performance of nanofluids based on tungsten disulphide nanosheets as heat transfer fluids in parabolic trough solar collectors

• DOI: 10.1016/j.solmat.2022.111937
• Publication Date: 2022-08-29T08:53:34Z
• Authors: Paloma Martínez-M...; Patrice Estellé; Rodrigo Alcántara; Iván Carrillo-Ber...; Javier Navas
• Keywords: Concentrated solar power

Nanofluids are considered as a new generation of heat transfer fluids since they exhibit thermophysical properties improvements compared with conventional fluids. The high thermal conductivity nanofluids and even the isobaric specific enhancements over liquids make these colloidal suspensions very attractive in many research areas, including solar energy. In this work, based on tungsten disulphide (WS2) nanosheets have been prepared from oil currently used fluid Concentrating Solar Power (CSP) plants. aspect ratio WS2 bidimensional nanostructures provides long-term stability to facilitates transport. Cetyltrimethylammonium bromide polyethylene glycol surfactants improve exfoliation process enhance nanomaterial dispersions. Some such density viscosity base not significantly altered by presence fluid. However, studies shown promising results increases up 33% coefficient 21% Furthermore, it has estimated that overall efficiency CSP system could be improved 31% replacing 2D-WS2-based nanofluids.