Influence of crystal structure on the thermophysical properties and figures-of-merit of propylene glycol: water-based SiC nanofluids
| dc.contributor.author | Vallejo, Javier P. | |
| dc.contributor.author | Febrero-Garrido, Lara | |
| dc.contributor.author | Cacabelos, Antón | |
| dc.contributor.author | González-Gil, Arturo | |
| dc.contributor.author | Lugo, Luis | |
| dc.date.accessioned | 2025-02-03T15:29:41Z | |
| dc.date.available | 2025-02-03T15:29:41Z | |
| dc.date.issued | 2024 | |
| dc.description.abstract | Silicon carbide is a material with a promising thermal conductivity. However, no literature has been found on SiC nanofluids based on propylene glycol:water mixtures (widely used in renewable installations). Likewise, the contribution of α-SiC and β-SiC to the thermophysical properties of nanofluids has scarcely been explored. In this work, dispersions of α-SiC and β-SiC on propylene glycol:water 30:70 wt% at 1 and 2% wt% concentration are designed. Densities, thermal conductivities, dynamic viscosities, and isobaric heat capacities from 293.15 to 313.15 K are obtained by vibrating tube densimetry, transient-hot-wire technique, rotational rheometry and differential scanning calorimetry, respectively. Convective heat transfer performance is also assessed using figures-of-merit. Thermal conductivity and viscosity show a greater dependence on the crystal structure. The β-SiC nanofluids present the highest increases of thermal conductivity (12%) and dynamic viscosity (17%). The least complex crystal structure (β-SiC) exhibits better prospects for convection applications both for laminar and turbulent flow. | |
| dc.identifier.citation | Powder Technology Volume 433, 15 January 2024, 119299 | |
| dc.identifier.issn | 1873-328X | |
| dc.identifier.other | https://doi.org/10.1016/j.powtec.2023.119299 | |
| dc.identifier.uri | http://calderon.cud.uvigo.es/handle/123456789/892 | |
| dc.language.iso | en | |
| dc.publisher | Powder Technology | |
| dc.title | Influence of crystal structure on the thermophysical properties and figures-of-merit of propylene glycol: water-based SiC nanofluids | |
| dc.type | Article |