Thermal Performance of a Dimpled Tube Parabolic Trough Solar Collector (PTSC) with SiO₂ Nanofluid

Table 2

Specification of the nanoparticle.

Properties	Values
Nanoparticle material	SiO2
Density	4170 kg/m^3
Molar mass of SiO2	60.0843 g/mol
Nanoparticle size	10-15 nm
Melting point	1986 K
Boiling point	2503 K
Thermal conductivity	1.38 W/mK
Crystal structure	Cristobalite
Purity of nanoparticle	99.7%
Specific surface area	160 m^2/g
Volume density	4170 kg/m^3
Specific heat	880 kJ/kg K