Fig. 3
From: On the specific heat capacity enhancement in nanofluids
Specific heat capacity of the nanofluid vs. particle mass fraction. Top: Specific heat capacity of the eutectic base mixture NaNO 3/KNO 3 (60:40) to which Al 2 O 3 nanoparticles were added [33]. The temperature is 300 °C. Bottom: Specific heat capacity of the eutectic base mixture NaNO 3/KNO 3 (60:40). The solid squares again are Heilmann’s data [33]. Open squares connected via a solid line are data obtained by Chieruzzi et al. [30] for the same system. The circles (triangles) are data obtained for the eutectic base mixture NaNO 3/KNO 3 (60:40) to which TiO 2 (SiO 2) nanoparticles were added. Open symbols are data by Chieruzzi et al. [30]. Solid circles indicate TiO 2 data by Lasfargues et al. [32]. Solid triangles indicate SiO 2 data by Andreu-Cabedo et al. [34]