Table 1 Summary of the previous published works and present work in salt-based nanofluids
From: Increment of specific heat capacity of solar salt with SiO2 nanoparticles
Authors | Year | Salt composition | Nanoparticles | Preparation method | Results | Ref |
---|---|---|---|---|---|---|
Shin and Banerjee | 2011 | Li2CO3 (62%) + K2CO3 (38%) | SiO2 (10 nm), 1% wt. | Salt + water (1:100) | Cp: +19% to +24% | [10] |
Nanoparticle dispersion in ultrasonic bath (100 min). Drying in hot plate (200°C) | ||||||
Shin and Banerjee | 2011 | BaCl2 (34%) + NaCl (13%) + CaCl2 (40%) + LiCl (13%) | SiO2, 1% wt. | Salt + water (1:100) | Cp: +14.5% | [16] |
Nanoparticle dispersion in ultrasonic bath (100 min). Drying in hot plate (200°C) | ||||||
Lu and Huang | 2013 | NaNO3 (60%) + KNO3 (40%) | Al2O3 (13 nm, 90 nm), 0.9% to 4.6% wt. | Salt + water (1:100) | Cp: -10%, 4.6% wt. | [17] |
Nanoparticle dispersion in ultrasonic bath (100 min). Drying in hot plate (105°C) | ||||||
Tiznobaik and Shin | 2013 | Li2CO3 (62%) + K2CO3 (38%) | SiO2 (5 to 60 nm), 1% wt. | Salt + water (1:100) | Cp: +23% to +29% | [11] |
Nanoparticle dispersion in ultrasonic bath (100 min). Drying in hot plate (200°C) | ||||||
Tiznobaik and Shin | 2013 | Li2CO3 (62%) + K2CO3 (38%) | SiO2 (10 nm), 1% wt. | Salt + water (1:100) | Cp: +26% | [12] |
Nanoparticle dispersion in ultrasonic bath (100 min). Drying in hot plate (200°C) | Cp: +3% (addition NaOH) | |||||
Shin and Banarjee | 2013 | Li2CO3 (62%) + K2CO3 (38%) | SiO2 (2 to 20 nm), 1% wt. | Salt + water (1:100) | Segregation | [13] |
Nanoparticle dispersion in ultrasonic bath (100 min). Drying in hot plate (100°C) | Cp: +124% (zone A) | |||||
Cp: +0% (zone B) | ||||||
Dudda and Shin | 2013 | NaNO3 (60%) + KNO3 (40%) | SiO2 (5 nm, 10 nm, 30 nm, 60 nm), 1% wt. | Salt + water (1:100) | Cp: +10% (5 nm) +13% (10 nm), +21% (30 nm), +28% (60 nm) | [18] |
Nanoparticle dispersion in ultrasonic bath (100 min). Drying in hot plate (200°C) | ||||||
Chieruzzi et al. | 2013 | NaNO3 (60%) + KNO3 (40%) | SiO2 (7 nm), Al2O3 (13 nm), TiO2 (20 nm), SiO2 + Al2O3(2 to 200 nm), 0.5% to 1.5% wt. | Salt + water (1:100) | Cp: +22.5% (SiO2 + Al2O3 (2 to 200 nm 1.0% wt.)) | [19] |
Nanoparticle dispersion in ultrasonic bath (100 min). Drying in hot plate (200°C) | H: +15% (all np except TiO2, 1% wt.) | |||||
Jo and Banarjee | 2014 | Li2CO3 (62%) + K2CO3 (38%) | Graphite (50 nm) + gum arabic | Salt + water (1:100) | Segregation | [14] |
Nanoparticle dispersion in ultrasonic bath (120 min). Drying in hot plate (200°C) | Cp: +100% (material 1) | |||||
Cp: +33% (material 2) | ||||||
Shin and Banarjee | 2014 | Li2CO3 (62%) + K2CO3 (38%) | Al2O3 (10 nm), 1% wt. | Salt + water (1:100) | Cp:+32% | [15] |
Nanoparticle dispersion in ultrasonic bath (120 min). Drying in hot plate (100°C) | ||||||
Ho and Pan | 2014 | NaNO3 (7%) + KNO3 (53%) + NaNO2 (40%) | Al2O3 (<50 nm), 0.016% to 1% wt. | Salt + nanoparticle aqueous suspension (20% wt.) | Cp: +19.9% (0.063% wt.) | [20] |
Nanoparticle dispersion by mechanic stirring at high temperature (180 min.) | ||||||
Present work | NaNO3 (60%) + KNO3 (40%) | SiO2 (12 nm), 0.5% to 2.0% wt. | Salt + water (1:10) | Cp: +25% (1.0% wt.) | - | |
Nanoparticle dispersion in ultrasonic probe (5 min). Drying in hot plate (100°C) |