Table 2.
Average specific heat capacity for a temperature range of 250°C to 420°C
|
Specific heat capacity (J g
-1
K
-1
) | |||||
|---|---|---|---|---|---|
| Sample (number) | Solar salt | Solar salt +0.5% SiO 2 | Solar salt +1.0% SiO 2 | Solar salt +1.5% SiO 2 | Solar salt +2.0% SiO 2 |
| 1 |
1.40 |
1.53 |
1.85 |
1.61 |
1.64 |
| 2 |
1.57 |
1.55 |
1.95 |
1.54 |
1.65 |
| 3 |
1.39 |
1.52 |
1.85 |
1.41 |
1.34 |
| 4 |
1.46 |
1.62 |
1.78 |
1.38 |
1.54 |
| 5 |
1.58 |
1.43 |
1.82 |
1.48 |
1.49 |
| Average value |
1.48 |
1.53 |
1.85 |
1.51 |
1.53 |
| Standard deviation |
0.09 |
0.07 |
0.06 |
0.09 |
0.12 |
| Enhancement [%] | - | +3.41 | +25.03 | +2.00 | +3.69 |