Research Article
Determination of Performance Measuring Parameters of an Improved Dual Paraboloid Solar Cooker
Table 3
Calculation of the second figure of merit and the cooking power for the dual parabolic reflector solar cooker for experiment numbers 4, 5, and 6.
| | Exp. number | Effective aperture area (m2) | Twi (°C) | Twf (°C) | Tav (°C) | Hav (W/m2) | Duration τ (seconds) | (M · C)w (J/K) | F2 | P (W) |
| | 4 | 1.08 | 60 | 92 | 36.6 | 852.4 | 960 | 16,800 | 0.638 | 560 | | 5 | 1.08 | 60 | 91 | 41.8 | 814.6 | 1560 | 16,800 | 0.453 | 333.8 | | 6 | 1.08 | 65 | 91 | 42.8 | 990.2 | 780 | 16,800 | 0.610 | 560 |
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