Research Article
Photovoltaic Greenhouses: Comparison of Optical and Thermal Behaviour for Energy Savings
Table 1
Climatic requirements of the tomato considered in this study.
| Minimum biological |
°C | 6 | Maximum biological |
°C | 30 | Thermal sums |
°C | 1800–2000 | Optimal substrate |
°C | 15–20 | Light intensity for maximum opening stomata | Klux | 10 | Minimum light intensity for starting photosynthesis | Klux | 2 | Maximum light intensity for starting photosynthesis | Klux | 20 | Minimum relative humidity | % | 56 | Maximum relative humidity | % | 92 | Daily optimal humidity | % | 67 | Nightly optimal humidity | % | 84 |
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