Abstract
The effect of photovoltaic PV panels on strawberry growth and the greenhouse microclimate has been studied meanwhile; the annually generated electric energies were estimated by the PolySun program. The peak power of the opaque PV was 310 W. There were four PV panels distributed on the top of greenhouse south plastic roof at a vertical distance of 0.08 m as an isolated air layer under the PV panels at a tilt angle of 30 ͦ. Meanwhile at a horizontal distance between panels of 1.1 m to allow the solar light entering greenhouse. Results revealed that the greenhouse air temperature and solar radiation under the un-shaded greenhouse were higher than that of the shaded greenhouse by opaque PV. Moreover, the opaque PV temperatures ranged from 45 ᵒC to 47.5 ᵒC. The simulation results showed that the annual generated electric energy of the opaque PV panels was 3195 kWh which could cover approximately 30.4% of the annual electric energy demand for environmental control. In addition, there were no significant differences in the number of leaves, flowers including fruits, and chlorophyll contents between strawberries under the shaded and un-shaded greenhouses. In a word, the integration of opaque PV at a specific distribution is highly recommended to provide the required light for photosynthesis and energy for greenhouse without harming the growth of strawberries.
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Claims 5
Claim · model-written summary
Unshaded greenhouse air temperature and solar radiation were higher than with opaque PV shading.
- Taxon
- STRAWBERRY
_single2.jpg?width=60)
Fragaria ×ananassat0 - Outcome
- greenhouse air temperature and solar radiatione0
- Direction
- highere0
- Comparator
- shaded greenhouse by opaque PVe0
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“greenhouse air temperature and solar radiation under the un-shaded greenhouse were higher than that of the shaded greenhouse by opaque PV”
t0“STRAWBERRY”
Claim · model-written summary
Opaque PV temperatures ranged from 45 to 47.5 degrees Celsius.
- Taxon
- STRAWBERRYFragaria ×ananassat0
- Outcome
- opaque PV temperaturese0
- Value
- 45 ᵒC to 47.5 ᵒCe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“opaque PV temperatures ranged from 45 ᵒC to 47.5 ᵒC”
t0“STRAWBERRY”
Claim · model-written summary
Simulated annual opaque PV electricity generation was 3195 kWh, about 30.4% of annual environmental-control electricity demand.
- Taxon
- STRAWBERRYFragaria ×ananassat0
- Outcome
- annual generated electric energye0
- Value
- 3195 kWhe0
- Qualifier
- approximately 30.4% of the annual electric energy demand for environmental controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“annual generated electric energy of the opaque PV panels was 3195 kWh which could cover approximately 30.4% of the annual electric energy demand for environmental control”
t0“STRAWBERRY”
Claim · model-written summary
Leaf number, flower and fruit number, and chlorophyll content did not differ significantly between shaded and unshaded strawberries.
- Taxon
- strawberriesFragaria ×ananassae0
- Treatment
- shadede0
- Outcome
- number of leaves, flowers including fruits, and chlorophyll contentse0
- Direction
- no significant differencese0
- Comparator
- un-shaded greenhousese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no significant differences in the number of leaves, flowers including fruits, and chlorophyll contents between strawberries under the shaded and un-shaded greenhouses”
Claim · model-written summary
The authors recommend integration of opaque PV at the specified distribution for greenhouse light and energy without harming strawberry growth.
- Taxon
- strawberriesFragaria ×ananassae0
- Outcome
- integration of opaque PV at a specific distributione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“integration of opaque PV at a specific distribution is highly recommended to provide the required light for photosynthesis and energy for greenhouse without harming the growth of strawberries”
The same questions in other papers
shade · physiology: pigments · Fragaria x ananassa (strawberry)Positive and negative results
2 in the opposite direction
- positive
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.