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It
was also proven that the elements structural such as the height of the
greenhouse and the shape of the arc strongly influence the output of
the ventilation of the greenhouse like its climate.
The most
effective orientation of the openings of ventilation was also studied.
It was shown that the fact of parallel to directing the openings of
ventilation the direction of the wind is the most effective strategy
but that that also causes a strong heterogeneity of the climate. If the
direction of the wind would be perpendicular to the line of the
gutters, it is also preferable to direct the openings of ventilation in
the same direction as the wind rather than to direct them in the
direction opposed to this one.
Figure
1: Diagram of the basic plastic greenhouse used for this study (of
Multiclair type of company FILCLAIR SA). It is provided with eight
vaults and of an arc, openings of ventilation continues d'1.5 m in
height located at height of the gutters and its dimensions are as
follows: 8 X 9,6 m of width, 80 m length and 5,93 m height.
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