Greenhouse and method of cultivation under glass
OwnerGiulio Lo Presti, Luca Menardiinventors
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Abstract
A greenhouse (1) is provided with an air humidifier (10) and a condenser ((35): the humidifier (10) has a semi-permeable membrane, of the type which permits the passage of water vapour between opposite sides of the membrane if there is a vapour pressure gradient between the said sides. A flow of sea water (13) and a flow of air (14) taken from the outside are supplied to the humidifier (10) and sent to opposite sides of the membrane, in such a way that the flow of air (14) is humidified before being introduced into the greenhouse; the humidified air (30) is then condensed in the condenser (10) to produce condensate (36) to be used for irrigating the plants.
Claims24
A greenhouse comprising a structure delimiting a growing environment, and an air humidifier, the greenhouse being characterized in that the humidifier comprises at least one exchange element having a semi-permeable membrane, which allows water vapour to pass between opposite sides of the membrane if there is a vapour pressure gradient between the sides, and in that the greenhouse also comprises first and second supply means for bringing a flow of water arid a flow of air respectively into contact with the opposite sides of the membrane.
A method of cultivation under glass, characterized in that it comprises the steps of:
- providing a greenhouse with an air humidifier comprising at least one exchange element having a semi-permeable membrane which allows water vapour to pass between opposite sides of the membrane if there is a vapour pressure gradient between the sides;
- humidifying a flow of air by the exchange of water vapour between a flow of water and the flow of air, the flow or air and the flow of water being brought into contact with opposite sides and respectively of the membrane;
- introducing the humidified air leaving the humidifier into the greenhouse.
Dependencies are inferred from the claim text.