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Semi-closed greenhouses

Optimizing desert greenhouse production in continental climate

In a semi-closed greenhouse, air is introduced from a climate chamber into the greenhouse using fans and air hoses. Positioned at the external wall of the greenhouse, this climate chamber facilitates the circulation of air. During cooling, outside air is drawn into the chamber through a wall of cooling pads. This process allows for the blending of dry, cool air from the outside with the warm, moist air from within the greenhouse before it is distributed through the air hoses. The carefully designed hole pattern in the hoses ensures an even distribution of air throughout the greenhouse. This innovative system makes the semi-closed greenhouse particularly well-suited for cultivating crops in continental climates, such as deserts.

Optimizing production in (sub)tropical climates

Mechanical cooling provides a solution for regions worldwide experiencing high temperatures and humidity. This involves installing warm/cold exchangers in front of fans to gradually cool the greenhouse by recirculating dry, cold air until reaching the desired final temperature. This method of cooling and dehumidification enables the cultivation of perfect produce in challenging conditions.

Sustainable cultivation in a semi-closed greenhouse

There are two ways to ventilate in a semi-closed greenhouse. Firstly, air can be pushed outside through the greenhouse roof. Alternatively, recirculation involves airflow from the greenhouse into the climate room, then back into the greenhouse. This superior airflow not only enhances the microclimate around the leaves but also increases CO2 exposure for the plants. The outcome is an environmentally friendly cultivation process, yielding sustainable produce.

Food safety

The technical aspects of a semi-closed greenhouse contribute to safe food produce of high quality. The unique airflow and greenhouse facilities/installations ensure optimal dehumidification so mold does not stand a chance. In addition, the semi-closed greenhouse  is under slight overpressure, this, in combination with the insect netting, makes sure that unwanted insects are kept out. As a result, risks of plagues and diseases are drastically lowered in a semi-closed greenhouse.

Optimal results

A semi-closed greenhouse delivers superior crop security through its ideal microclimate, increased sunlight exposure, reduced need for pesticides and fungicides, lower CO2 emissions, decreased water consumption, efficient heat retention, and minimal reliance on fossil fuels. These advantages translate into lower costs and higher revenues for growers.

Greenhouse suitable for every climate condition! Contact us for more information