It is also well suited for organic treatments, spraying of manure and biodynamics. Beyond the interest of not wasting this natural resource collected by the roof, rainwater is the best irrigation water (neutral ph, not mineralized, no pollutants, no chlorine, no germs …). A cold room located here can divide the energy consumption by 3.Ī rainwater collection and storage system is used to irrigate the plants. This has the effect of keeping the heat in the southern zone and conversely keeping fresh storage areas in the north requiring low temperatures. The entire north face of the greenhouse is composed of a strongly insulating wall. The north wall is the storage space, which keeps the crops cool. To collect optimal sunlight and maximum solar energy, the inclination of this wall is 65 ° relative to the horizontal, almost perpendicular to the rays of the winter sun. The south wall is transparent (here in glass) so that the sun’s rays enter the greenhouse. The good insulation of the walls to the outside and the presence of an air gap in the roof polycarbonate sheets, keep the heat in the greenhouse. All this is automated system using thermal cylinders that do not consume energy. The natural convection of the air flows allows the outside air to enter through some openings along the edges of the greenhouse downwards and to escape over the entire length at the highest point of the greenhouse, which avoids overheating. For example, at night in winter, the temperature difference between indoor and outdoor can reach up to 20 ° in some areas of the greenhouse The natural convection of the air flows allows the outside air to enter by means of openings along the edges of the greenhouse at the bottom and causing them to escape over the entire length of the ridge at the highest point of the greenhouse.
Thus, it stores solar energy during the day and restores it at night or during cloud sequences. It is its components and its design that isolate it to reduce thermal losses. Fragrant, aromatic and medicinal plantsĪlso named “passive solar greenhouse”, the bioclimatic greenhouse is an environmentally sustainable approach.Diokhar & Nobandane seed farm – Mbour, Senegal.
Gouloumbou seed farm, Tambacounda – Senegal.Yagma Garden, Ouagadougou – Burkina Faso.
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