RESEARCH ON DESIGN FACTORS THAT INFLUENCE ENERGY CONSUMPTION FOR AIR-CONDITIONING IN GREENHOUSES FOR VEGETABLES AND FLOWERS

Abstract

In greenhouses complex thermal phenomena take place for the exchange of hot or cold air, been signaled at the same time air circulation due to frequent venting. Air conditioning is one of the decisive moments in the scientific exploitation of greenhouses. By ventilation it avoids any accidents that may cause disturbance to the climate factors, especially in a hermetically closed greenhouse. Conditioning involves constant control and permanent supervising of heating, ventilation, moisture, shading and the concentration of carbon dioxide, using different methods, systems and devices. Automatic control ensure achievement of optimum parameters of the vegetation factors ensuring reliable obtaining productions. All the microclimate factors are influenced by the materials used in building of the greenhouse, the shape chosen for the design, the location and orientation of greenhouse, relief, exhibition ground, and soil composition.