| Abstrakt: |
Arthritis This article proposes calculation expressions for determining the timing of shelter, opening, as well as the duration of the periods of operation of greenhouses in autumn and spring, during which heating in film solar greenhouses of a semi-cylindrical shape, depending on the number of layers and orientation to the cardinal points of their translucent fences of greenhouses and can be carried out only at the expense of use of solar energy. This article propose calculated expressions to determine the timing of shelter, deployment, as well as the duration of the periods of operation of greenhouses in autumn and spring, during which heating in semi-cylindrical film solar greenhouses, depending on the number of layers and the orientation to the cardinal points of their translucent greenhouse enclosures, can be carried out only through the use of solar energy. A comparison of the air temperatures in the compared greenhouses also shows the obvious advantage of their latitudinal location compared to the meridional one. As can be seen from the comparison of the temperatures of the air environment, compared solar greenhouses, the advantage of a two-layer translucent fence compared to a single-layer fence, indisputable. [ABSTRACT FROM AUTHOR] |
