The main heat-technical parameters of solar greenhouses in the southern climate of Uzbekistan

In the article, the main thermal and technical parameters of solar greenhouses in the climatic conditions of the city of Karshi, southern region of Uzbekistan, were studied. The results of the calculation of the heat load of solar greenhouses with different transparent coatings with a useful area of 100 m2 in the conditions of the city of Karshi are presented. According to the calculation results, it was determined that the maximum heat load of the studied semi-cylindrical one-layer film sunken greenhouse is equal to Qhe=50600 W (50.6 kW), and that of the two-layer film greenhouse Qhe=29614 W (29.61 kW) is equal to

Mathematical modeling the heat balance of a solar pond device

This article describes the method of accumulation and use of solar energy in the development of heat energy necessary for industrial processes and building heat supply in the southern climate of Uzbekistan. The thermal and technical calculation of the experimental solar pond built in the city of Karshi (size is 0.7m and 1.5m, height is 1.5m) is presented in the research paper. The energy storage efficiency of the solar pond layers was calculated analytically at 25% salt concentration of pond water, in values of 700 W/m2, 800 W/m2, 900 W/m2 and 1000 W/m2 of solar radiation, in values of 20 оС, 25 оС, 30 оС, 35 оС of ambient temperature in the non-stationary mode of solar pond device. Mathematical model of the time variation of layer temperatures was developed (on the basis of boundary conditions) during the propagation and absorption of solar radiation along the depth of the solar pond

The main heat-technical parameters of solar greenhouses in the southern climate of Uzbekistan

In the article, the main thermal and technical parameters of solar greenhouses in the climatic conditions of the city of Karshi, southern region of Uzbekistan, were studied. The results of the calculation of the heat load of solar greenhouses with different transparent coatings with a useful area of 100 m2 in the conditions of the city of Karshi are presented. According to the calculation results, it was determined that the maximum heat load of the studied semi-cylindrical one-layer film sunken greenhouse is equal to Qhe=50600 W (50.6 kW), and that of the two-layer film greenhouse Qhe=29614 W (29.61 kW) is equal to

Mathematical modeling the heat balance of a solar pond device

This article describes the method of accumulation and use of solar energy in the development of heat energy necessary for industrial processes and building heat supply in the southern climate of Uzbekistan. The thermal and technical calculation of the experimental solar pond built in the city of Karshi (size is 0.7m and 1.5m, height is 1.5m) is presented in the research paper. The energy storage efficiency of the solar pond layers was calculated analytically at 25% salt concentration of pond water, in values of 700 W/m2, 800 W/m2, 900 W/m2 and 1000 W/m2 of solar radiation, in values of 20 оС, 25 оС, 30 оС, 35 оС of ambient temperature in the non-stationary mode of solar pond device. Mathematical model of the time variation of layer temperatures was developed (on the basis of boundary conditions) during the propagation and absorption of solar radiation along the depth of the solar pond