EXPERIMENTAL STUDIES OF TEMPERATURE REGIMES OF A DUO-SLOPE TRENCH-TYPE SOLAR GREENHOUSE WITH FILM TRANSLUCENT FENCES

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13 сентябр 2023

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EXPERIMENTAL STUDIES OF TEMPERATURE REGIMES OF A DUO-SLOPE TRENCH-TYPE SOLAR GREENHOUSE WITH FILM TRANSLUCENT FENCES

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The article presents the results of studies of the optical characteristics of a composite polyethylene film (CPP) (South Korea), manufactured using the Heungil technology for solar greenhouses with a single- and two-layer translucent coating. It has been established that in the visible region of the spectrum the transmittance (T) of a two-layer translucent coating is lower than that of a single-layer coating. In the infrared spectrum, the graphs of the transmittance of one- and two-layer coatings intersect. The composition of the CPP was determined by X-ray diffraction analysis using a Rigaku Mini Flex 600 diffractometer. Based on the results obtained, the design of an energy-saving trench-type double-slope solar greenhouse was modernized. Experiments were carried out to determine the thermal parameters of a trench-type solar greenhouse without the use of traditional fuels. The temperature regimes, relative humidity of solar greenhouses with one- and two-layer CPPs were studied under warm (December 7-8, 2022) and cold (January 12-13, 2023) weather conditions. The experiments showed that on frosty days (January 12-13, 2023) the night temperature of the air in a trench-type solar greenhouse with single-layer and two-layer film coatings, respectively, was -2 0С and 2.10С.

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Teglar

# temperature# mode# transmittance# spectrophotometer# X-ray diffraction analysis# solar greenhouse# trench# polyethylene film

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ROI:

https://eroi.uz/11.0008/A0923-0020

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