Experimental study for the reproduction of particulate matter deposition on greenhouse plastic films

Lee, Jong-hyuk; Hong, Eunmi; Lee, Sang-ik; Jeong, Yeon Ik; Seo, Byung-hun; Seo, Ye-jin; Kim, Dong–Su; Kwon, Hyeok-joon; Choi, Wook

doi:10.1016/j.biosystemseng.2022.08.012

Cited by 3 publications

(2 citation statements)

References 24 publications

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“…PVC greenhouse films have the best insulation effect and are easy to stick and repair but are prone to pollution and have a rapid decrease in transmittance; PE greenhouse film has good transparency and is easy to clean dust and dirt, but its insulation performance is poor. The insulation and light transmittance of EVA greenhouse film are between PE and PVC greenhouse films [2]. There are still some challenges in PV greenhouse technology, such as the cost, efficiency, and reliability of PV panels, as well as technical issues in terms of light uniformity, ventilation, and temperature control inside the greenhouse, and solving these challenges requires continuous technological innovations and improvements.…”

Section: Introductionmentioning

confidence: 99%

Experiment on the Uniformity of Internal Lighting in Zigzag Photovoltaic Greenhouses by Grating Plates

Wang,

Si,

Liu

2024

Horticulturae

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As one of the main projects of facility agriculture promotion, the PV (photovoltaic) greenhouse has the problems of PV power generation competing for light with crop production, strong indoor chiaroscuro, and uneven light distribution. The internal light uniformity is tested by a zigzag greenhouse model to compare the light transmission effects of different light-transmitting materials applied to PV greenhouses. Altogether, 20 line/inch 3 mm and 30 line/inch 3 mm, 40 line/inch 2 mm, 25 line/inch 4 mm grating plates and 2 mm and 3 mm thick ordinary glass were used as light-transmitting components, and the light intensity and light uniformity in the greenhouse were the measurement indicators. The results show that the use of grating plates as covering material can improve the light intensity at the intersection of light and dark, but the overall light transmittance is not as good as glass because it is plastic, which ages easily with low light transmittance. It can also improve the use of land under the shade of PV modules to provide a better growth environment for crops. The test results show that using grating plates can maximize the light intensity of the greenhouse and solve the problem of uneven distribution of light inside the greenhouse caused by obstruction of PV equipment and greenhouse framework. In sunny weather, the light intensity in three rows of the measurement points at the north side in the greenhouse is greater than 20,000 Lx, and the light environment in other areas is between 5000 Lx and 20,000 Lx, which is suitable for planting shade-loving crops.

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Section: Introductionmentioning

confidence: 99%

Experiment on the Uniformity of Internal Lighting in Zigzag Photovoltaic Greenhouses by Grating Plates

Wang,

Si,

Liu

2024

Horticulturae

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“…Crops in facilities are not directly affected by PM, but they are adversely affected by it. When the ionic components of PM are wetly attached to the covering material, they leave a white coating on the covering material when it dries, reducing light transmittance and internal temperature (El-Shobokshy and Hussein, 1993;Sim and Song, 2019;Lee et al, 2022). PM attached to the covering material is mainly removed by rainfall.…”

Section: Introductionmentioning

confidence: 99%

Changes in Light Transmittance of Greenhouse Covering Materials and Cucumber Growth as Affected by Particulate Matter

Hong,

Ha,

Kwack

2023

J. Bio-Env. Con.

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In recent years, fine and yellow dust pollution has become serious in Korea and has negatively affected crop production. Particulate matter (PM) adheres to greenhouse coverings, and it reduces the amount of solar radiation transmitted into a greenhouse. A reduction in light transmittance can have a direct effect on crop photosynthesis and an indirect effect on air temperature in a greenhouse, which can lead to differences in crop yield. The objectives of this study were to investigate the changes in light transmittance of different cover materials by PM and to determine the changes in cucumber growth in a greenhouse due to reduced light transmittance. We measured the changes in light transmittance of polyethylene (PE) and polyolefin (PO) films in the PM generation chambers. Also, cucumber plants were cultivated in a greenhouse with four different light reduction treatments (0, 10, 20, and 30% reduction of light transmittance). The initial light transmittance of PO film was higher than that of PE film and the decrease in light transmittance of PO film due to PM was less than that of PE film. The vegetative growth of cucumber was promoted under the reduced light transmittance treatments; however, the yield of cucumber was highest in the control (0% reduction of light transmittance). From the results, we confirmed that PO film was less PM adhesion and that cucumber yield during the spring season can be reduced by the reduction in light transmittance due to PM.

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Large-scale automatic extraction of agricultural greenhouses based on high-resolution remote sensing and deep learning technologies

Chen,

Li,

Wang

et al. 2023

Environ Sci Pollut Res

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Experimental study for the reproduction of particulate matter deposition on greenhouse plastic films

Cited by 3 publications

References 24 publications

Experiment on the Uniformity of Internal Lighting in Zigzag Photovoltaic Greenhouses by Grating Plates

Experiment on the Uniformity of Internal Lighting in Zigzag Photovoltaic Greenhouses by Grating Plates

Changes in Light Transmittance of Greenhouse Covering Materials and Cucumber Growth as Affected by Particulate Matter

Large-scale automatic extraction of agricultural greenhouses based on high-resolution remote sensing and deep learning technologies

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