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독립지주식 영농형 태양광 하부 농지 내 일사량 전산모사 및 실측 비교 연구
신윤찬(Shin Yunchan),박정우(Park Jeong-woo),조건영(Jo Geon-young),임철현(Lim Cheol-hyun),박정재(Park Jung-jae) 한국태양에너지학회 2023 한국태양에너지학회 논문집 Vol.43 No.1
This study entailed computational simulations and empirical measurements on solar radiation changes in farmland owing to shade generated from the lower part of an independent pillar-type agrophotovoltaic system structure with improved performance and economic feasibility. The computational simulation and empirical results show a relatively low average solar radiation incident ratio at positions 3-7. In particular, at position 5, the average solar radiation incident ratio exhibits the lowest value, as indicated by the computer simulation and demonstration results. Consequently, three types of improved models were devised to improve the long-term shading area at positions 3-7. The average solar radiation incident ratio on the direct rear side of the module in Model 1 is lower than that of the existing system, whereas that on the direct rear side of Model 2 is 74.4%, which is the highest value. Furthermore, the corresponding value on the direct rear side of the module in Model 3 is 70.0%, which was higher than that of the existing system. Therefore, Models 2 and 3 demonstrate that the growth environment of crops could be improved using an agrophotovoltaic system.
식물의 성장과 열화상카메라로 측정된 열적 특성과의 연관성 분석
박상미(Park Sang-Mi),남다현(Nam Da-Hyun),김지형(Kim Ji-Hyung),조건영(Jo Geon-Young),김하양(Kim Ha-Yang),김정배(Kim Jeongbae) 한국태양에너지학회 2016 한국태양에너지학회 논문집 Vol.36 No.2
This study was experimentally performed to analyze the growth characteristics of a plant(wax tree or privet) using the surface temperature measured from thermal images captured using a thermal camera with water and cider. To do that, this study measured every each 12 hours the surface temperature and the stem temperature of leaves attached to the plant sample until the plants wilt on summer season in the laboratory room. From the experimental results, this study revealed that the temperature of front and back of the leaves is a little different due to the pore. The mean surface temperature of a leaf in cider is 0.52℃ higher than that of a leaf in water. The phenomena that the leaves of plants fall could be also demonstrated using the surface temperature. Before a leaf is falling from the tree, the temperature of the stem is lowered about 2℃ than those of other parts in a leaf. This result can be validated from previous result performed in University of Wisconsin.