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2022 Vol.64, Issue 2
Simulation of Solar Irradiance Distribution Under Agrivoltaic Facilities

영농형 태양광 발전 시설 하부의 일사량 분포 모의

Young-Joon Jeonga
,
Sang-Ik Leeb
,
Jong-Hyuk Leec
,
Byung-Hun Seoa
,
Dong-Su Kima
,
Jimin Leed
,
Won Choie†
정 영준a
,
이 상익b
,
이 종혁c
,
서 병훈a
,
김 동수a
,
이 지민d
,
최 원e†
aMS Student, Department of Rural Systems Engineering, Global Smart Farm Convergence Major, Seoul National University
bPh.D. Student, Department of Rural Systems Engineering, Seoul National University
cPh.D. Student, Department of Rural Systems Engineering, Global Smart Farm Convergence Major, Seoul National University
dResearch Professor, Research Institute of Agriculture and Life Sciences, Seoul National University
eAssociate Professor, Department of Landscape Architecture and Rural Systems Engineering, Research Institute of Agriculture and Life Sciences, Global Smart Farm Convergence Major, College of Agriculture and Life Sciences, Seoul National University
a서울대학교 글로벌스마트팜융합전공 농촌시스템공학과 MS학생
b서울대학교 농촌시스템공학과 박사과정 학생
c서울대 글로벌스마트팜융합전공 농촌시스템공학과 박사과정 학생
d서울대 농업생명과학연구소 연구교수
e서울대 농생명과학대학 농업생명과학연구소 조경시스템공학과 교수
† Corresponding author Tel.: +82-2-880-4715, Fax: +82-2-873-2087 E-mail: fembem@snu.ac.kr
2022. pp. 1-13
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Abstract

Agrivoltaic facility is the composite system that the solar panel is installed above the farmland, and it enables crop and electricity production simultaneously. Solar panels of the agrivoltaic facilities can block and reduce the amount of solar irradiance arriving at the farmland, but it can help the crop growth by preventing excessive solar irradiance. Therefore, to clarify how the agrivoltaic facilities affect the crop growth, precise solar irradiance distribution under the solar panel should be modeled. In this study, PAR (photosynthetically active radiation), radiation from 400 to 700 nm, which crops usually use to grow, was extracted from the total irradiance and its distribution model under various conditions was developed. Monthly irradiance distributions varied because the elevation of the sun was changed over time, which made the position changed that the local maximum and minimum irradiance appear. The higher panel height did not cause any significant difference in the amount of irradiance reaching below the solar panel, but its distribution became more uniform. Furthermore, the panel angles with the most irradiance arriving below the solar panel were different by month, but its difference was up to 2%p between the irradiance with 30° angle which is usually recommended in Korea. Finally, the interval between panels was adjusted; when the ratio of the length of the panel to the empty space was 1:2, the irradiance of 0.719 times was reached compared to when there was no panel, 0.579 times for 1:1 and 0.442 times for 2:1.

Keywords
Agrivoltaic facility
solar irradiance
photosynthetically active radiation
simulation model
irradiance distribution
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Information
  • Publisher :The Korean Society of Agricultural Engineers
  • Publisher(Ko) :한국농공학회
  • Journal Title :Journal of Korean Society of Agricultural Engineers
  • Journal Title(Ko) :한국농공학회논문집
  • Volume : 64
  • No :2
  • Pages :1-13
  • Received Date : 2021-09-24
  • Revised Date : 2021-09-28
  • Accepted Date : 2021-10-18
  • DOI :https://doi.org/10.5389/KSAE.2022.64.2.001
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