อิทธิพลของการจัดเรียงแถวของแผงโซลาร์เซลล์ที่มีต่อสัมประสิทธิ์แรงลม

จิรวัฒน์ จันทร์เรือง; วิโรจน์ บุญญภิญโญ

Authors

จิรวัฒน์ จันทร์เรือง อาจารย์, คณะวิศวกรรมศาสตร์และสถาปัตยกรรมศาสตร์ มหาวิทยาลัยเทคโนโลยีราชมงคลตะวันออก วิทยาเขตอุเทนถวาย, 225 ถ.พญาไท แขวงปทุมวัน เขตปทุมวัน กทม. 10330
วิโรจน์ บุญญภิญโญ อาจารย์, คณะวิศวกรรมศาสตร์ มหาวิทยาลัยธรรมศาสตร์, เลขที่ 99 หมู่ 18 ถ. พหลโยธิน ต. คลองหนึ่ง อ. คลองหลวง จ. ปทุมธานี 12120

Keywords:

wind tunnel test, solar panels, aerostatic coefficients, computational fluid dynamic

Abstract

This study utilizes wind tunnel testing and 2D steady-state Computational Fluid Dynamics (CFD) employing the k-w SST turbulence model to evaluate the wind force coefficients acting on ground-mounted solar panels in single and row configurations situated in open terrain. Results indicate that single panels exhibit maximum normal force at a 40^o tilt, slightly to moderately exceeding JIS C 8955 standards between 15^o and 40^o. In contrast, row configurations show significantly lower coefficients due to the shielding effect, particularly on inner panels where flow separation is reduced. Additionally, the CFD analysis revealed a 5–17% discrepancy compared to the wind tunnel test results. This deviation is attributed to the inherent limitations of 2D steady-state simulations, which cannot fully replicate complex 3D flow separation behaviors. These findings provide critical insights for optimizing the structural safety and efficiency of solar array designs against wind loads.

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