کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5446628 1511143 2016 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Understanding the Movement of Cracked Solar Cell Parts in PV-modules During Mechanical Loading
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
پیش نمایش صفحه اول مقاله
Understanding the Movement of Cracked Solar Cell Parts in PV-modules During Mechanical Loading
چکیده انگلیسی
We measure the three dimensional movement of cracked solar cell parts in standard sized PV-modules during a four line bending test. We develop a model which explains this movement assuming that the centers of mass of the solar cells or cell parts are fixed to the module glass. The widening of all cell gap widths is proportional to the bending roll displacement until a cell cracks in parallel to the bending rolls due to the tensile stress in the cells. At this point, the crack opens abruptly while the two parallel cell gaps next to the cracked cell close simultaneously by the same distance in sum. From here on, the cell gaps and the cell crack increases proportionally to the bending roll displacement. Since the distance between the centers of mass of both cracked cell parts is independent of the crack position, the crack width is also independent of the crack position for single cracks. Multiple parallel cracks in solar cells have smaller crack widths according to this model. Laminates without a backsheet show about 30% larger crack widths.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy Procedia - Volume 92, August 2016, Pages 554-559
نویسندگان
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