Measuring Method of Moisture Ingress into Photovoltaic Modules

被引：13
|
作者：
Miyashita, Masanori [1 ,2 ]
Kawai, Shinji [3 ]
Masuda, Atsushi [3 ]
机构：
[1] Photovolta Power Generat Technol Res Assoc PVTEC, Chiyoda Ku, Tokyo 1020074, Japan
[2] Toray Industries Ltd, Seta Plant, Otsu, Shiga 5202141, Japan
[3] Natl Inst Adv Ind Sci & Technol, Tosu, Saga 8410052, Japan
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS | 2012年 / 51卷 / 10期
关键词：
PERFORMANCE; STABILITY; SENSOR; TESTS; WATER;
D O I：
10.1143/JJAP.51.10NF12
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The reliability of photovoltaic (PV) modules is related to the ingress of moisture in some cases. We investigated the measurement method of moisture ingress into PV modules. In order to detect the moisture ingress route into the module, cobalt chloride (CoCl2) paper was used. The change in the color of CoCl2 paper is effective in detecting and quantifying moisture ingress. The results suggested that the main route of moisture ingress is along the back material and moisture gradually diffuses to the center of the cell. The rate of moisture ingress into the PV module depends on the water-vapor transmission rate (WVTR) of the back material. The amount of moisture estimated from a calibration curve is correlated to the amount of moisture calculated from the WVTR of the back material. (C) 2012 The Japan Society of Applied Physics
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页数：4
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