Impact of humidity on current parameters of solar cells

Year 2018, Volume: 2 Issue: 3, 84 - 96, 30.09.2018

Erdem Cuce , Pinar Mert Cuce , Tulin Bali

https://doi.org/10.30521/jes.441643

Cited By: 4

Abstract

In
this research, impacts of relative humidity on current parameters of solar
cells are investigated. An experimental methodology is considered in the
research. Outdoor tests are carried out for two different cell technologies,
monocrystalline (m-Si) and polycrystalline silicon solar cell (p-Si), under
various humidity conditions. Current-voltage (I-V) and power-voltage (P-V)
characteristics are achieved simultaneously for each sample, and the
relationship between the short circuit current (Isc) and relative
humidity is discussed. During the tests, cell temperature of m-Si and p-Si
sample is measured to be in the range of 22.9-36.1 and 21.2-38.9 oC,
respectively. It is unequivocally reported in literature that current
parameters are not noticeably affected by the rise in cell temperature up to 20
oC. Therefore, any deviation from the linearity between solar
intensity level (G) and Isc is attributed to the impact of relative
humidity. The tests repeated for low and moderate solar intensity levels
(257-482 W/m2) reveal that the linear relationship between G and Isc
is maintained for different humidity levels. In  this respect, the impact of humidity level on
current parameters of solar cells is found to be insignificant

Keywords

Solar cells, Parameter extraction, Solar intensity, Relative humidity, Short circuit current

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