Humidity characterization and control in planar micro-tracking CPV modules

To better understand the process of condensation formation in CPV modules, an experimental setup containing two Insolight mockup modules has been prepared to firstly, monitor relevant variables involved internal dew point, namely relative humidity and air temperature, differential atmospheric pressure between module environment temperatures front rear parts secondly, be able modify exchange conditions with environment. After spending wet season Madrid (four months during winter), correlated monitored point most time it disappears after a few hours. Considering that sealing would increase failure due thermal expansion, are always equalized through breather. Hence, some preliminary mitigating actions have studied such as addition desiccant different venting configurations seek reduce amount content therefore help prevent point.