Experimental analysis of solar intensity on photovoltaic in hot and humid weather conditions [ READ ]
Miqdam T Chaichan, Hussein A Kazem
Photovoltaic (PV) technology becomes worldwide spread and always improves its output and costs. However, as these PV modules are exposed to outdoor conditions, it is highly influenced by weather parameters. The recent study was conducted to evaluate the effect of solar radiation on the PV module in hot and humid weather in Sohar-Oman. Two PV modules connected in series were used to assess the impact of the local wind in this area. The results indicated that the wind effect was insignificant on the modules temperature for the tested period. Most of the study results were similar to the findings of many researchers concerning voltage drop with increasing temperature, and high current value, and a significant reduction of the power due to the rise in air temperature. However, in this study, we used the concept of solar air temperature and studied its effect on the panels' temperature. The results reveal that solar air temperature worked as heating source starting from 8 AM till about 5 PM in winter and 7 PM in summer, and as a cooling source after the mentioned times. The high relative humidity distinguishing the tested area Sohar caused a reduction in the solar radiation intensity which reflected in lower solar air temperature.
Miqdam T Chaichan, Hussein A Kazem
Photovoltaic (PV) technology becomes worldwide spread and always improves its output and costs. However, as these PV modules are exposed to outdoor conditions, it is highly influenced by weather parameters. The recent study was conducted to evaluate the effect of solar radiation on the PV module in hot and humid weather in Sohar-Oman. Two PV modules connected in series were used to assess the impact of the local wind in this area. The results indicated that the wind effect was insignificant on the modules temperature for the tested period. Most of the study results were similar to the findings of many researchers concerning voltage drop with increasing temperature, and high current value, and a significant reduction of the power due to the rise in air temperature. However, in this study, we used the concept of solar air temperature and studied its effect on the panels' temperature. The results reveal that solar air temperature worked as heating source starting from 8 AM till about 5 PM in winter and 7 PM in summer, and as a cooling source after the mentioned times. The high relative humidity distinguishing the tested area Sohar caused a reduction in the solar radiation intensity which reflected in lower solar air temperature.
