Experimental Investigation of Temperature and Condensation Control of Photovoltaic Panels

Determination of the optimum power point in photovoltaic panels using the Liu &Jordan model considering fuzzy variables

“…The methodology starts with the amount of irradiance that affects the photovoltaic arrangement in which equations ( 12) and ( 3) are joined to obtain an effective irradiance value in which the accumulation of dust or dirt is related, leaving the following equation (13) Once these irradiance values have been obtained, the temperature of the site is fundamental for determining the maximum power of electricity generation, this will vary in terms of the amount of solar radiation and temperature of the panel [27] for the above, it is necessary to use the following equations where, with the help of the panel technical sheet [19] and site conditions, the maximum power point is determined according to the climatic conditions at our study point. For the calculation of Voc it is necessary to calculate the thermal voltage that is given by the following equation: (17) Where: n = Diode factor k = Boltzmann constant 1.38066E-23 (J / K) q = Elemental charge 1.60218E-19…”

“…Additionally, a natural effect of great importance based on the climatology of the place to be studied is dew, which is nothing more than the humidity of the atmosphere that condenses at night and early morning, causing small drops of water to be generated that settle on the panel. This climatic phenomenon can be unfavourable in desert conditions where when it joins the dust, it turns it into the mud, dirtying the panel even more [16], this does not happen in the urban environment (case study) where when it condenses, it will serve to clean the dirt deposited on the panel [15] [17].…”