DefinePK

Abstract

The design of a photovoltaic generator is generally obtained from the energy characteristics of the solar collector and from the daily light energy that falls on its surface. The optimization of this design depends essentially on the daily sunshine rate, the size of the photovoltaic generator and the energy behavior of the associated load. This article proposes an optimization of the performances of a photovoltaic generator through a concrete evaluation of the capacity electrochemical battery to install for the supply of a 150-liter DC refrigerator. In an experimental study, we characterized the solar energy potential of the city of Abidjan (Côte d'Ivoire-West Africa) and evaluated the energy performance of a photovoltaic generator (250 Wp/100 Ah) linked to a mechanical compression refrigerator. The results showed a mean daily irradiation between 3.5 and 5 Kwh/m2 for 6.5 hours of average insolation per day and a maximum photovoltaic energy production of 48 Ah/d of the solar panel. We obtained a maximum daily consumption of 30 Ah over a cumulative period of 12 hours of operation of the motor-compressor. The balance between production and consumption has confirmed a surplus of energy generated by the solar panel that can reach 45 Ah in front of an energy demand of the motor-compressor between 4 and 8 Ah, during the period of insolation. This experimental approach allows for an improved planning of the capacity electrochemical battery to install in photovoltaic solar refrigerators.