Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Titre : A STUDY ON PESTICIDE SPRAYER POWERED BY SOLAR ENERGY APPROPRIATE FOR SMALL FARMS IN THE NEW VALLEY

Auteur : ABD-ELRAHMAN, AHMED MESBAH ELSAYED.

Etablissement de soutenance : Ain Shams University

Grade : Master of Science in Agricultural Engineering Sciences 2022

Résumé partiel
This study was conducted on adapting the use of a small electric pesticide sprayer through the use of a solar energy system by an electric motor that draws its energy from a dry battery 12 volts with a capacity of 8 amps per hour and is charged through a solar energy system separate from the machine, which consists of a solar panel with photovoltaic cells Which is made of semiconductors and produces 20 watts and a charging regulator. The solar panel is installed on a metal holder and its pump draws the liquid from the tank and pumps it to the nozzle holder. Since the use of pesticides and other chemicals in agricultural applications are important element in maximizing production in the agricultural sector, a solar-powered pesticide sprayer has been developed and improved to achieve the following goals : 1- Reducing dependence on traditional energy, such as fossil fuels used to operate spraying machines, to counter the shortage and high cost of fuel. 2- Save time and reduce operating costs for field spraying operations compared with another types sprayers at the same capacity. 3- Reducing the negative impact on the environment and the pollution rates resulting from the use of traditional sources of energy generation. 4- Achieving uniformity and homogeneity of the number of droplets deposited on experimental tests conducted on conjunction with the operation of the pesticide spraying machine included two tests : • The first test : the laboratory experiment that determine the number of precipitated droplets and their coverage percentage of the square area of the target and related to three different levels of speed of the DC electric motor, which derives its power from a battery. • The second test is a field experiment procedure to evaluate the full battery charging time and the discharging time at different motor speeds related to energy consumption and field performance rate. Experiments were conducted and the components of the system were tested on a small farm in the Farafra Oasis in the Western Desert in the New Valley Governorate during the period 2020/2021 to operate a solar knapsack sprayer that draws energy directly from a solar photovoltaic generator. Therefore, the research includes conducting laboratory and field experiments to highlight and evaluate the results in this research on Study

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