Le présent mémoire porte sur l’étude d’extension d’un système d’irrigation par aspersion dans le cadre du projet Agrix à Toumodi, région du Bélier en Côte d’Ivoire. L’objectif de cette étude est de contribuer à l’amélioration de la production des cultures maraîchères en vue d’atteindre l’autosuffisance alimentaire. La méthodologie a consisté à faire l’état des lieux du système existant, puis à concevoir et dimensionner un nouveau système intégrant des solutions de pompage thermique et solaire. Une analyse comparative des systèmes de pompage thermique et solaire a été réalisée afin de choisir le plus avantageux, ainsi qu’une étude d’impact environnemental. Le système actuel, basé sur une pompe diesel de surface, irrigue 2 hectares, dont la source d’eau est la rivière Kan qui est un affluent du fleuve Bandama. L’aménagement qui a été conçu s’étend sur 11,2 hectares, dont une superficie nette de 10 hectares divisés en parcelles de 0,5 hectare. La dose brute d’irrigation nécessaire est de 5,24 mm par jour, avec un sol argilo-limoneux (Ksat = 3,96 mm/h). Les asperseurs utilisés ont un débit de 380 l/h, une pression de 1,5 bar, et une pluviométrie de 3,80 mm/h. L’irrigation s’effectue en 7 heures 30 minutes par jour, couvrant les besoins du périmètre avec un débit de 76 m³/h. Le système retenu repose sur une pompe photovoltaïque Lorentz, alimentée par 90 panneaux solaires monocristallins de 500 Wc, 10 batteries LiFePo4 de 25,6 V/200 Ah, et 3 onduleurs hybrides de 16 kW. Le coût global du projet est estimé à 55 993 348 FCFA TTC, avec un coût de 23 FCFA par m³ d’eau pompée.

Abstract : This thesis concerns the study of the extension of a sprinkler irrigation system within the framework of the Agrix project in Toumodi, Bélier region in Côte d'Ivoire. The objective of this study is to contribute to the improvement of market garden crop production with a view to achieving food self-sufficiency. The methodology consisted of taking stock of the existing system, then designing and sizing a new system integrating thermal and solar pumping solutions. A comparative analysis of thermal and solar pumping systems was carried out in order to choose the most advantageous, as well as an environmental impact study. The current system, based on a surface diesel pump, irrigates 2 hectares, whose water source is the Kan River, which is a tributary of the Bandama River. The development that was designed covers 11.2 hectares, including a net area of ??10 hectares divided into plots of 0.5 hectares. The gross irrigation dose required is 5.24 mm per day, with clay-silt soil (Ksat = 3.96 mm/h). The sprinklers used have a flow rate of 380 l/h, a pressure of 1.5 bar, and a rainfall of 3.80 mm/h. Irrigation is carried out in 7 hours 30 minutes per day, covering the needs of the perimeter with a flow rate of 76 m³/h. The system chosen is based on a Lorentz photovoltaic pump, powered by 90 500 Wc monocrystalline solar panels, 10 25.6 V/200 Ah LiFePo4 batteries, and 3 16 kW hybrid inverters. The overall cost of the project is estimated at 55,993,348 FCFA including tax, with a cost of 23 FCFA per m³ of water pumped. This thesis concerns the study of the extension of a sprinkler irrigation system within the framework of the Agrix project in Toumodi, Bélier region in Côte d'Ivoire. The objective of this study is to contribute to the improvement of market garden crop production with a view to achieving food self-sufficiency. The methodology consisted of taking stock of the existing system, then designing and sizing a new system integrating thermal and solar pumping solutions. A comparative analysis of thermal and solar pumping systems was carried out in order to choose the most advantageous, as well as an environmental impact study. The current system, based on a surface diesel pump, irrigates 2 hectares, whose water source is the Kan River, which is a tributary of the Bandama River. The development that was designed covers 11.2 hectares, including a net area of ??10 hectares divided into plots of 0.5 hectares. The gross irrigation dose required is 5.24 mm per day, with clay-silt soil (Ksat = 3.96 mm/h). The sprinklers used have a flow rate of 380 l/h, a pressure of 1.5 bar, and a rainfall of 3.80 mm/h. Irrigation is carried out in 7 hours 30 minutes per day, covering the needs of the perimeter with a flow rate of 76 m³/h. The system chosen is based on a Lorentz photovoltaic pump, powered by 90 500 Wc monocrystalline solar panels, 10 25.6 V/200 Ah LiFePo4 batteries, and 3 16 kW hybrid inverters. The overall cost of the project is estimated at 55,993,348 FCFA including tax, with a cost of 23 FCFA per m³ of water pumped.

Le présent mémoire porte sur l’étude d’extension d’un système d’irrigation par aspersion dans le cadre du projet Agrix à Toumodi, région du Bélier en Côte d’Ivoire. L’objectif de cette étude est de contribuer à l’amélioration de la production des cultures maraîchères en vue d’atteindre l’autosuffisance alimentaire. La méthodologie a consisté à faire l’état des lieux du système existant, puis à concevoir et dimensionner un nouveau système intégrant des solutions de pompage thermique et solaire. Une analyse comparative des systèmes de pompage thermique et solaire a été réalisée afin de choisir le plus avantageux, ainsi qu’une étude d’impact environnemental. Le système actuel, basé sur une pompe diesel de surface, irrigue 2 hectares, dont la source d’eau est la rivière Kan qui est un affluent du fleuve Bandama. L’aménagement qui a été conçu s’étend sur 11,2 hectares, dont une superficie nette de 10 hectares divisés en parcelles de 0,5 hectare. La dose brute d’irrigation nécessaire est de 5,24 mm par jour, avec un sol argilo-limoneux (Ksat = 3,96 mm/h). Les asperseurs utilisés ont un débit de 380 l/h, une pression de 1,5 bar, et une pluviométrie de 3,80 mm/h. L’irrigation s’effectue en 7 heures 30 minutes par jour, couvrant les besoins du périmètre avec un débit de 76 m³/h. Le système retenu repose sur une pompe photovoltaïque Lorentz, alimentée par 90 panneaux solaires monocristallins de 500 Wc, 10 batteries LiFePo4 de 25,6 V/200 Ah, et 3 onduleurs hybrides de 16 kW. Le coût global du projet est estimé à 55 993 348 FCFA TTC, avec un coût de 23 FCFA par m³ d’eau pompée.

Abstract : This thesis concerns the study of the extension of a sprinkler irrigation system within the framework of the Agrix project in Toumodi, Bélier region in Côte d'Ivoire. The objective of this study is to contribute to the improvement of market garden crop production with a view to achieving food self-sufficiency. The methodology consisted of taking stock of the existing system, then designing and sizing a new system integrating thermal and solar pumping solutions. A comparative analysis of thermal and solar pumping systems was carried out in order to choose the most advantageous, as well as an environmental impact study. The current system, based on a surface diesel pump, irrigates 2 hectares, whose water source is the Kan River, which is a tributary of the Bandama River. The development that was designed covers 11.2 hectares, including a net area of ??10 hectares divided into plots of 0.5 hectares. The gross irrigation dose required is 5.24 mm per day, with clay-silt soil (Ksat = 3.96 mm/h). The sprinklers used have a flow rate of 380 l/h, a pressure of 1.5 bar, and a rainfall of 3.80 mm/h. Irrigation is carried out in 7 hours 30 minutes per day, covering the needs of the perimeter with a flow rate of 76 m³/h. The system chosen is based on a Lorentz photovoltaic pump, powered by 90 500 Wc monocrystalline solar panels, 10 25.6 V/200 Ah LiFePo4 batteries, and 3 16 kW hybrid inverters. The overall cost of the project is estimated at 55,993,348 FCFA including tax, with a cost of 23 FCFA per m³ of water pumped. This thesis concerns the study of the extension of a sprinkler irrigation system within the framework of the Agrix project in Toumodi, Bélier region in Côte d'Ivoire. The objective of this study is to contribute to the improvement of market garden crop production with a view to achieving food self-sufficiency. The methodology consisted of taking stock of the existing system, then designing and sizing a new system integrating thermal and solar pumping solutions. A comparative analysis of thermal and solar pumping systems was carried out in order to choose the most advantageous, as well as an environmental impact study. The current system, based on a surface diesel pump, irrigates 2 hectares, whose water source is the Kan River, which is a tributary of the Bandama River. The development that was designed covers 11.2 hectares, including a net area of ??10 hectares divided into plots of 0.5 hectares. The gross irrigation dose required is 5.24 mm per day, with clay-silt soil (Ksat = 3.96 mm/h). The sprinklers used have a flow rate of 380 l/h, a pressure of 1.5 bar, and a rainfall of 3.80 mm/h. Irrigation is carried out in 7 hours 30 minutes per day, covering the needs of the perimeter with a flow rate of 76 m³/h. The system chosen is based on a Lorentz photovoltaic pump, powered by 90 500 Wc monocrystalline solar panels, 10 25.6 V/200 Ah LiFePo4 batteries, and 3 16 kW hybrid inverters. The overall cost of the project is estimated at 55,993,348 FCFA including tax, with a cost of 23 FCFA per m³ of water pumped.