Abstract

Today, the importance of energy cost and efficiency is gradually increase. The decrease in drinking water and agricultural water resources, increases the interest in drip irrigation systems in agricultural irrigation. Environmentally friendly photovoltaic drip irrigation systems (PVDIS) are the appropriate solution in regions where there is no electricity distribution network, where it is far away, or where power cuts are frequently. This study is carried out in the Fergana Valley of Uzbekistan. Regional climate data obtained from Climwat 2.0 software are processed in Cropwat 8.0 software. Crops that are both the source of livelihood of the people of the region and that can be used in this study have been determined. Annual and daily water needs are analyzed so that these crops are irrigated every seven days. A system is designed by taking the data of the crop with the highest water requirement as a reference. The drip irrigation system is set up in a PVsyst 7.1.7 simulation environment to pump 114.24 m3 of water daily from a 5-meter-deep river with a 1.8 kW photovoltaic system. The efficiency of the system is 58.7% and the efficiency of the pump is 34.5%. Crop water need is met at the rate of 98.87%. It is predicted that the designed and analyzed PVDIS will provide efficiency in energy and water resources.

Highlights

  • Water is the basic food source for all living things on earth

  • All countries of the world are turning to new strategies to meet their energy needs. This makes it necessary to investigate the use of renewable energy sources [7,8,9]

  • Solar irrigation systems have less negative impact on the environment compared to non-renewable energy sources

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Summary

Introduction

Water is the basic food source for all living things on earth. Two-thirds of our world and our bodies are made up of water. All countries of the world are turning to new strategies to meet their energy needs This makes it necessary to investigate the use of renewable energy sources [7,8,9]. The use of solar energy in agricultural irrigation reduces the total production costs. Solar irrigation systems have less negative impact on the environment compared to non-renewable energy sources. The size, life cycle, and cost of a system that can pump an average of 60 m3 of water per day in Algeria have been analyzed It has been evaluated economically [12]. The system has a daily pumping capacity of 114.24 m3 from the water source, whose depth is estimated to be 5 meters The design of this system has been done in a simulation environment

Land Parameters
Irrigation System Components and Simulation Environment
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