International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

Under the conditions of climate change, the provision of clean drinking water for population and irrigation water for crops has become one of the main problems in the world. With population growth and development of economic sectors, water resources deficit in the Republic of Uzbekistan and Central Asian countries is increasing from year to year. With population growth and development of economic sectors, water resources deficit in the Republic of Uzbekistan and in Central Asian countries increases from year to year. The solution of water deficit problem lies in water saving and rational water use. The main objective of scientific research is application of water and energy saving technologies in fruit orchards located in mountainous and foothill zones and in different soil-reclamation conditions of the Republic of Uzbekistan (Republic of Karakalpakstan, Bukhara, Kashkadarya, Namangan, Surkhandarya and Khorezm provinces), where water and electricity deficit is strongly felt. As a result, water saving in fruit orchards in comparison with traditional irrigation amounted to 67.4 % in the Republic of Karakalpakstan, 76.1 % in Bukhara province, and on average in the republic the saving reached 60÷80 %. In order to reduce the human factor in garden irrigation, all processes were automated. A mobile solar system with a capacity of N=4.0÷4.2 kWh (8 photovol-taic solar panels with a capacity of 500 W each) was manufactured to provide energy to the pumping unit supplying water to the drip irriga-tion system. Also, a system of cooling of solar panels was developed to increase the efficiency factor at high temperatures (t = 40÷500 C).