Keyword: «extremely low temperatures»

The article is devoted to the use of ultrasonic vibrations for solving physical and technical problems under conditions of extremely low temperatures. Three areas of research are proposed for the energy efficient use of ultrasound in order to solve these problems, namely: control of the properties and type of the medium during exposure; identification of optimal regimes and conditions of influence on the basis of process modeling; development of criteria for the optimality of influencing modes for the practical implementation of the impact with maximum energy efficiency.

The article is devoted to the study of the features of the operation of a photovoltaic installation at low temperatures in the North-Eastern part of Russia. The introduction of solar power facilities in hybrid opera-tion with facilities of traditional energy sources in the territory of the North-Eastern part of Russia is one of the possible solutions to achieve costly fuel savings in power generation facilities. The electric power regularities and methods of processing experimental data in the MatLab environment are applied and the stages of field research in the field of solar energy are described. The indicators of the influence of extremely low ambient temperatures on the operating parameters of a photovoltaic installation have been obtained.