Scientific Journal of KubSAU

The article shows that the quality of students depends on the qualifications of the teaching staff, which has a direct correlation with the results of research work

Perspectives of science in high schools were always defined by prospects of development of scientific teams. The author proposes to divide (depending on the contents of research targets) unities of the research process and the results of research teams of the Department into three categories: a scientific group, a scientific school and a leading scientific school. Research teams are characterized by not only quantitative and qualitative composition, but the annual results. We reveal functional duties of leaders of research teams and the head of the Department for their effective management. One of the main tasks of the Department is to create conditions for the disclosure of scientific and creative abilities of students. The article describes general concepts and the content of scientific researches, including the formulation of themes, goals and objectives of the research, as well as the basics of research methodologies required for students in conducting the research work. The structure of research groups of the Department, the content of their work, the main functional responsibilities of heads of scientific disciplines and the head of the Department, basics of scientific research methodology discussed in the article, will increase the organization's effectiveness and the efficiency of R & D Department

The article reveals the advantages of low energy in comparison with other renewable energy sources. It is shown that broad prospects are visible for small (100 - 1000 kW) and micro hydropower plants (up to 100 kW) when used in the foothill and mountain areas. At the same time, the construction of hydropower plants of sleeve-type has improved the operational and technical characteristics, among other types of small-scale power plants. The article presents main analytical expressions for calculating hydroelectric power generator and it has built graphic dependences for the power generator of pressure and water flow. To improve the performance of small hydroelectric power plants we have proposed using unregulated water turbine and non-contact induction generator in their construction, thus, we could stabilize voltage and frequency directly by the frequency converter. Depending on the requirements of consumers to power supply reliability and electricity quality, we have offered several options for structural and circuit solutions of autonomous systems of electrosupply, made using small hydroelectric power plants. Thus, we can greatly enhance the efficiency of such systems if they are used with other types of renewable sources, such as windfarms or solar power plants

The article deals with one of the promising areas belonging to energy-saving technologies; it is the introduction of biogasoline stations into agricultural production. The analysis of the application in the world has been shown. To determine the cost-effectiveness of biogasoline stations we have shown the data for the calculation of the potential of biomass: organic waste settlements; animal waste; waste of poultry; crop residues; waste processing industry. We have obtained graphic dependences of electricity generated in the day from livestock and poultry, as well as the number of sunflower, rice, and sugar beets. The table also shows the thermal properties of organic agricultural wastes, allowing increasing the efficiency of calculations to determine the biomass resources. We have considered the schemes of biogasoline stations, a gas turbine power plant and a steam turbine power plant and disclosed the features of their work. To improve the operating and technical specifications of the stations intended for power generation we have proposed using non-contact generators and stabilization of parameters of electric power in their designs to carry out direct frequency converter. We have disclosed the advantages and disadvantages of biogas, as well as the direction of its effective use. It is shown that the use of all the possibilities in the complex of biogasoline stationns (production of fertilizers and motor oil, production of heat and electricity) would improve the efficiency and the payback of investment would be from 3 to 5 years, which is mainly determined by the volumes of biomass

Currently operating in autonomous systems of power supply DC voltages power sources are secondary sources for operation devices, protection and control of generators, motors, stabilizers and inverters have relatively low operational performance. The work proposes to improve the weight and the size of power supplies to apply a high frequency link in their designs. We provide structural designs and the peculiarities of operation of secondary power sources with a high frequency link. This article discusses the fundamental electrical circuits of pulse regulators, converters based on resonant inverters and transformers with rotating magnetic field. The use of resonant inverters in power sources will significantly improve their weight and overall dimensions. In addition, the use of secondary sources of supply for transformers with rotating magnetic field will simplify their design and reduce the level of electromagnetic interference generated by semiconductor devices. The features of operation of pulsed regulators and prospective structuralschematics converters discussed in the article, performed on resonant inverters and transformers with rotating magnetic field, will increase the effectiveness of pre-work on the development of secondary power sources with improved operational and technical characteristics for devices of operating, control and protection

The article describes the main organizational and functional activities aimed at development of the department on the main types of its activities, as well as the modern requirements to the head of department

The article reveals the experience of the introduction of innovative approaches to management of the main activities the department of aimed at improving the efficiency of the teaching staff and the quality of training of students

The article describes the methods of synthesis of optimal structural schematics of autonomous power supply systems, made using renewable energy sources, for several performance criteria

This article presents the methods for estimating the quality of individual training of students, clusters and classes, as well as the effectiveness of the training activity of academic teaching staff

In the article we consider the technique of evaluating the performance of the faculty and the department for educational, methodical, scientific research and the development of material and technical base