Scientific Journal of KubSAU

The article presents the description of the method and the results of the experimental research of loading of driving mechanism of felling head of a forest machine

The results of numerical experiments on the simulation of mathematical models of the functioning of the technical and technological systems for heating livestock complex have been presented in the article. The equations that establish a quantitative relationship between process parameters and the parameters of the efficiency of the heating system have been shown

The article describes the common operation principles of catalytic systems within animal production unit, for improving the design solutions and the description of catalytic systems developed by the authors for production and conversion of energy for the anaerobic recycling of organic waste

The article presents the results of a simulation of functioning machines for tillage in AutoCAD Mechanical environment, the algorithm of machine work and the results of numerical experiments on the developed model

The article describes the details of modeling of catalytic systems for the production and conversion of energy in anaerobic digestion of organic manure. We have also presented a simulation mathematical model that establishes the relationship between structural and technological parameters of catalytic systems and the parameters characterizing the efficiency of the catalytic system in the production and conversion of thermal energy in the anaerobic treatment of organic manure

The article presents a simulation mathematical model of technical and technological systems for heating livestock complex, which establishes the relationship between the structural and technological parameters of the technical and technological system and the parameters characterizing the efficiency of their operation in the process of heat transfer at the heat supply of the livestock sector

The article describes the simulation model of the processes of growing and harvesting of forest biomass for energy. It presents the approaches and features of the grows modeling and harvesting processes

We have presented technical solutions of an energy supplying complex of apiary based on a solar plant, which ensure its functioning in the winter. Various aspects of the influence of the snow cover on the functioning of the complex are considered in the article. The favorable effect of the snow cover includes increasing the diffuse insolation, improving the thermal insulation of the building for placement of bees, which protects bee families from fluctuating external temperature. The negative effect of the snow cover includes adherence of snow to the receiving surfaces of solar energy converters, which can lead to decreasing the efficiency of using of photovoltaic modules and solar collectors. Both active and passive methods of combating snow sticking are suggested in article. Passive methods include installation of solar energy converters at an angle close to 90°, as well as their placement on the windward side. The simulation of the functioning of the complex based on a solar plant was conducted for climatic conditions of the Republic of Mari El (the time interval – from 14 October to 14 April, a photovoltaic module area – 1,3 m 2 with installation angles of 72˚ and 88˚). Because of the simulation, we obtained graphs of the changing the power of the photovoltaic module. Active methods include air injection onto the receiving surfaces of solar energy converters and using of heating elements

The article provides a description of existing catalytic burning units, the rationale for improving the technical solutions of components and parts, and the catalytic burning unit proposed by the authors with a circulating bed of filler

The article reviews the results of the computational experiment by means of mathematic model of a small bioreactor with the bubble mixing system and catalytic heating. We considered the quantitative relationship between design parameters of a bioreactor and parameters of its effectiveness