Scientific Journal of KubSAU

The article reviews the results of an experimental research of a small bioreactor with bubble mixing system and catalytic heating. The methods improving the efficiency of biogas plants are considered there

The article describes the characteristics of the organization of energy supply of the territorial agricultural and silvicultural bioenergy sector. It also presents the technical solutions of energy systems that improve fuel efficiency and intended for the utilization of biomass

The article suggests a way to improve the efficiency of the operation of catalytic systems. The new circuit-design solutions of catalytic systems for the processes of producing biogas from organic waste are proposed. They are based on the analysis of existent tech. solu-tions

The purpose of this research is to receive mathematical model of natural drying of the whole trees in bunches in a cutting area based on experimental data. The field research of natural drying from March to October 2015 of the whole trees of pine and birch of different diameter laid definitely in bunches in a cutting area was conducted for this purpose. The mathematical model describing change of moisture content in wood in the course of natural drying in bunches in a cutting area was as a result developed. The received equation of regression defines dependence of average humidity of wood in a bunch from diameter of wood, quantity of a liquid atmospheric precipitation, relative humidity and temperature of air, average speed of the movement of the air blowing in bunch of trees, duration of natural drying. The developed mathematical model allows predicting change of moisture content of wood in the course of natural drying with a margin error less than 5%. Humidity of wood in the course of natural drying from March to October was on average reduced from 52% to 27%. Besides, in article the technology of logging of fuel wood on an energy forest is offered. The technology of stacking of trees in bunches at logging of the fuel wood which is grown up in forest plantations is offered. The results of the research can be used for increase of production efficiency of fuel wood

The article describes the characteristics of the modeling of energy supply of territorial agricultural and silvicultural bio-energy sector. It also presents the principles of modeling and description of the model of the generation process

The scheme of the energetic balance of the autonomous energy supply system of mobile technological lines that produces dry fire wood chips on the basis of the engine installation with the Stirling engine, using a part producible biogenic fuel, is produced; the mathematical model of the functioning of the present energy supply system of mobile technological line is elaborated

The new circuit-design solutions of catalytic systems for the processes of producing biogas from organic waste are proposed. They are based on the analysis of existent tech. solutions. The interaction features of the flow of reactants to the catalytic filler in the proposed catalytic systems allow us to intensify the process of reaction, as well as to optimize the design features of catalytic systems based on the technological process

The article assesses the energy efficiency of the technical and technological systems based on catalytic combustion systems nutrient liquid and gaseous fuels for heating various production facilities and agro-forestry systems

The article presents the modernization option of the forest residue furnace that allows speeding up the drying process by boosting it. The dependencies, reflecting the influence of the temperature of the drying process on the heat losses of the furnace and the effect of the load and the moisture content of the feedstock to the fuel consumption for the entire drying process, are presented in the article

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