Abstract
One of the promising areas of processing poultry and livestock waste is anaerobic digestion, which helps to prevent pollution of the natural environment, as well as to receive processing products such as gaseous fuel, biogas and highly effective biofertilizer. The use of plants for the production of biological gas as alternative sources of energy is largely determined by its design characteristics and the worked out technological regimes. The study was conducted with the aim of obtaining data on the effect of the main parameters of the biogas plant and the heat exchanger-agitator on the quality of its operation. This paper considers the thermal processes taking place in the biogas plant in which the mixing device and the heating element are combined into one unit, which allows heating and maintaining the given temperature regime more evenly due to the rotation of the heat exchanger and the transfer of biomass heat throughout the whole volume of the methane. As a result of theoretical studies of the processes of heat exchange and heat transfer taking place in the biogas plant, a mathematical model has been obtained that allows determining the distribution of the temperature of the biomass throughout the entire volume of the methane. It is established that the theoretical temperature homogeneity of the stirred medium is achieved by combining the heat exchanger and the mixing device into one unit, the design and technological parameters of which characterize the intensity of the forced motion of fermentable manure, while changing the value of thermal conductivity.
Highlights
One of the most acute problems of the development of both the farming industry and the entire agro-industrial complex is the problem of its effective energy supply
To intensify the process of fermentation and optimize the design and energy parameters of the methane tank, we suggest combining the agitator and the heating element into one unit, that is, the stirring device is simultaneously a heating element [7]. This combination allows heating and maintaining the given temperature regime more evenly due to the rotation of the heat exchanger and the transfer of heat to the biomass throughout the whole onsite sewage facility, since the homogeneity of the temperature in the moving medium is directly related to the phenomena occurring in the thermal boundary layer, in contrast to all existing heat exchangers that allow heating only limited areas, which leads to uneven heating [8]
Let’s consider the thermal processes taking place in the biogas plant.The heat required for the installation in thermophilic mode, after it is put into operation, is determined by the heat loss of the installation itself
Summary
In this regard, the relevance of research on improving the efficiency of the use of non-traditional energy sources for farms has increased significantly. The relevance of research on improving the efficiency of the use of non-traditional energy sources for farms has increased significantly The use of such unconventional sources as the energy received from biotechnology can be considered among the most acceptable directions [3]. One of the promising areas for the processing of poultry and livestock waste is anaerobic digestion, which helps to prevent pollution of the environment, and to receive processed products such as gaseous fuels, biogas and highly effective biofertilizers [4]
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