Abstract
The issues of calculating the power of thermal energy consumed for heating biomass in the reactor of a bioenergy plant are considered. Based on the Fourier heat equation, a solution for the axisymmetric cylindrical problem under boundary conditions of the first kind is obtained, and the power of additional heat sources in a cylindrical biogas reactor is calculated. The influence of the height of the bioreactor and the temperature difference of the biomass on the power consumption of an additional source of thermal energy is analyzed
Highlights
When analyzing the heat transfer processes in a bioreactor, it is very important to choose the power of additional heat sources, which ensures a uniform and continuous flow of the fermentation process
This work aims to develop a method for calculating the power of additional sources of thermal energy based on the Fourier equation of thermal conductivity
The physical design model of a biogas reactor can be represented by a cylinder of radius R and height H, and to calculate the temperature; we can assume an axisymmetric distribution of the temperature field, when the temperature inside the reactor depends only on the coordinate R, i.e., consider a one-dimensional problem
Summary
The depletion of natural energy resources(oil, natural gas, coal) is currently acute The extraction of these resources is associated with a high financial cost, the consequence of which is the high price of organic fuel. Another problem associated with the use of traditional energy carriers is environmental (the release of oxides and harmful substances). The most acceptable starting material is waste from animal husbandry, poultry farming, waste from agricultural products and waste from agricultural land, etc. The fermentation makes it possible to produce gaseous fuel (biogas). From the perspective of energy-saving and ecology, the efficient processing of organic waste into biogas is an urgent scientific and technical task [5 - 8]
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