Abstract
The variants of structural and functional schemes of biogas plants (BP) were investigated to obtain biogas and fertilizers based on the processing of solid organic waste in the agro-industrial complex (AIC). Based on the results of the study of biogas technologies, criteria are proposed for determining the best layout from the expert’s point of view. The systematization of options is given and alternatives are obtained. The method of multicriteria analysis of options based on fuzzy sets was used as a decision-making method. The use of the decision support system to select the best variant of the structural and functional scheme of the biogas plant predetermined the formation of a matrix of paired comparisons of dimension 5x5. To ensure high consistency of preferences associated with the procedure for filling in the matrices of paired comparisons of alternatives according to criteria, the method developed by us has been applied. This reduces the number of inquiries to the decision-maker. The selected structural and functional scheme meets the requirements for the development of typical automation solutions, which contributes to the replication of control systems for the same type of plants.
Highlights
IntroductionMany technological schemes of biogas plants (BP) have been developed [1]. Farmers wishing to purchase a biogas plant are faced with the need to conduct an in-depth analysis of all the technologies presented in order to determine the most economically profitable and climatically suitable solution
To date, many technological schemes of biogas plants (BP) have been developed [1]
Since the choice of a structural and functional scheme for biogas production cannot be carried out using one criterion, independently of the others, which are in significant relationships and connections with each other, it is necessary to investigate the multicriteria selection problem
Summary
Many technological schemes of biogas plants (BP) have been developed [1]. Farmers wishing to purchase a biogas plant are faced with the need to conduct an in-depth analysis of all the technologies presented in order to determine the most economically profitable and climatically suitable solution. If the layout of the biogas plant does not minimize the risks associated with the violation of the conditions for the preparation of raw materials, the heating and supply system of the substrate, the temperature regime during the fermentation process and the operation of the gasholder, these schemes are excluded from consideration as making a desperate play. The implementation of the installation is characterized by a modular design principle, the mode of operation of the bioreactor, the type of heat supply and substrate mixing system, the possibility of increasing the number of bioreactors to increase productivity. Each of these criteria includes several assessments.
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