ABSTRACT
Formalization and hierarchical classification of quantity and quality factors were performed in order to build an expert modeling system of multifactor analysis of the factors, which influence the ecological and economic indicators of the mechanisms that enable thermal stabilization in biogas installations. The quantity and quality factors are important and significantly help determine the innovative appeal of a bioconversion project variant. They allow constructing a tree of inference of influencing factors as linguistic variables on ecological and economic assessment of the project variant. The proposed system of fuzzy logical equations corresponds to linguistic variables and estimation terms according to the tree of inference. The system characterizes the knowledge base by means of expert statements about the links between fuzzy terms of input and output variables, which allow assessing an ecology-economic efficiency.
