Formulation of a model for energetic efficiency of agricultural subsystem of biofuel production

Fluxes of energy occurring during subsequent agro-technical operations are evaluated in a deterministic mathematical model of “energetic” plantation aimed towards biofuel production. The agro-technical production system is considered as a part of larger system including industrial part processing crops to biofuel, but at this stage of research is considered separately. The scale of production, determining the demand of industrial part of the system is implicitly considered, and the effects of such interaction are indicated. The derived efficiency indicator, principally corresponding to EROEI, depends upon the yield of plantation and technical characteristics of machinery being used, it also indicates that one of the most important factors decreasing energetic efficiency of plantation is transport of goods and machinery outside of cultivated fields.