The verbal balancing model for energy and carbon dioxide in production and use of biofuels

This paper presents the concept of a model for a computational tool for balancing energy and carbon dioxide for the production and use of biofuels. This model is based on the concept of life cycle analysis and covers all the stages of the processes of producing and processing raw materials for biofuels and generating energy from them. The purpose of the model and the computational tool is to demonstrate whether the biofuel produced in a series of unit processes can be called a renewable energy source in the full sense of the word, and whether its production and use is therefore sensible from an energetic point of view.