ENERGY AND ECONOMIC EFFICIENCY OF PYROLYSIS-GASIFICATION SYSTEMS

• Datum: 2026
• Hauptverfasser: Chetveryk, H., Omarov , I.
• Format: Artikel
• Sprache: Ukrainisch
• Veröffentlicht: Institute of Renewable Energy National Academy of Sciences of Ukraine 2026
• Schlagworte: ENERGY AND ECONOMIC EFFICIENCY OF PYROLYSIS-GASIFICATION SYSTEMS
• Online Zugang: https://ve.org.ua/index.php/journal/article/view/645
• Назва журналу: Vidnovluvana energetika

A method for determining a composite indicator of the energy and economic efficiency of biomass thermochemical conversion pyrolysis-gasification systems is proposed. The method is implemented as a scoring model based on the weighted-sum approach, with score normalization of the evaluation criteria and consideration of the nonlinear effects of system design and process parameters, thereby ensuring accurate ranking and adaptability to variations in biomass properties. The following parameters were selected for the comparison of pyrolysis-gasification units: electrical and thermal power output of the unit; fuel moisture content; total and specific fuel consumption for the process; lower heating value (LHV) of the synthesis gas (syngas) and gas production capacity of the unit; and specific capital cost of the unit. The priority values and weighting coefficients required for calculations using the developed model were substantiated, and the validity of the adopted expert judgments regarding the parameter values of pyrolysis-gasification units and their weighting coefficients was verified. The energy-economic efficiency of existing biomass-to-syngas pyrolysis-gasification units intended for renewable-energy-based power generation systems was evaluated. It was established that the highest efficiency is achieved by multistage, high-capacity units with an electrical power output exceeding 500 kWel, employing advanced biomass-to-syngas conversion technologies that combine a floating fixed-bed or a dense fixed-bed fuel layer with hybrid pyrolysis. Methods of power generation based on biomass energy and solar energy were also analyzed.