Life Cycle Energy Consumption and Carbon Dioxide Emissions of Agricultural Residue Feedstock for Bioenergy

Applied Sciences

卷:11

Jan Stebila¹  Valerii Havrysh²  Anna Brzozowska³  Antonina Kalinichenko⁴ 

[1] Department of Technology, Faculty of Natural Sciences, Matej Bel University, 974 01 Banská Bystrica, Slovakia;

[2] Department of Tractors and Agricultural Machines, Operating and Maintenance, Mykolayiv National Agrarian University, 54020 Mykolaiv, Ukraine;

[3] Faculty of Management, Czestochowa University of Technology, 42-201 Czestochowa, Poland;

[4] Institute of Environmental Engineering and Biotechnology, University of Opole, 45-040 Opole, Poland;

关键词: bioenergy;    agricultural residues;    power generation;    energy;    energy analysis;   

DOI  :  10.3390/app11052009

来源: DOAJ

【 摘 要 】

The depletion of fossil fuels and climate change concerns are drivers for the development and expansion of bioenergy. Promoting biomass is vital to move civilization toward a low-carbon economy. To meet European Union targets, it is required to increase the use of agricultural residues (including straw) for power generation. Using agricultural residues without accounting for their energy consumed and carbon dioxide emissions distorts the energy and environmental balance, and their analysis is the purpose of this study. In this paper, a life cycle analysis method is applied. The allocation of carbon dioxide emissions and energy inputs in the crop production by allocating between a product (grain) and a byproduct (straw) is modeled. Selected crop yield and the residue-to-crop ratio impact on the above indicators are investigated. We reveal that straw formation can consume between 30% and 70% of the total energy inputs and, therefore, emits relative carbon dioxide emissions. For cereal crops, this energy can be up to 40% of the lower heating value of straw. Energy and environmental indicators of a straw return-to-field technology and straw power generation systems are examined.

【 授权许可】

Unknown