期刊
RENEWABLE ENERGY
卷 66, 期 -, 页码 232-240出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.renene.2013.12.011
关键词
Biogas; Energy performance; Waste management; Energy efficiency
资金
- Finnish Foundation for Technology Promotion
This study focused on identifying various system boundaries and evaluating methods of estimating energy performance of biogas production. First, the output-input ratio method used for evaluating energy performance from the system boundaries was reviewed. Secondly, ways to assess the efficiency of biogas use and parasitic energy demand were investigated. Thirdly, an approach for comparing biogas production to other energy production methods was evaluated. Data from an existing biogas plant, located in Finland, was used for the evaluation of the methods. The results indicate that calculating and comparing the output-input ratios (R-pr1, R-pr2, R-ut, R-pl and R-sy) can be used in evaluating the performance of biogas production system. In addition, the parasitic energy demand calculations (w) and the efficiency of utilizing produced biogas (eta) provide detailed information on energy performance of the biogas plant. Furthermore, R-f and energy output in relation to total solid mass of feedstock (F-O/TS) are useful in comparing biogas production with other energy recovery technologies. As a conclusion it is essential for the comparability of biogas plants that their energy performance would be calculated in a more consistent manner in the future. (C) 2013 Elsevier Ltd. All rights reserved.
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