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Methodology for Analysing Energy Demand in Biogas Production Plants: A Comparative Study of Two Biogas Plants
Linköping University, Department of Management and Engineering, Energy Systems. Linköping University, Faculty of Science & Engineering. Linköping University, Biogas Research Center. (Industriella energisystem)ORCID iD: 0000-0003-0360-6019
Linköping University, Department of Management and Engineering, Energy Systems. Linköping University, Faculty of Science & Engineering. Linköping University, Biogas Research Center. (Industriella energisystem)
Tranås Energi, Sweden.
2017 (English)In: Energies, ISSN 1996-1073, E-ISSN 1996-1073, Vol. 10, no 11, article id 1822Article in journal (Refereed) Published
Abstract [en]

Biogas production through anaerobic digestion may play an important role in a circular economy because of the opportunity to produce a renewable fuel from organic waste. However, the production of biogas may require energy in the form of heat and electricity. Therefore, resource-effective biogas production must consider both biological and energy performance. For the individual biogas plant to improve its energy performance, a robust methodology to analyse and evaluate the energy demand on a detailed level is needed. Moreover, to compare the energy performance of different biogas plants, a methodology with a consistent terminology, system boundary and procedure is vital. The aim of this study was to develop a methodology for analysing the energy demand in biogas plants on a detailed level. In the methodology, the energy carriers are allocated to: (1) sub-processes (e.g., pretreatment, anaerobic digestion, gas cleaning), (2) unit processes (e.g., heating, mixing, pumping, lighting) and (3) a combination of these. For a thorough energy analysis, a combination of allocations is recommended. The methodology was validated by applying it to two different biogas plants. The results show that the methodology is applicable to biogas plants with different configurations of their production system.

Place, publisher, year, edition, pages
MDPIAG , 2017. Vol. 10, no 11, article id 1822
Keywords [en]
biogas production, energy demand, methodology, anaerobic digestion, energy performance, renewable fuel, waste management
National Category
Energy Systems Bioenergy
Identifiers
URN: urn:nbn:se:liu:diva-142920DOI: 10.3390/en10111822ISI: 000417046500141OAI: oai:DiVA.org:liu-142920DiVA, id: diva2:1156034
Projects
Biogas Research Center
Funder
Swedish Energy Agency
Note

Funding agencies: Swedish Energy Agency; Linkoping University

Available from: 2017-11-10 Created: 2017-11-10 Last updated: 2017-12-29

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Johansson, MariaLindkvist, Emma
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