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CO2 Mitigation: On Methods and Parameters for Comparison of Fossil-Fuel and Biofuel Systems
Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering, Physics and Mathematics.
Responsible organisation
2006 (English)In: Mitigation and Adaptation Strategies for Global Change, ISSN 1381-2386, E-ISSN 1573-1596, Vol. 11, no 5/6, 935-959 p.Article in journal (Refereed) Published
Abstract [en]

The replacement of fossil fuels by biofuels could be an important means of reducing net carbon dioxide (CO2) emission. An estimation of the CO2 mitigation efficiency of biofuel systems depends on the method and assumptions used. Here, different parameters and methods are discussed for comparing fossil-fuel- and biofuel-based systems. Three parameters are suggested: the monetary cost, the primary energy cost and the biofuel cost of CO2 mitigation. They are defined as the difference in monetary expenditure, primary energy use and biofuel use between the compared systems, divided by the difference in net CO2 emission between the systems. Cogeneration and separate production of electricity and heat is then compared using these parameters and the methods of multi-functional products or subtraction. In both methods, either electricity or heat is regarded as the main product and the other is regarded as a by-product. The multi-functional method is preferable due to its transparency as both the main product and the by-product are part of the functional unit. Using heat as the main product illustrates the typical situation that the heat demand limits the use of cogeneration. When comparing systems the output from them should not differ. If the by-product is not fully, cogenerated part of the by-product has to be produced separately. A logical choice for producing this part of the by-product is to use a similar fuel and technology as used for cogeneration.

Place, publisher, year, edition, pages
2006. Vol. 11, no 5/6, 935-959 p.
Keyword [en]
Energy, methods, Biofuel, CO2 mitigation, Energy systems, Methodology, Parameters
National Category
Other Environmental Engineering
Identifiers
URN: urn:nbn:se:miun:diva-4823DOI: 10.1007/s11027-006-9028-7Scopus ID: 2-s2.0-33750401397Local ID: 3806OAI: oai:DiVA.org:miun-4823DiVA: diva2:29855
Available from: 2008-11-18 Created: 2008-11-18 Last updated: 2016-09-30Bibliographically approved

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf