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Exergy Analysis of the Supply of Energy and Material Resources in the Swedish Society
Halmstad University, School of Business, Engineering and Science, Biological and Environmental Systems (BLESS), Energy Science.ORCID iD: 0000-0001-8307-124X
Öxbo, Lerum, Sverige.
2016 (English)In: Energies, ISSN 1996-1073, E-ISSN 1996-1073, Vol. 9, no 9, 707Article in journal (Refereed) Published
Abstract [en]

Exergy is applied to the Swedish energy supply system for the period 1970–2013. Exergy flow diagrams for the systems of electricity and district heating as well as for the total supply system of energy and material resources for 2012 are presented. The share of renewable use has increased in both electricity and district heat production. The resource use is discussed in four sectors: residential and service, transportation, industry and agriculture. The resource use is also analyzed with respect to exergy efficiency and renewable share. The total exergy input of energy and material resources amounts to about 2700 PJ of which about 530 PJ was used for final consumption in 2012. The results are also compared with similar studies. Even though the share of renewable resource use has increased from 42% in 1980 to 47% in 2012, poor efficiency is still occurring in transportation, space heating, and food production. A strong dependence on fossil and nuclear fuels also implies a serious lack of sustainability. A more exergy efficient technology and a higher renewable energy share are needed in order to become a more sustainable society.

Place, publisher, year, edition, pages
Basel: M D P I AG , 2016. Vol. 9, no 9, 707
Keyword [en]
energy, renewable, exergy flow diagram, electricity, district heating, Sweden
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:hh:diva-31926DOI: 10.3390/en9090707OAI: oai:DiVA.org:hh-31926DiVA: diva2:957803
Available from: 2016-09-05 Created: 2016-09-05 Last updated: 2016-09-05Bibliographically approved

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CiteExportLink to record
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Cite
Citation style
  • apa
  • harvard1
  • 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