Selected emissions and efficiencies of energy systems based on logging and sawmill residues

Helena Mälkki (Corresponding Author), Yrjö Virtanen

Research output: Contribution to journalArticleScientificpeer-review

32 Citations (Scopus)

Abstract

Bioenergy has an important role in the implementation of the Kyoto agreement in Finland. The main sources of wood residues for energy production are logging areas and sawmills. The use of forest chips can be of great significance in reducing carbon dioxide emissions by replacing fossil fuels. Increasing the use of forest chips has environmental benefits, but it also includes possible environmental disadvantages. Therefore, system research is needed to assess the forest chip utilisation prospects for their environmental quality to secure sustainable forest management. Life-cycle methodology was developed and applied to assess environmental burdens and impacts of the logging and sawmill residues throughout the whole fuel chain from the forest to energy production. According to the study, the energy efficiencies of the forest chip systems are quite high. Net CO2 emissions of the systems are low owing to the low input of external primary energy required to operate the systems. Although wood energy is renewable, it has many similarities with fossil fuels, e.g. as the emissions of the conversion phase are significant.
Original languageEnglish
Pages (from-to)321-327
Number of pages7
JournalBiomass and Bioenergy
Volume24
Issue number4-5
DOIs
Publication statusPublished - 2003
MoE publication typeA1 Journal article-refereed
EventIEA Bioenergy Task 31 Workshop "Principles and Practice of Forestry and Bioenergy in Densely-Populated Regions" - , Netherlands
Duration: 16 Sep 200121 Sep 2001

Fingerprint

Sawmills
sawmills
energy efficiency
Fossil fuels
logging
Wood
Forestry
Energy efficiency
energy
fossil fuels
Life cycle
Carbon dioxide
fossil fuel
carbon dioxide
primary energy
wood residues
sustainable forestry
environmental quality
bioenergy
ecosystem services

Keywords

  • life cycle assessment
  • greenhouse gases
  • environmental emissions
  • environmental impacts
  • logging residues
  • sawmill residues
  • wood chips
  • forest chips
  • forest residues
  • bioenergy
  • biomass
  • biofuels
  • climate change

Cite this

Mälkki, Helena ; Virtanen, Yrjö. / Selected emissions and efficiencies of energy systems based on logging and sawmill residues. In: Biomass and Bioenergy. 2003 ; Vol. 24, No. 4-5. pp. 321-327.
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title = "Selected emissions and efficiencies of energy systems based on logging and sawmill residues",
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Selected emissions and efficiencies of energy systems based on logging and sawmill residues. / Mälkki, Helena (Corresponding Author); Virtanen, Yrjö.

In: Biomass and Bioenergy, Vol. 24, No. 4-5, 2003, p. 321-327.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Selected emissions and efficiencies of energy systems based on logging and sawmill residues

AU - Mälkki, Helena

AU - Virtanen, Yrjö

PY - 2003

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N2 - Bioenergy has an important role in the implementation of the Kyoto agreement in Finland. The main sources of wood residues for energy production are logging areas and sawmills. The use of forest chips can be of great significance in reducing carbon dioxide emissions by replacing fossil fuels. Increasing the use of forest chips has environmental benefits, but it also includes possible environmental disadvantages. Therefore, system research is needed to assess the forest chip utilisation prospects for their environmental quality to secure sustainable forest management. Life-cycle methodology was developed and applied to assess environmental burdens and impacts of the logging and sawmill residues throughout the whole fuel chain from the forest to energy production. According to the study, the energy efficiencies of the forest chip systems are quite high. Net CO2 emissions of the systems are low owing to the low input of external primary energy required to operate the systems. Although wood energy is renewable, it has many similarities with fossil fuels, e.g. as the emissions of the conversion phase are significant.

AB - Bioenergy has an important role in the implementation of the Kyoto agreement in Finland. The main sources of wood residues for energy production are logging areas and sawmills. The use of forest chips can be of great significance in reducing carbon dioxide emissions by replacing fossil fuels. Increasing the use of forest chips has environmental benefits, but it also includes possible environmental disadvantages. Therefore, system research is needed to assess the forest chip utilisation prospects for their environmental quality to secure sustainable forest management. Life-cycle methodology was developed and applied to assess environmental burdens and impacts of the logging and sawmill residues throughout the whole fuel chain from the forest to energy production. According to the study, the energy efficiencies of the forest chip systems are quite high. Net CO2 emissions of the systems are low owing to the low input of external primary energy required to operate the systems. Although wood energy is renewable, it has many similarities with fossil fuels, e.g. as the emissions of the conversion phase are significant.

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KW - greenhouse gases

KW - environmental emissions

KW - environmental impacts

KW - logging residues

KW - sawmill residues

KW - wood chips

KW - forest chips

KW - forest residues

KW - bioenergy

KW - biomass

KW - biofuels

KW - climate change

U2 - 10.1016/S0961-9534(02)00169-1

DO - 10.1016/S0961-9534(02)00169-1

M3 - Article

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SN - 0961-9534

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