Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Forest fuel reduces climate changes

03.06.2008
Growing concentrations of greenhouse gases in the atmosphere primarily from CO2 emissions from the combustion of fossil fuels are impacting the climate on earth. Replacing fossil fuels with forest fuels is becoming more and more urgent. That would reduce the net emissions of CO2 and the effects on the climate. This is shown in a dissertation from Mid Sweden University.

Large-scale, long-distance transports of biofuels from central Sweden to central Europe may be a cost-effective and attractive way to reduce CO2 emissions. This is confirmed by comparative analyses of costs, primary energy use, and CO2 emissions performed for various forest fuel systems. The findings show that a system of lashed branches and tops from harvested forests evinces good cost-effectiveness. It also has a high potential to reduce the net emissions of CO2 per hectare of forest.

"A large number of systems were compared in terms of terrain, concentration of forest fuel, and transport distance. If the preconditions are changed, then the potential for the various forest fuel systems changes as well," says Lisa Eriksson at Mid Sweden University. These systems were compared on a local, national, and international scale.

A lashed system means that more biomass per hectare can be delivered to end users than with a pellet system. This is due to the consumption of biomass in the production of pellets. The amount of material gathered per hectare is a central factor. Extracting brush from thinning together with stumps, branches, and tops from harvesting yields a high potential to avoid fossil CO2 emissions per hectare of forest. The total amount of available forest fuel in Sweden has been estimated at roughly 66 TWh per year.

... more about:
»CO2 »Climate »emissions »hectare

Lisa Eriksson will publicly defend her thesis at the Department of Engineering, Physics, and Mathematics at Mid Sweden University, Östersund Campus. The subject is Eco-technology and Environmental Science and the title of the dissertation is Forest Fuel Systems-­Comparative Analyses in a Life Cycle Perspective.

Questions can be posed to:
Lisa Eriksson, phone: +46 (0)63 16 55 35. E-mail lisa.eriksson@miun.se
and Leif Gustavsson, phone: +46 (0)63 16 59 79 or cell phone: +46 (0)70 344 70

Bertil Born | idw
Further information:
http://www.vr.se
http://www.miun.se

Further reports about: CO2 Climate emissions hectare

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: In best circles: First integrated circuit from self-assembled polymer

For the first time, a team of researchers at the Max-Planck Institute (MPI) for Polymer Research in Mainz, Germany, has succeeded in making an integrated circuit (IC) from just a monolayer of a semiconducting polymer via a bottom-up, self-assembly approach.

In the self-assembly process, the semiconducting polymer arranges itself into an ordered monolayer in a transistor. The transistors are binary switches used...

Im Focus: Demonstration of a single molecule piezoelectric effect

Breakthrough provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale

Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...

Im Focus: Hybrid optics bring color imaging using ultrathin metalenses into focus

For photographers and scientists, lenses are lifesavers. They reflect and refract light, making possible the imaging systems that drive discovery through the microscope and preserve history through cameras.

But today's glass-based lenses are bulky and resist miniaturization. Next-generation technologies, such as ultrathin cameras or tiny microscopes, require...

Im Focus: Stem cell divisions in the adult brain seen for the first time

Scientists from the University of Zurich have succeeded for the first time in tracking individual stem cells and their neuronal progeny over months within the intact adult brain. This study sheds light on how new neurons are produced throughout life.

The generation of new nerve cells was once thought to taper off at the end of embryonic development. However, recent research has shown that the adult brain...

Im Focus: Interference as a new method for cooling quantum devices

Theoretical physicists propose to use negative interference to control heat flow in quantum devices. Study published in Physical Review Letters

Quantum computer parts are sensitive and need to be cooled to very low temperatures. Their tiny size makes them particularly susceptible to a temperature...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

2nd International Conference on High Temperature Shape Memory Alloys (HTSMAs)

15.02.2018 | Event News

Aachen DC Grid Summit 2018

13.02.2018 | Event News

How Global Climate Policy Can Learn from the Energy Transition

12.02.2018 | Event News

 
Latest News

Researchers invent tiny, light-powered wires to modulate brain's electrical signals

21.02.2018 | Life Sciences

The “Holy Grail” of peptide chemistry: Making peptide active agents available orally

21.02.2018 | Life Sciences

Atomic structure of ultrasound material not what anyone expected

21.02.2018 | Materials Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>