There is a great interest in biogas as an environmentally friendly alternative to oil and other fossil fuels. However, biogas has been criticized for releasing methane. As a greenhouse gas, methane is 20-25 times worse than carbon dioxide. But new calculations now show that biogas is nevertheless better than fossil fuels as long as the methane emissions are lower than 10-20 percent. It was previously believed that the cut-off point was about 5 percent.
“The margins are thus considerably greater than was previously assumed. Normally methane emissions from biogas are about 2-3 percent,” says Maria Berglund, researcher on Environmental and Energy Systems at Lund University in Sweden.
The point of departure for her dissertation, Biogas production from a systems analytical perspective, has been to study how biogas actually behaves from the point of view of energy and the environment.
Kristina Lindgärde | alfa
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At the JEC World Composite Show in Paris in March 2018, the Fraunhofer Institute for Laser Technology ILT will be focusing on the latest trends and innovations in laser machining of composites. Among other things, researchers at the booth shared with the Aachen Center for Integrative Lightweight Production (AZL) will demonstrate how lasers can be used for joining, structuring, cutting and drilling composite materials.
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Scientists at Tokyo Institute of Technology (Tokyo Tech) and Tohoku University have developed high-quality GFO epitaxial films and systematically investigated their ferroelectric and ferromagnetic properties. They also demonstrated the room-temperature magnetocapacitance effects of these GFO thin films.
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