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The world needs more efficient energy systems based on renewable raw material, an equation not easily solved. At Karlstad University, research and education are in progress to find sustainable energy systems, for instance, through a project in which pellets replace charcoal in cooking solutions in Zambia, because cooking with charcoal as fuel leads to extensive deforestation as well as health hazards. Globally, more deaths are caused by air pollution at home than malaria, HIV and tuberculosis put together.
"In this study we looked at 12 available residual products for pellet production in Zambia and how these products interact in different combinations," says Stefan Frodeson, lecturer in environmental and energy systems. "The study has led to the discovery of several different residual products from forestry and agriculture. Other important findings are also how the materials could be used to manufacture a product that meets the demands of production in Africa."
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