All over the world there is a strong interest and also potential for biogas production from organic residues as well as from different crops. However, to be commercially competitive with other types of fuels, efficiency improvements of the biogas production process are needed. In this paper,...

Torrefaction is a thermal pre-treatment process for upgrading raw biomass into a more energy dense fuel. Torrefied biomass is combined with a densification process to increase its bulk density similar to conventional wood-pelleting production. This paper identifies the significant environmental...

The paper argues that potential insights into the emergence of more sustainable energy systems relevant to the promotion of energy security may be obtained from adopting neo-institutional theory. The paper suggests that a more comprehensive analytical approach is available compared with previous...

This article describes the development of a geographic information systems (GIS) based biomass transport analysis tool BIT-UU used in combination with the European renewable energy model Green-X. BIT-UU calculates cost and GHG emissions from lowest cost routes, using intermodal transport (by...

Alternative fuels are expected to play a major role in EU in the coming years due European Directives on the promotion of renewable energies and reduction of greenhouse gas emissions in transports. However, while in road transports a variety of possible renewable fuels (mainly biofuels, but also...

Understanding public knowledge, attitude, and perception towards energy and environmental issues is indispensible for achieving renewable energy targets. The main objective of this study is to investigate the level of knowledge and perception of renewables (especially biomass fuels) among rural...

A fixed bed reactor has been developed for study of biomass torrefaction, followed by thermogravimetric (TG) analyses. Norway spruce stump was used as feedstock. Two other types of biomass, poplar and fuel chips were also included in the study for comparison. Effects of feedstock types and...

Two energy production systems using short rotation coppice (SRC) willow chips were evaluated: bioethanol production via enzyme-catalyzed hydrolysis and electricity production following a biomass integrated gasification combined cycle scheme.