Depletion of fossil fuels and their environmental risks have brought to the foreground energy crops as a possible source of bioenergy. Industrial hemp (Cannabis sativa […]
Conceptual design of experimental solar heat accumulation system with phase change materials
The research on solar heating systems often is faced with choice of carrying out experiments in real systems with changing parameters or to use modelling […]
Evaluation of stability of elastomer packing exposed to influence of various biofuels
The aim of the European Union Member States is to reduce dependence on fuels derived from oil. For this reason, significant attention is paid to […]
Examination of commercial additives for biogas production
The formation of biogas from biomass is a complex process with a multitude of variable process parameters. Stability of biogas production and production rate can […]
Seasonal temperature variation in heat collection liquid used in renewable, carbon-free heat production from urban and rural water areas
A renewable energy source called sediment energy is based on heat collection with tubes similar to those used in ground energy and is installed inside […]
Direct and indirect energy input in the harvesting of Scots pine and Norway spruce stump-root systems from areas cleared for farmland
The aim of this study was to find the net energy and energy ratios for the recovery of Scots pine and Norway spruce stump-root systems […]
Hot-air distribution in the floor heating
The aim of this paper is to present results of measurement of hot-air floor heating system. The energy from fireplace directly heats the house near […]
Influence of lammas shoots on productivity of Norway spruce in Latvia
The Norway spruce is widely spread in Eastern Europe and it is managed mainly for the production of sawlogs, though its logging residues are now […]
Investigation of fuel effect on biomass gasification process using equilibrium model
Gasification is one of the most promising technologies of converting biomass into energy. Different type of biomass can be used for gasification process since there […]